JP7535836B2 - Embankment construction management support system - Google Patents

Description

The present invention relates to an embankment construction management support system, and more specifically, to technology that is effective when applied to an embankment management support system that manages and supports embankment construction for building foundations for buildings such as housing sites and roads.

In general, in the construction of embankments to build foundations for buildings such as housing sites and roads, soil from a borrow pit is loaded onto the carrier of a dump truck or similar device and transported to the embankment, which is the construction site, where it is unloaded. The unloaded soil is then spread to a specified thickness in each specified area using a leveling machine such as a backhoe, and is then compacted using a compaction machine such as a vibrating roller.

In this embankment construction, it is necessary to guarantee the quality of the embankment after construction, so it is necessary to understand the embankment information for each embankment layer and manage the construction results. In the past, the understanding and management of such information required the construction manager to collect various information and create documents manually, but the creation work was time-consuming and labor-intensive.

For example, Patent Document 1 discloses an embankment construction management support system that records soil information on the embankment material excavated in the excavation work area, information on the transport vehicle transporting the embankment, information on the transport vehicle that laid the embankment in the embankment work area, and location information of the embankment, in order to facilitate the creation and management of documents on the results of embankment construction. It also divides the embankment work area into cubes that can be set to any dimensions to generate multiple mesh blocks, and assigns and manages soil information on the embankment material and location information of the embankment to each cube of the multiple mesh blocks.

For example, Patent Document 2 discloses a material management system that estimates the volume of the material being transported from its weight, sets management blocks accordingly, and records the placement position information and material characteristic information for each management block in association with each other in order to more accurately manage materials when pouring cement-based materials and the like.

JP 2006-291454 A JP 2009-102894 A

However, as mentioned above, in embankment construction, sufficient consideration is not given to the complexity of the work. For example, in Patent Document 1, the backhoe operator inputs soil information about the embankment materials in the excavation area and information about the transport vehicle transporting the embankment, while the dump truck driver inputs information about the transport vehicle that built the embankment in the embankment area and information about the position of the embankment, which creates the problem that work slows down due to the work of acquiring and inputting information, reducing the efficiency of embankment construction work. This also creates the problem that errors are likely to occur when inputting information. Patent Document 2 does not disclose the loading position of the cement-based material, as the loading position of the cement-based material is fixed.

In addition, the above-mentioned Patent Documents 1 and 2 describe obtaining position information when unloading soil loaded on a dump truck at an embankment site, but do not take into consideration the spread of soil to the surrounding area during unloading, leveling, and compaction.

In addition, when assigning soil information to each of multiple mesh blocks, there are cases where blank mesh blocks are generated in which no soil information is recorded in the data because embankment has actually been built but no direct unloading has been performed. For such blank mesh blocks, the necessary thickness is ensured by pouring in embankment material from neighboring mesh blocks in actual construction, but the soil quality is not taken into consideration. In other words, the soil quality in each mesh block changes as the soil spreads and mixes with the soil in other mesh blocks. Also, if a mesh block where embankment work has actually been completed is blank, there is no soil information in the blank mesh block, and the data ignores the presence of the soil that has flowed into that mesh block.

As a result of these factors, the reliability of the soil information assigned to the mesh blocks of the embankment site decreases, which poses the problem of reduced reliability of images displaying soil information of the embankment site during and after construction. In addition, the reliability of the soil information assigned to the mesh blocks of the embankment site decreases, which poses the problem of reduced ability to trace the history of the quality and condition of the embankment site after construction (so-called traceability).

The present invention was made in light of the above technical background, and aims to improve management efficiency by automating recording work related to embankment construction work.

Another object of the present invention is to improve the reliability of images showing soil information of an embankment during and after construction by reflecting the soil mixture of each of a number of mesh-like voxel blocks generated by dividing the embankment into a number of cubes that can be set to predetermined dimensions, and to make the soil information easier to interpret by simplifying the display.

Another object of the present invention is to improve the traceability of embankment materials brought into an embankment site.

In order to solve the above-mentioned problems, the embankment construction management support system of the present invention described in claim 1 is an embankment construction support system in which embankment materials excavated by a loader at a borrow pit are loaded onto a transport vehicle and transported to an embankment site, and the embankment materials are unloaded at a filling location of the embankment site and compacted by a compactor to form an embankment, and the embankment site is displayed on a display unit in a visible state during and after construction based on embankment site information created based on information acquired at the borrow pit and the embankment site and transmitted to a server, and the embankment construction is managed and supported, in which the loader is equipped with a transmission terminal that transmits unique information of the loader, the transport vehicle is equipped with a vehicle information processing system that transmits information of the transport vehicle to the server, and the vehicle information processing system has a function of calculating the position of the transport vehicle and transmitting vehicle position information having the position information and date and time information when the position information was calculated to the server, and a function of acquiring unique information of the loader transmitted from the transmission terminal and transmitting the vehicle position information to the server. a function of transmitting loading position information to the server, the loading position information including position information of the transport vehicle on which the embankment material is loaded by the loader, date and time information when the position information was calculated, unique information of the transport vehicle on which the embankment material is loaded by the loader, and unique information of the loader; and a function of detecting unloading of the transport vehicle and transmitting unloading position information to the server, the unloading position information including position information of the transport vehicle that unloaded the embankment material, date and time information when the position information was calculated, unique information of the transport vehicle that unloaded the embankment material, and unique information of the loader that loaded the transport vehicle that unloaded the embankment material. The compactor includes a compaction information processing system that transmits information of the compactor to the server, and the compaction information processing system calculates the position of the compactor, and has the position information, date and time information when the position information was calculated, the number of compactions calculated based on the position information, and an acceleration response value created based on the measurement value of an accelerometer provided in the compactor. and a function of transmitting compaction information to the server, the server being provided with a storage unit for storing information and an information processing unit for processing the information, the storage unit having in advance stored therein soil master information indicating unique information of the loader and information on the soil quality to be excavated by the loader in a predetermined period of time, the information processing unit having a function of generating a plurality of voxel blocks arranged in a mesh pattern by dividing the embankment site into a plurality of cubes that can be set to predetermined dimensions, a function of creating unloading soil quality information having unloading position information of the transport vehicle, date and time information when the position information was calculated, and information on the soil quality of the unloaded embankment material based on the unloading position information and the soil quality master information, and storing the information in the storage unit, a function of determining the soil quality of each of the plurality of voxel blocks based on the unloading soil quality information and the compaction information, and storing the information in the storage unit, and a function of generating the embankment site information by dividing the plurality of voxel blocks of the embankment site information into a plurality of voxel blocks. The display unit has a function of displaying the fill material on the display unit in a state where the fill material can be seen, and in determining the soil type of each of the plurality of voxel blocks, the center of gravity position in a plan view of the plurality of voxel blocks is found, and for the voxel block containing the position where the fill material of the transport vehicle was unloaded and the voxel blocks surrounding the voxel block, the distance from the unloading position to the center of gravity position of each voxel block is calculated based on the distance, the mixture ratio of the fill material of each soil type in each voxel block is calculated based on the distance, the soil type with the highest mixture ratio in each voxel block is determined to be the soil type of the fill material of each voxel block, and blank voxel blocks whose soil type has not been determined are detected among the plurality of voxel blocks based on the soil type determination information and the compaction information, and the soil type of the fill material of the blank voxel block is determined based on the soil type of the fill material of the voxel blocks surrounding the blank voxel block.

The embankment construction management support system of the present invention described in claim 2 is characterized in that, in the invention described in claim 1 above, in calculating the mixing ratio of the embankment material of each soil type in each voxel block, a weighting value indicating how much of the unloaded embankment material is mixed into each voxel block based on the distance is calculated from the reciprocal of the ratio of the distance from the unloading position to the center of gravity position of each voxel block, and the mixing ratio of the embankment material of each soil type in each voxel block is calculated by calculating the ratio of the weighting value of each soil type using the weighting value.

The embankment construction management support system of the present invention described in claim 3 is characterized in that, in the invention described in claim 1 or 2 above, the weighting value is calculated for the voxel block containing the unloading position and the surrounding voxel blocks in the same layer as the voxel block and in contact with the outer peripheral face or edge of the voxel block.

The embankment construction management support system of the present invention described in claim 4 is characterized in that, in the invention described in any one of claims 1 to 3 above, each of the multiple voxel blocks is identified according to soil type and displayed on the display unit.

The embankment construction management support system of the present invention described in claim 5 is characterized in that, in the invention described in claim 4, the identification of the multiple voxel blocks is displayed by expressing the mixture ratio of the embankment material of each of the multiple voxel blocks in terms of light transmittance.

The embankment construction management support system of the present invention described in claim 6 is an invention described in any one of claims 1 to 5 above, characterized in that text information on the soil type and mixture ratio of each of the multiple voxel blocks can be freely displayed on the display unit.

The embankment construction management support system of the present invention described in claim 7 is an invention described in any one of claims 1 to 6 above, characterized in that, in generating the multiple voxel blocks, the shapes of the multiple voxel blocks are made uniform.

The embankment construction management support system of the present invention described in claim 8 is an invention described in any one of claims 1 to 7 above, characterized in that, in displaying the plurality of voxel blocks, the height of the voxel blocks is displayed on the display unit in a shape that corresponds to the change due to compaction.

According to the present invention, by automating the recording work related to embankment construction work, it is possible to improve the efficiency of management.

In addition, according to the present invention, by dividing the embankment into a number of cubes that can be set to predetermined dimensions and reflecting the mixture of soil and sand in each of a number of mesh-like voxel blocks generated, it is possible to improve the reliability of images showing soil information of the embankment during and after construction, and by simplifying the display, it is possible to make the soil information easier to interpret.

The present invention also makes it possible to improve the traceability of embankment materials brought into an embankment site.

1 is a schematic overall configuration diagram showing the overall configuration of an embankment construction area and the overall configuration of an embankment management support system according to one embodiment of the present invention; FIG. 2 is a schematic configuration diagram of the embankment construction management support system of FIG. 1. FIG. 11 is a diagram illustrating an example of a setting file. FIG. 4A is a diagram showing an example of soil master information, and FIG. 4B is a diagram showing an example of entries when setting the soil master information. FIG. 13 is a diagram showing an example of unloading soil quality information. FIG. 11 is a diagram showing an example of embankment site information. 7A is a plan view of a main portion of an embankment used in rolling compaction management, and FIG. 7B is a plan view of a main portion showing voxel blocks arranged within the plane of the embankment for rolling compaction management in FIG. 7A. 1A is a plan view of a main portion of a voxel block of an embankment, and FIG. 1B is a diagram showing an example of weighting values for each voxel block. This is a plan view of a main part of a voxel block in an embankment, showing a schematic view of a portion of the voxel block to explain an example of the concept of determining the soil quality of the voxel block. 11 is an explanatory diagram for explaining an example of a soil type determination method when the mixing ratios of different soil types are equal in soil type determination of a voxel block. FIG. FIG. 13 is an explanatory diagram for explaining an example of soil type determination for a blank voxel block. 13 is a diagram showing a three-dimensional image of the embankment site displayed on a display screen based on embankment site information. FIG. 13A to 13D are diagrams showing three-dimensional images of a portion of the voxel block in FIG. 12.

Below, an embodiment of the present invention will be described in detail with reference to the drawings. In the drawings for explaining the embodiment, the same components are generally designated by the same reference numerals, and repeated explanations will be omitted.

Figure 1 is a schematic diagram showing the overall configuration of the embankment construction area and the overall configuration of the embankment management support system in this embodiment.

The embankment construction management support system SS of this embodiment is a system that, for example, in embankment construction in which soil (embankment material) S from a borrow pit Pd is loaded onto a dump truck (transport vehicle) Dt and transported to an embankment Pm, and the soil S is unloaded at the embankment location of the embankment Pm to carry out embankment construction, enables the embankment construction during and after construction to be displayed on a display unit such as an external device monitor M or printer P, using embankment construction information created based on information sent from the borrow pit Pd and the embankment Pm to the cloud server Sv, and manages and supports the embankment construction. The monitor M includes the screen of a personal computer in the office of the borrow pit Pd or the embankment Pm (not shown in FIG. 2), as well as the screen of an external device such as a tablet (not shown) carried by a worker or a construction machine operator.

The borrow pit Pd is a place where soil S to be piled up at the embankment Pm is stored. In this borrow pit Pd, the soil is stored in a state where the location (storage area), the type of soil, the layer thickness, the amount, and whether the soil contains impurities such as cement-based inclusions and slag are known in advance through investigation. The stored soil information such as the storage area, layer thickness, boundary position where the soil type changes, amount, and presence or absence of impurities for each soil type are stored in advance in the secondary storage device of the cloud server Sv or the personal computer of the borrow pit Pd office (not shown in FIG. 1). The soil S in such a borrow pit Pd is excavated in the required amount for each soil type by, for example, multiple backhoes (loaders) Bh, and loaded into dump trucks Dt.

For example, an ICT (Information and Communication Technology) construction machine is used as the backhoe Bh. That is, an ICT information processing system (not shown) mounted on the backhoe Bh automatically measures the position (latitude and longitude) of the backhoe Bh in real time using, for example, a Global Navigation Satellite System (GNSS) that uses radio waves from multiple positioning satellites Sp to perform positioning, or a Total Station (TS) that performs positioning using equipment installed on the ground, and supports the operator of the backhoe Bh by displaying the difference between the design data for embankment construction and the on-site data (position information, construction information, on-site situation information, etc. of the backhoe Bh) on an on-board monitor (not shown) installed in the driver's seat of the backhoe Bh.

In this embodiment, the soil quality of the soil S to be excavated for each backhoe Bh in a specified period is predetermined. The on-board monitor of the backhoe Bh utilizing ICT is linked to the embankment construction management screen, and is configured to display backhoe construction instruction information such as how much soil (soil quality) from which storage area to excavate in what period. In a backhoe Bh utilizing more advanced ICT, automatic control is performed, for example, such as stopping the arm if an attempt is made to excavate soil outside the specified range by mistake. This allows the operator of the backhoe Bh to check the excavation area (soil storage area) and excavation volume of the backhoe Bh in real time on the on-board monitor, thereby reducing or preventing human error such as excavating the wrong soil or excavating too much or too little.

In addition, in this embodiment, each backhoe Bh is equipped with a beacon (not shown) that uses, for example, BLE (Bluetooth Low Energy). Each beacon on each backhoe Bh has its own individual beacon ID (Identification) and transmits individual beacon ID information, for example, once every few seconds within a radius of several tens of meters. The beacon ID information of each beacon is unique information for each backhoe Bh.

The backhoe construction instruction information includes the construction period, excavation area (storage area for a specified soil and sand), and excavation volume for each beacon ID information of the beacon equipped on the backhoe Bh. This backhoe construction instruction information is stored in advance in a secondary storage device of the cloud server Sv or a personal computer in the office of the borrow pit Pd (not shown in FIG. 1).

The dump truck Dt is a transport vehicle that transports the soil S loaded onto the carrier by the backhoe Bh to the embankment Pm and unloads it at a designated embankment location. Note that, although multiple dump trucks Dt may transport soil S from one borrow pit Pd to the embankment Pm, or multiple dump trucks Dt may transport soil S from multiple borrow pits Pd to the embankment Pm, only one dump truck Dt is shown here to make the drawing easier to understand.

This dump truck Dt is equipped with a vehicle information processing system (not shown) that transmits vehicle information to the cloud server Sv. The vehicle information processing system includes a GPS (Global Positioning System) function unit, a beacon ID receiving unit, an unloading detection unit, a memory unit that stores information, and a transmitting unit that transmits the acquired information to the cloud server Sv. When this vehicle information processing system is installed, the name of the vehicle information processing system is registered (stored in the memory unit of the vehicle information processing system), and this name becomes unique information of the dump truck Dt.

The GPS function unit of the vehicle information processing system is a device that calculates the position (latitude and longitude) of the dump truck Dt using radio waves sent from multiple positioning satellites Sp. The vehicle information processing system transmits vehicle position information of the dump truck Dt obtained by the GPS function unit (position information of the dump truck Dt, date and time information when the position was calculated, and unique information of the dump truck Dt, etc.) to the cloud server Sv, for example, once per minute via a transmission unit compatible with LTE (Long Term Evolution). Information on the driving route and movement amount of the dump truck Dt created based on this vehicle position information is stored in the cloud server Sv as embankment site information.

The beacon ID receiver of the vehicle information processing system is a device that receives beacon ID information transmitted from a beacon equipped on the backhoe Bh. When the vehicle information processing system receives the beacon ID information, it stores the beacon ID information in the memory of the vehicle information processing system, and transmits the loading position information of the dump truck Dt (beacon ID information of the backhoe Bh, position information of the dump truck Dt loaded with soil S, date and time information when the position was calculated, and unique information of the dump truck Dt loaded with soil S, etc.) to the cloud server Sv via the transmission unit described above.

The unloading detection unit of the vehicle information processing system is a device that detects the unloading of the dump truck Dt in response to detection signals sent from, for example, a tactile sensor that detects that the driver of the dump truck Dt has touched the dump up lever and an acceleration sensor that detects the stop of the dump truck Dt. When unloading is detected, the vehicle information processing system transmits unloading position information of the dump truck Dt (position information of the dump truck Dt that unloaded, date and time information when the position was calculated, unique information of the dump truck Dt that unloaded, and beacon ID information of the backhoe Bh of the borrow pit Pd that loaded the soil S on the unloaded dump truck Dt, etc.) to the cloud server Sv via the above-mentioned transmission unit.

On the other hand, the embankment site Pm is a place where embankment construction is carried out to build the foundations of buildings such as housing sites and roads. At the embankment site Pm, multiple backhoes (not shown) and vibratory rollers (compactors) Rv are deployed. Note that only one vibratory roller Rv is shown here to make the drawing easier to see.

The soil S is transported to the embankment site Pm by the dump truck Dt and unloaded, then spread to a specified thickness in each specified area by a backhoe, and then compacted by a vibrating roller Rv. The backhoe then shapes the slope to the desired shape. For example, ICT construction machinery is used as the backhoe and vibrating roller Rv deployed at this embankment site Pm.

The ICT information processing system (rolling information processing system: not shown) mounted on the vibrating roller Rv automatically measures the position (latitude and longitude) of the vibrating roller Rv in real time, for example, using the above-mentioned GNSS or TS, and counts the number of times of rolling by comparing a plurality of rolling blocks RB (see FIG. 7 shown later) arranged in a mesh pattern for embankment construction described later with on-site data (position information of the vibrating roller Rv, construction information, site situation information, etc.). In other words, the ICT information processing system of the vibrating roller Rv counts the number of times of rolling by determining how many times the vibrating roller Rv has passed the same rolling block RB from the running trajectory of the vibrating roller Rv. The result is displayed on an on-board monitor (not shown) installed in the driver's seat of the vibrating roller Rv to support the driver of the vibrating roller Rv. This allows the driver of the vibrating roller Rv to check the running trajectory of the vibrating roller Rv and the number of times of rolling, etc. on the on-board monitor in real time. The compaction distribution map is displayed in color on the vehicle monitor of the vibratory roller Rv. This allows the operator of the vibratory roller to carry out work while checking the color-coded compaction distribution map on the vehicle monitor in real time. The vehicle monitor of the vibratory roller Rv also displays how many revolutions each area has been compacted, making it possible to check areas where the number of compactions is insufficient. Since problems can occur if the number of compactions is too many, the system also supports the maintenance of the number of compactions. This allows the entire layer of the embankment to be managed quickly, prevents insufficient compactions due to human error, and makes it possible to standardize quality. Furthermore, since the compaction information is stored, it can be used as an embankment management chart.

The ICT information processing system mounted on the vibrating roller Rv is configured to calculate an acceleration response value (Compaction Control Value, hereinafter referred to as CCV value) by arithmetic processing of a vibration acceleration waveform obtained by an acceleration sensor mounted on the roller part of the vibrating roller Rv. The ICT information processing system of the vibrating roller Rv is then configured to transmit the compaction information of the vibrating roller Rv (position information of the vibrating roller, date and time information when the position was calculated, compaction count information, CCV value information, etc.) to the cloud server Sv, for example, via an LTE-compatible transmission unit.

The vehicle information (loading position information, vehicle position information, and unloading position information) of the dump truck Dt described above is sent to server Sv1 of the cloud server Sv, and is further sent to server Sv3 via access server Sv2 and stored. In addition, based on the unloading position information described above and soil master information previously stored in the cloud server Sv, unloading soil information (dump-up information) described below that describes the soil quality of the unloaded soil is created and stored. The rolling information of the vibrating roller Rv described above is sent to server Sv3 of the cloud server Sv and stored, and the unloading soil information and the rolling information of the vibrating roller Rv described above are combined to create and store embankment site information (traceability information).

Next, Figure 2 is a schematic diagram of the embankment construction management support system shown in Figure 1. Note that Figure 2 shows a simplified server configuration of the cloud server Sv.

The cloud server Sv includes a communication interface 10, a CPU (Central Processing Unit) 11, a ROM (Read Only Memory) 12, a RAM (Random Access Memory) 13, and a secondary storage device 14.

The communication interface 10 is a functional unit that transmits and receives information between external devices (such as a personal computer in the office Fd of the borrow pit Pd, the vehicle information processing system of the dump truck Dt, the personal computer in the office Fm of the embankment Pm, and the rolling information processing system of the vibrating roller Rv of the embankment Pm).

The CPU (information processing unit) 11 is the device that controls the overall operation, and is electrically connected to and accessible from the communication interface 10, ROM 12, RAM 13, and secondary storage device 14 via a system bus (not shown). The ROM 12 is a memory in which various control programs and various parameters are pre-stored, and the RAM 13 is a memory used as a work area when the CPU 11 executes various processing programs.

The CPU 11 also transmits and receives various information to and from external devices connected to the network via the communication interface 10 (such as the vehicle information processing system of the dump truck, the ICT information processing system of the vibrating roller, the personal computer in the borrow pit office, and the personal computer in the embankment office), and stores the transmitted information (loading position information, vehicle position information, unloading position information, soil quality master information, backhoe construction instruction information, and stored soil information, etc.) and the created information (unloading soil quality information and embankment pit information) in the secondary storage device 14.

The personal computers (not shown) in the offices Fd, Fm of the borrow pit Pd and the embankment Pm are electrically connected to the communication interface 10 of the cloud server Sv via an Internet line or the like. The management workers in the offices Fd, Fm of the borrow pit Pd and the embankment Pm can access the embankment construction management site through their personal computers and log in to the site by entering a specific ID and password, etc., to view information on the site displayed on the monitor M (see Figure 1), add information, modify information, and print information such as forms through the printers P (see Figure 1) in the offices Fd, Fm.

The secondary storage device (storage unit) 14 is a storage device for storing various information, and is composed of, for example, a hard disk. In addition to various program files such as an embankment construction management program file PF1 and an embankment site information application program file PF2, the secondary storage device 14 stores a number of information files such as a setting file DF1, a soil master information file DF2, a stored soil information file DF3, backhoe construction instruction information DF4, a vehicle position information file DF5, a loading position information file DF6, an unloading position information file DF7, an unloading soil information file DF8, a rolling information file DF9, an embankment site information file DF10, and other information files.

The embankment construction management program file PF1 is a file that stores a program that supports the entire embankment construction process. The embankment site information application program file PF2 is a file that stores an application program that determines the soil quality of each embankment location in the embankment site and creates embankment site information.

The setting file DF1 stores information required for logging in to the embankment construction management site. Figure 3 shows an example of a setting file. The setting file DF1 stores a tenant ID, a site ID, a user name, a password, etc. The tenant ID is an ID that identifies the company, and is displayed as "tenant_id" on the management screen. The site ID is an ID that identifies the site, and is displayed as "site_id" on the management screen. The user name is the login user name, and is displayed as "user_name" on the management screen. The password is the password used when logging in to the embankment construction management site, and is displayed as "password" on the management screen.

The soil master information file DF2 in FIG. 2 stores the beacon ID information of the backhoe Bh at the borrow pit Pd and information on the soil type that the backhoe Bh will excavate during a specified period. This soil master information is stored in advance in the secondary storage device 14 of the cloud server Sv from, for example, a personal computer in the office of the borrow pit Pd.

Figure 4(a) shows an example of soil master information, and Figure 4(b) shows an example of how to set up soil master information. The "terminal_tag" item in Figure 4(a) is the beacon ID information of the backhoe. This beacon ID information is indicated by letters, for example, BL02-0002, BL02-0003, etc. in Figure 4(b). The "start and end periods of application" item in Figure 4(a) is the period during which a specific backhoe Bh excavates soil of a specific soil type, and is indicated by the date (YYYYMMDD). That is, for example, it is indicated by "20191001, 20191231" as shown in "start_date, end_date" in Figure 4(b). The "soil name" item in FIG. 4(a) is the name of the soil, and as shown in "soil_type" in FIG. 4(b), for example, it is shown as "2nd borrow pit, sand, clayey soil, 1st borrow pit, sand" and the like. In addition to the above, other soil names include, for example, gravel soil, ordinary soil, boulders, improved soil, crushed stone, and gravel.

The stored sediment information file DF3 in FIG. 2 stores the stored sediment information. The stored sediment information includes information such as the location (sand storage area), the type of soil, the layer thickness, and the amount of sediment S that has been secured. This stored sediment information is stored in advance, for example, in a secondary storage device of a personal computer in the office of the borrow pit Pd, or in the secondary storage device 14 of the cloud server Sv from the personal computer, etc.

Backhoe construction instruction information file DF4 stores backhoe construction instruction information. The backhoe construction instruction information includes the beacon ID information of each backhoe Bh in the borrow pit Pd, and for each beacon ID information, the construction period, excavation location (sand storage area), and excavated amount of sand. This backhoe construction instruction information is stored in advance, for example, in the secondary storage device of a personal computer in the office of the borrow pit Pd or in the secondary storage device 14 of the cloud server Sv from the personal computer, etc.

The vehicle position information file DF5 stores vehicle position information (position information of the dump truck Dt, information on the date and time when the position was calculated, and information specific to the dump truck Dt) sent from the vehicle information processing system of the dump truck Dt to the cloud server Sv. From this vehicle position information, the operating route and amount of movement of the dump truck Dt while it is moving are calculated and stored in the secondary storage device 14 as embankment site information.

The loading position information file DF6 stores the loading position information (beacon ID information of the backhoe Bh, position information of the dump truck Dt loaded with the soil S, date and time information when the position was calculated, and unique information of the dump truck Dt loaded with the soil S) sent from the vehicle information processing system of the dump truck Dt to the cloud server Sv when the backhoe Bh loaded the soil S onto the dump truck Dt at the borrow pit Pd.

The unloading position information file DF7 stores unloading position information (position information of the dump truck Dt that unloaded, date and time information when the position was calculated, unique information of the dump truck Dt that unloaded, and beacon ID information of the backhoe Bh that loaded the soil S at the borrow pit Pd onto the unloading dump truck Dt) sent from the vehicle information processing system of the dump truck Dt to the cloud server Sv when the dump truck Dt unloaded at the embankment Pm.

Unloading soil information file DF8 stores unloading soil information describing the soil quality of the soil S unloaded at the embankment site Pm (position information of the dump truck Dt that unloaded the load, date and time information when the position was calculated, unique information of the dump truck Dt that unloaded the load, beacon ID information of the backhoe Bh that loaded the soil S onto the unloading dump truck Dt at the borrow site Pd, and soil quality information of the unloaded soil S).

For example, information on the height of the unloading position of the dump truck Dt and information on the unloading range may be added as the unloading soil information. In addition, since the rear end of the loading platform of the dump truck Dt in a plan view (the position where the soil S is actually unloaded) is away from the GPS function unit that calculates the position of the dump truck Dt, a correction may be made by adding the distance between the rear end of the loading platform of the dump truck Dt and the GPS function unit to the position calculated by the GPS function unit.

This unloading soil information is created by the CPU 11 based on the unloading position information and the soil master information exemplified in FIG. 4. That is, the CPU 11 automatically determines the soil quality of the unloaded soil and sand by finding the relevant beacon ID information from the soil master information exemplified in FIG. 4 based on the beacon ID information of the backhoe Bh of the unloading position information and the date and time information, and stores it in the secondary storage device 14. In this manner, in this embodiment, the information is linked so that the soil quality of the unloaded soil and sand S can be automatically determined by the beacon ID information of the backhoe Bh at the borrow pit Pd. Therefore, at the borrow pit Pd, there is no need for the worker to check the soil quality of the soil and sand S loaded on the dump truck Dt or to input the soil quality. Therefore, it is possible to prevent the work at the borrow pit Pd from stagnating, and the efficiency of the embankment construction work can be improved. In addition, it is possible to eliminate human error when inputting information, and therefore the traceability of the embankment site can be improved.

Figure 5 shows an example of unloading soil quality information. The latitude and longitude items indicate the position information of the dump truck Dt that unloaded at the embankment Pd. The time item indicates the date and time information when the position of the unloading dump truck Dt was calculated. The borrow pit ID item indicates the beacon ID information (terminal_tag) of the backhoe Bh that loaded the soil on the dump truck Dt at the borrow pit Pd. These position, date and time, and borrow pit ID are automatically obtained from the unloading position information described above. Furthermore, the soil quality name item indicates the name of the soil quality of the soil unloaded by the dump truck Dt at the embankment Pm. As described above, this soil quality name is automatically obtained based on the unloading position information and the soil quality master information shown in Figure 4 above.

The compaction information file DF9 in FIG. 2 stores compaction information (position information of the vibrating roller Rv, date and time information when the position was calculated, compaction count information, CCV value information, etc.) sent from the compaction information processing system of the vibrating roller Rv at the embankment site Pm to the cloud server Sv. Note that the position information of the vibrating roller Rv is indicated, for example, by latitude and longitude.

The embankment information file DF10 stores embankment information indicating the soil quality of each embankment location of the embankment site Pm. This embankment site information is created by the CPU 11 based on the above-mentioned unloaded soil quality information and the above-mentioned rolling compaction information. That is, the CPU 11 generates a plurality of voxel blocks (not shown in FIG. 2) arranged in a mesh shape by dividing the entire embankment site Pm into a plurality of cubes that can be set to predetermined dimensions, and determines the soil quality of each of the plurality of voxel blocks based on the above-mentioned unloaded soil quality information and the above-mentioned rolling compaction information to create embankment site information (three-dimensional construction information of the embankment site) and store it in the secondary storage device 14. The plurality of voxel blocks of the embankment site Pd correspond to the mesh blocks described in the above-mentioned Patent Document 1. An example of a method for determining the soil quality of each of these voxel blocks will be described later.

Figure 6 shows an example of embankment site information. The X and Y items indicate the central coordinates of the voxel block, H indicates the elevation of the voxel block, and the planned elevation is the planned elevation. The units for the central X and Y coordinates, elevation, and planned elevation are "m." The construction date and time items are unloading date and time information, and are shown in year, month, day (YYYYMMDD format) and hour, minute, and second (HHMMSS format), respectively. These are automatically obtained from the unloading soil information.

The layer thickness of the item indicates the thickness of the voxel block, the layer number of the item indicates the layer number of the voxel block, and the size of the item indicates the dimensions of the voxel block. The specified number of times is the specified value for the number of times of compaction. The moisture content of the soil S is used to determine the required number of times of compaction. A test construction is carried out in advance to confirm the allowable range of the moisture content of the soil S that exhibits the specified performance, and it is confirmed that the moisture content of the soil S is within the allowable range when the soil S is excavated by the backhoe Bh. The amount of moisture that evaporates from the soil S when the dump truck Dt transports it is ignored because it is a small amount. The number of times of compaction of the item is the number of times of compaction performed by the vibrating roller Rv. The temperature of the item is the surface temperature of the piled soil, and is expressed in "℃". The 5m mesh vertical position of the item indicates the vertical position of the 5m voxel block, and the 5m mesh horizontal position of the item indicates the horizontal position of the 5m voxel block. These are automatically obtained from the compaction information.

The soil type information of an item is the soil type name automatically obtained from the unloaded soil type information (i.e., the soil type master information shown in Figure 4). The soil mixing ratio of an item is the mixing ratio of soil and sand of different soil types contained in one voxel block. The mixing ratio is shown as the input ratio and the unit is "%". When multiple soil types are mixed, the soil types defined in the soil type master information in Figure 4 are separated by a full-width comma ",", such as "sand, clayey soil, first borrow pit". This soil mixing ratio is automatically determined and obtained by combining the unloaded soil type information and compaction information described above.

Next, an example of a method for determining the soil quality of each of the multiple voxel blocks created by dividing the entire area of the above-mentioned embankment site Pm into a mesh will be explained with reference to Figures 2 and 7 to 12.

First, in this embodiment, the CPU 11 (see FIG. 2) divides the entire area of the embankment Pm into a number of cubes whose dimensions can be set in advance in the data, thereby generating a number of voxel blocks arranged in a mesh pattern. The voxel blocks are all uniform in shape (at this stage, changes in height due to compaction are ignored). The size of each voxel block is, for example, based on the load of soil and sand equivalent to about one 10-ton dump truck, and is 5 m x 5 m x 0.3 m (width x depth x height). The data of the voxel blocks is stored in the secondary storage device 14 as point cloud data. The dimensions (width x depth x height) and number of voxel blocks can be set and changed, for example, by accessing and logging in to the embankment construction management site via a personal computer in the office Fm of the embankment Pm.

Here, FIG. 7(a) is a plan view of the main part of the embankment used in the compaction management. In the compaction management, the entire embankment Pm is managed by managing the compaction information (number of compactions, CCV value, etc.) for each of the multiple compaction blocks RB arranged in a mesh pattern. Each compaction block RB in the compaction management is made up of multiple cubes that can be set to predetermined dimensions, and the planar dimensions of each are, for example, 50 cm x 50 cm. This is because the width of a typical vibrating roller Rv is about 1.0 to 1.5 m, and accurate management is not possible with the width of the voxel block mentioned above. The mesh origin Ps is found from the minimum value of the mutually orthogonal X-axis and Y-axis.

Figure 7 (b) is a plan view of the main part of the embankment field for compaction management in Figure 7 (a), in which voxel blocks are arranged in the plane. The symbol VB indicates a voxel block. As described above, the planar dimensions of the voxel block VB are, for example, 5m x 5m, so when generating the voxel block VB, a 5m area from the mesh origin Ps is defined as one voxel block VB. In this case, the soil type is set for each voxel block VB. Therefore, the soil type of multiple compaction blocks RB in the same voxel block VB is the same. However, as described above, the compaction information is set for each compaction block RB, so the number of compactions and CCV values may differ even for compaction blocks RB in the same voxel block VB. The compaction block RB and the number of compactions are recorded as background data and do not affect the determination of the soil type of the voxel block VB.

Then, the soil type of each voxel block VB is determined. When determining the soil type of a voxel block VB, the soil type of the soil unloaded into the voxel block VB can be determined as the soil type of the voxel block VB as it is. However, soil S from a different borrow pit Pd or soil S loaded by a different backhoe Bh may be unloaded into one voxel block VB or into adjacent voxel blocks VB. In reality, the unloaded soil often does not remain at the unloading position but spreads to the surrounding area, resulting in the soil being mixed together. Therefore, in this embodiment, assuming that the unloaded soil spreads from the unloading position to the surrounding area, the soil type of each voxel block VB is determined as follows, mainly based on the unloading soil information described above.

Figure 8 (a) is a schematic plan view of a portion of a voxel block in an embankment. First, the center of gravity Pc in the plane of each voxel block VB (VBa to VBi) is found. The center of gravity Pc is the center point in the plane of each voxel block. Next, the distances from the unloading position Pu to the center of gravity Pc of each of the eight surrounding voxel blocks VBa to VBd, VBf to VBh, which are adjacent to the outer peripheral face or edge of the voxel block VBe and are in the same layer as the voxel block VBe, are calculated.

Next, a weighting value is calculated based on the distance between the unloading position Pu and the center of gravity position Pc of each voxel block VBa to VBi. The weighting value indicates how much of the unloaded soil and sand has been mixed into each voxel block VBa to VBi, and is calculated by calculating the distance ratio (1/(distance/total distance)) and taking the reciprocal of that value.

Figure 8 (b) shows an example of the weighting value for each voxel block. It is assumed that the unloaded soil and sand spreads to each voxel block VBa to VBi in proportion to the inverse of the distance from the unloading position Pu. Therefore, the weighting value of the voxel block VBe at the unloading position Pu is the highest (e.g., 52.90), and the weighting value of the voxel block VBg farthest from the unloading position Pu is the smallest (e.g., 5.81). Note that the weighting value is rounded to two decimal places.

Next, the ratio of the weighting value for each soil type is calculated using the weighting values calculated as above (in the example of Figure 8(a), the ratio is calculated as the sum of the weighting values for each soil type relative to the sum of the weighting values for the central voxel block VB and its surrounding eight voxel blocks VB (total of nine)), to calculate the soil/sand mixing ratio for each soil type in each voxel block VBa-VBi, and the soil type with the highest mixing ratio is determined to be the soil type of that voxel block VBa-VBi. Each soil type and its mixing ratio are stored as background data for each voxel block VBa-VBi.

Figure 9 is a schematic plan view of a portion of a voxel block in an embankment to explain an example of how to determine the soil type of a voxel block. In Figure 9, the symbols Sa to Sd in parentheses next to each unloading position Pu indicate the soil type. To make the drawing easier to read, different hatching is used for each soil type Sa to Sd. In Figure 9, for ease of explanation, ten unloading positions Pu are shown for each voxel block VBa, VBb, VBd, and VBe, but in reality there are only about two to four. In Figure 9, for ease of explanation, the weighting described above is not taken into account, and soil types Sa to Sd are determined based only on the number of unloading positions Pu.

As shown in the upper part of Figure 9, in voxel block VBa, soil type Sa is 70% and soil type Sb is 30%, so as shown in the lower part of Figure 9, voxel block VBa is determined to be soil type Sa. Also, as shown in the upper part of Figure 9, in voxel block VBb, soil type Sc is 100%, so as shown in the lower part of Figure 9, voxel block VBb is determined to be soil type Sc. Also, as shown in the upper part of Figure 9, in voxel block VBd, soil type Sa is 10%, soil type Sb is 80%, and soil type Sc is 10%, so as shown in the lower part of Figure 9, voxel block VBd is determined to be soil type Sb. Also, as shown in the upper part of Figure 9, in voxel block VBe, soil type Sa is 10%, soil type Sb is 20%, soil type Sc is 10%, and soil type Sd is 60%, so as shown in the lower part of Figure 9, voxel block VBe is determined to be soil type Sd.

Figure 10 is an explanatory diagram for explaining an example of a soil type determination method when the mixing ratios of different soil types are equal in the soil type determination of a voxel block. When the mixing ratios of different soil types Sa and Sb are equal in one voxel block VB, the soil type is determined to be Sb, which is the soil type of the soil that was unloaded later. For example, if soil type Sa was unloaded at 10:10 as shown in the upper part of Figure 10, and soil type Sb was unloaded at 14:30 as shown in the middle part of Figure 10, then voxel block VB is determined to be soil type Sb, as shown in the lower part of Figure 10.

In this embodiment, the soil quality of each voxel block VB is determined on the assumption that the soil S unloaded from the dump truck Dt at the embankment site Pm spreads from the unloading position Pu to the surrounding area, thereby improving the reliability of the soil quality determination and therefore the reliability of the embankment site information. Therefore, the traceability of the embankment site Pm can be improved.

However, in the above soil type determination, there may be cases where blank voxel blocks VB for which soil type determination has not been performed in the data (i.e., soil type information has not been stored) are generated due to the topography of the embankment site Pm, etc. Therefore, in this embodiment, when the above unloading soil type information and the above rolling compaction information are combined to create the embankment site information, the rolling compaction information obtained by actually performing the rolling compaction work is used to find blank voxel blocks VB for which soil type determination has not been performed in the data, and the soil type of the blank voxel blocks VB is determined.

Figure 11 is an explanatory diagram for explaining an example of soil type determination of a blank voxel block. In this Figure 11, a dump truck Dt enters the voxel block VB on the upper left side and unloads, but a blank voxel block VBm is generated because unloading is not performed directly on the voxel block VBm on the upper right side of Figure 11. When determining the soil type of a blank voxel block VBm, as shown in the lower part of Figure 11, the soil type of 10 unloading positions Pu within a reference circle RS (a circle shown by a dashed line in the lower part of Figure 11) from the center of gravity position Pc of the blank voxel block VBm is referenced, and the soil type of the blank voxel block VBm is determined to be the soil type of the blank voxel block VBm that has the most soil type in the cumulative total of the 10 points. Here, six points of the unloading position Pu are soil type Sd, and four points of the unloading position Pu are soil type Sc, so the soil type of the blank voxel block VBm is determined to be soil type Sd. In reality, soil and sand in an empty voxel block VBm where no direct unloading takes place flows in from nearby locations, and the soil quality of soil unloaded at closer locations is greater. Therefore, by determining the soil quality of the empty voxel block VBm as the soil quality of the empty voxel block VBm that is most prevalent among the unloading locations Pu closest to the empty voxel block VBm, the soil quality of the empty voxel block VBm can be set to a more realistic soil quality, allowing for more accurate management of the embankment. In addition, by specifying a reference circle RS centered on the center of gravity Pc of the blank voxel block VB when selecting the reference soil quality, the selection range can be narrowed down, thereby improving the calculation processing speed.

As another method, the number of unloading positions Pu to be referenced (reference points) is not limited to 10 points, but can be specified by making the reference circle RS centered on the center of gravity position Pc of the blank voxel block VBm larger or smaller until the reference point number is reached, and the soil type with the most points within the reference circle RS when the reference point number is reached can be determined to be the soil type of the blank voxel block VBm.

As another method, the size of the reference circle RS may be specified from the beginning, and the soil type with the highest score within that reference circle RS may be determined to be the soil type of the blank voxel block VBm. In this case, it may be considered that the soil type of the blank voxel block VBm is only affected up to the voxel block VB immediately adjacent to the blank voxel block VBm, so it is desirable that the diameter of the reference circle RS does not include the unloading position Pu of the voxel block VB adjacent to the blank voxel block VBm. In this example, it is desirable that the diameter of the reference circle RS does not exceed, for example, 7.5 m.

In this manner, in this embodiment, embankment site information (see FIG. 6) is created that stores detailed information about the soil quality in multiple voxel blocks VB throughout the entire embankment site Pm. The state of the embankment site created using this embankment site information can be viewed in three dimensions on a display screen such as the monitor M (see FIG. 1).

Figure 12 is a three-dimensional image of the embankment displayed on the display screen based on the embankment information, and Figures 13 (a) to (d) are three-dimensional images showing a portion of the voxel block in Figure 12.

As shown in FIG. 12, the state of the embankment site Pm is displayed three-dimensionally on the display screen. On the display screen, the shapes of the voxel blocks VB are all uniform. However, when they are displayed on the display screen, the height (shape) of the voxel blocks VB may be corrected to reflect changes due to compaction.

In addition, on the display screen, each voxel block VB is displayed in a different color depending on the soil type, for example. This makes it possible to display the soil condition of the embankment site Pm in a more easily understandable manner. The color of the voxel block VB may represent the soil mixture ratio by the transmittance. Note that in Figures 12 and 13, the color of the voxel block VB is shown by hatching.

In this way, in this embodiment, a simplified image of the embankment site Pm is displayed on a display screen such as a monitor M. This makes it easier to determine the soil information of the embankment site Pm. This makes it possible to reduce or prevent mistakes in embankment work during construction, and to improve the efficiency of work to trace the construction quality and construction status history after construction of the embankment.

In this embodiment, each voxel block VB is displayed on the display screen in a different color according to the soil type, but this is not limited to a color-coded display, and may be, for example, a shaded display. Specifically, a grid pattern may be displayed with different spacing, or a set of horizontal lines, vertical lines, or diagonal lines may be displayed with different spacing, or a set of symbols such as dots and circles may be displayed with different density or size. In other words, it is sufficient that each voxel block VB is displayed on the display screen in a different color or shaded according to the soil type.

The name and mixture ratio of the representative soil type for each voxel block VB can also be displayed on the display screen using a pop-up method or the like. As shown in FIG. 13(a), only a group of voxel blocks VB can be taken out and displayed, or as shown in FIGS. 13(b) and (c), some voxel blocks VB can be removed from a group of voxel blocks VB to display the internal voxel blocks VB, or each voxel block VB can be displayed in cross section in the width, depth, and height directions. As shown in FIG. 13(c), the inside of a group of voxel blocks VB can be seen through to display only voxel blocks VB of a specified soil type (for example, soil type Sc). Furthermore, the embankment condition at a specified date and time can be displayed by characters or the like for each voxel block VB.

Here, in embankment construction, soil and sand are brought in from multiple borrow pits Pd, and the borrow pits may change depending on the schedule, and the amount of information is large and complicated, so manual information input often does not record information such as which location in which borrow pit Pd the soil was shipped from, or how much soil and sand was used in which area. For this reason, even if ground swelling occurs due to impurities contained in the embankment (cement-based inclusions, slag, etc.), or ground subsidence occurs due to insufficient rolling or a decrease in the clay compaction rate, it is often not possible to identify the cause of such defects. Furthermore, even if the cause of the defect can be identified, investigations and preventive measures cannot be taken unless it is known where the soil and sand is being used.

In contrast, in this embodiment, a huge amount of information is stored in a linked state for each of the multiple voxel blocks VB that make up the embankment site Pm in the data, such as how much soil was unloaded at which location in which borrow pit, how many times it was compacted, and the CCV value at which it was compacted, and specific information can be retrieved from this huge amount of information in a short time by searching through it with relatively simple operations.

As a result, information on soil and sand at a given location in the embankment site Pm can be examined retrospectively with relatively simple operations, making it easy to identify the cause of any problems that may occur, such as swelling or subsidence of the ground. In addition, it is also possible to determine where the soil and sand that caused the problem was used, making it possible to investigate and take preventive measures in other locations where the soil and sand that caused the problem is used before a problem occurs.

The invention made by the inventor has been specifically described above based on the embodiments, but the embodiments disclosed in this specification are illustrative in all respects and are not limited to the disclosed technology. In other words, the technical scope of the present invention should not be interpreted restrictively based on the explanation in the above embodiments, but should be interpreted strictly according to the description of the claims, and includes technologies equivalent to the technologies described in the claims and all modifications that do not deviate from the gist of the claims.

For example, the backhoe Bh and vibratory roller Rv do not necessarily need to be ICT construction machines, and may be ones where all operations are performed by a driver as in the past. However, even in this case, the backhoe Bh needs to be equipped with a beacon and periodically transmit beacon ID information.

In addition, it is not necessary for all of the information files DF1 to DF10 to be stored in advance on the server Sv. For example, the soil master information file DF2 may be stored in the beacon of the backhoe Bh, and the dump truck Dt may receive it together with the beacon ID information and transmit it to the cloud server Sv.

The above explanation shows the application of the embankment construction management support system of the present invention to embankment construction for laying the foundations of buildings such as housing sites and roads, but it can also be applied to embankment construction for creating parks, golf courses, etc., for example.

10 Communication interface 11 CPU
12 ROM
13 RAM
14 Secondary storage device SS Embankment construction management support system Sp Positioning satellite Pd Borrow pit Pm Embankment pit Fd, Fm Office M Monitor P Printer Bh Backhoe Dt Dump truck Rv Vibration roller S Soil Sa to Sd Soil quality Sv Cloud server Sv1 Server Sv2 Access server Sv3 Server PF1 Embankment construction management program file PF2 Embankment pit information application program file DF1 Setting file DF2 Soil quality master information file DF3 Stored soil information file DF4 Backhoe construction instruction information DF5 Vehicle position information file DF6 Loading position information file DF7 Unloading position information file DF8 Unloading soil quality information file DF9 Compaction information file DF10 Embankment pit information file RB Compaction block VB, VBa to VBi Voxel block Ps Mesh origin Pc Center of gravity position Pu Unloading position Rs Reference circle

Claims (8)

1. An embankment construction management support system for managing and supporting embankment construction, comprising: embankment materials excavated by a loading machine at a borrow pit are loaded onto a transport vehicle and transported to an embankment site; the embankment materials are unloaded at a filling location at the embankment site and compacted by a compactor to form an embankment; and the embankment construction management support system displays on a display unit an embankment site during and after construction in a visible state based on embankment site information created based on information acquired at the borrow pit and the embankment site and transmitted to a server,
The loading machine includes a transmission terminal that transmits unique information of the loading machine,
The transport vehicle includes a vehicle information processing system that transmits information about the transport vehicle to the server,
The vehicle information processing system includes:
a function of calculating a position of the transport vehicle and transmitting vehicle position information including the calculated position information and date and time information when the calculated position information is calculated to the server;
a function of acquiring unique information of the loader transmitted from the transmitting terminal, and transmitting to the server loading position information including position information of the transport vehicle on which the embankment material has been loaded by the loader, date and time information on when the position information was calculated, unique information of the transport vehicle on which the embankment material has been loaded by the loader, and unique information of the loader;
a function of detecting the unloading of the transport vehicle and transmitting to the server unloading position information including position information of the transport vehicle that unloaded the load, date and time information when the position information was calculated, unique information of the transport vehicle that unloaded the load, and unique information of the loading machine that loaded the embankment material onto the transport vehicle that unloaded the load;
Equipped with
The rolling machine includes a rolling information processing system that transmits information about the rolling machine to the server,
The rolling information processing system includes:
a function of calculating the position of the roller compactor and transmitting to the server roller compaction information including the position information, date and time information when the position information was calculated, the number of roller compactions calculated based on the position information, and an acceleration response value created based on the measurement value of an accelerometer provided on the roller compactor;
Equipped with
The server includes a storage unit that stores information and an information processing unit that processes the information,
The storage unit has soil master information stored in advance, the soil master information indicating unique information of the loading machine and information on the soil to be excavated by the loading machine in a predetermined period of time,
The information processing unit includes:
A function for generating a plurality of voxel blocks arranged in a mesh shape by dividing the embankment into a plurality of cubes that can be set to a predetermined dimension;
A function of creating unloading soil information including unloading position information of the transport vehicle, date and time information when the position information was calculated, and soil quality information of the unloaded embankment material based on the unloading position information and the soil quality master information, and storing the information in the storage unit;
a function of determining the soil quality of each of the plurality of voxel blocks based on the unloading soil quality information and the rolling compaction information, creating the embankment site information, and storing the information in the storage unit;
A function of displaying the plurality of voxel blocks of the embankment site information on the display unit in a visible state;
having
a soil type determination unit that determines the soil type of each of the plurality of voxel blocks based on the soil type determination information and the compaction information; and a step of determining the soil type of the embankment material of each of the plurality of voxel blocks based on the soil type determination information and the compaction information. The method of the present invention provides an embankment construction management support system that determines the soil type of each of the plurality of voxel blocks based on the soil type of the embankment material of each of the plurality of voxel blocks based on the soil type of the embankment material of each of the plurality of voxel blocks. The embankment construction management support system according to claim 1, characterized in that in calculating the mixing ratio of the embankment material of each soil type in each voxel block, a weighting value indicating how much of the unloaded embankment material is mixed into each voxel block based on the distance is calculated from the reciprocal of the ratio of the distance from the unloading position to the center of gravity position of each voxel block, and the mixing ratio of the embankment material of each soil type in each voxel block is calculated by calculating the ratio of the weighting value of each soil type using the weighting value. The embankment construction management support system according to claim 1 or 2, characterized in that the weighting value is calculated for the voxel block that contains the unloading position and for the surrounding voxel blocks that are in the same layer as the voxel block and are in contact with the outer faces or edges of the voxel block. The embankment construction management support system according to any one of claims 1 to 3, characterized in that each of the plurality of voxel blocks is identified according to soil type and displayed on the display unit. The embankment construction management support system according to claim 4, characterized in that the identification of the plurality of voxel blocks is displayed by expressing the mixture ratio of the embankment material of each of the plurality of voxel blocks by light transmittance. The embankment construction management support system according to any one of claims 1 to 5, characterized in that textual information on the soil type and mixture ratio of each of the plurality of voxel blocks can be freely displayed on the display unit. The embankment construction management support system according to any one of claims 1 to 6, characterized in that, in generating the plurality of voxel blocks, the shapes of the plurality of voxel blocks are made uniform. The embankment construction management support system according to any one of claims 1 to 7, characterized in that, in displaying the plurality of voxel blocks, the height of the voxel blocks is displayed on the display unit in a shape that corresponds to the change due to compaction.

Images