CN215639587U - Deep foundation pit monitoring device - Google Patents

Abstract

The embodiment of the application provides a deep basal pit monitoring devices, includes: the real-time differential positioning module comprises at least one base station component and a plurality of mobile station components, the mobile station components are respectively installed at monitoring points of the deep foundation pit, the base station component is used for receiving electric signals sent by the mobile station components and satellite signals sent by a satellite, and first displacement data of the deep foundation pit is obtained by utilizing a differential technology; the laser ranging module comprises a target and a laser range finder, the target is arranged at a monitoring point, laser of the laser range finder is shot on the target, and the laser range finder is used for acquiring second displacement data from the laser range finder to the target; and the communication module is respectively connected with the real-time differential positioning module, the laser ranging module and the external equipment, and is used for sending the first displacement data and the second displacement data to the external equipment. Install above-mentioned device at deep basal pit, can real-time supervision deep basal pit's displacement data, use manpower sparingly, material resources.

Description

Deep foundation pit monitoring device

Technical Field

The application relates to the technical field of engineering monitoring, in particular to a deep foundation pit monitoring device.

Background

The deep foundation pit refers to a project with an excavation depth of more than 5 meters, or a depth of less than 5 meters, but with particularly complicated geological conditions, surrounding environment and underground pipelines. In the current deep foundation pit monitoring, the main items to be measured are vertical displacement, horizontal displacement, deep horizontal displacement, anchor rod or support axial force, underground water level and the like; regarding the monitoring mode of vertical displacement and horizontal displacement, currently, a drilling hole is mainly adopted to bury a position monitoring point, a measurement professional erects instruments such as a total station, a precision level or an inclinometer, and the like, manually copies the data at various points, then introduces the copied data into a computer system, and reports the data to relevant units after calculation and analysis; the method needs to invest more labor cost and time cost, and the measuring personnel work along the edge of the foundation pit, so that the personal safety risk is higher, the measured value cannot be calculated in the first time, the abnormal change of the foundation pit engineering in the construction process cannot be reflected in time, and if the risk development speed exceeds a certain time, the foundation pit has certain danger; although some enterprises develop automatic monitoring equipment, such as an unmanned aerial vehicle technology for monitoring a foundation pit based on a Real-Time Kinematic (RTK) technology, the unmanned aerial vehicle technology monitors the foundation pit displacement by using coordinate system data, and the defects mainly include two aspects, namely that the frequency of acquiring the foundation pit data by the unmanned aerial vehicle is still in an artificial setting state and cannot meet the requirement of Real-Time data feedback, and the well-known RTK measurement technology can basically reach centimeter level, so that the error is relatively large and the monitoring precision requirement cannot be met when the millimeter level precision is required for monitoring the foundation pit; some enterprises also use the displacement sensor to measure the relative displacement size of the foundation pit, the size measured by the displacement sensor is the relative displacement size, the displacement condition of the deep foundation pit is quite complex, the displacement possibly exists in the point A and the point B at the same time, the related displacement line is long, and the displacement surface is wide, so that the real condition of the foundation pit deformation is difficult to reflect by adopting the displacement sensor to collect the measurement data of the foundation pit.

SUMMERY OF THE UTILITY MODEL

An object of the embodiment of the application is to provide a deep basal pit monitoring devices, can accurately acquire the displacement of deep basal pit.

The deep basal pit monitoring devices of the embodiment of the application include: the real-time differential positioning module comprises at least one base station component and a plurality of mobile station components, the mobile station components are respectively installed at monitoring points of the deep foundation pit, and the base station component is used for receiving electric signals sent by the mobile station components and satellite signals sent by satellites and acquiring first displacement data of the deep foundation pit by utilizing a differential technology;

the laser ranging module comprises a target and a laser range finder, the target is arranged at the monitoring point, laser of the laser range finder is shot on the target, and the laser range finder is used for acquiring second displacement data from the laser range finder to the target;

the communication module is respectively connected with the real-time differential positioning module, the laser ranging module and external equipment, and is used for sending the first displacement data and the second displacement data to the external equipment.

In the implementation process, the real-time differential positioning module calculates the coordinate of the position of the mobile station component through a carrier differential phase technology, and can calculate displacement data according to the coordinate; the laser range finder module includes laser range finder and target, the target is installed at the monitoring point, laser range finder's laser is beaten on the target of monitoring point, when the displacement takes place for the monitoring point, the target also can be displaced, thereby laser range finder changes to the distance of target, can obtain the second displacement data of taking out the deep basal pit according to the value that changes, communication module respectively with real-time difference orientation module, laser range finder module and external equipment are connected, communication module can send the data that real-time difference orientation module and laser range finder module acquireed to external equipment, make external equipment acquire accurate deep basal pit displacement. Install real-time difference orientation module and laser rangefinder module respectively at deep basal pit, cooperate communication module again, can save a large amount of manual operations, real-time difference orientation module and laser rangefinder module also can real-time feedback data. The external equipment receives the data of the differential positioning module and the laser ranging module at the same time, and the precision of the data of the laser ranging module can compensate errors generated by the differential positioning module.

Further, the apparatus further comprises: the deep horizontal displacement monitoring module is connected with the communication module and is used for monitoring the deep horizontal displacement of the deep foundation pit.

In the above-mentioned realization process, the device still includes deep horizontal displacement monitoring module, and deep basal pit's displacement is not only taken place on the surface, through setting up deep horizontal displacement monitoring module, can acquire deep basal pit's horizontal displacement to the realization is to deep basal pit's comprehensive monitoring.

Further, the apparatus further comprises: the anchor rod axial force monitoring module is installed on the anchor rod and connected with the communication module, and the anchor rod axial force monitoring module is used for monitoring the axial force of the anchor rod.

In the implementation process, the device further comprises an anchor rod axial force monitoring module, the axial force of the anchor rod is related to the stability of the deep foundation pit, and based on the implementation mode, comprehensive monitoring on the deep foundation pit can be achieved, so that the safety of operating personnel of the deep foundation pit is guaranteed.

Further, the apparatus further comprises: and the water level monitoring module is connected with the communication module and is used for monitoring the liquid level height of the underground water level in the precipitation well or the water level observation well.

In the above-mentioned realization process, the ground water level liquid level height in precipitation well or water level observation well can be acquireed to water level monitoring module to ground water level liquid level height in precipitation well or water level observation well sends external equipment to through communication module, based on above-mentioned embodiment, can realize effectively that the monitoring to ground water level liquid level height in precipitation well or water level observation well.

Furthermore, the deep horizontal displacement monitoring module comprises an inclinometer pipe, a plurality of inclinometer sensors, an RS485 bus, a connecting rope, a guide pulley and a power locomotive;

the inclination measuring pipe is arranged in an inclination measuring hole formed in the deep foundation pit;

the guide pulley is arranged on the side surface of the inclinometer hole of the deep foundation pit;

the plurality of inclination measuring sensors are positioned in the inclination measuring pipe and are sequentially connected with the RS485 bus through the connecting rope;

a processor module is arranged in the power locomotive and is connected with the RS485 bus;

and the first end of the connecting rope bypasses the guide pulley to be connected with the power locomotive.

Further, the anchor rod axial force monitoring module comprises a vibrating wire type anchor rod dynamometer and a reading and writing unit, the vibrating wire type anchor rod dynamometer is connected with the reading and writing unit, and the reading and writing unit is connected with the communication module.

In the implementation process, the axial force of the anchor rod monitored by the vibrating string type anchor rod dynamometer can be transmitted to external equipment through the reading and writing unit and the communication module, the manual copying step is omitted, manpower and material resources are saved, and the safety of operators is improved.

Further, the water level monitoring module includes: the device comprises a winder, a communication wire, a water resistance probe, a control module and a measuring wheel;

the control module is respectively connected with the winder, the measuring wheel and the communication module;

the winder is fixed at the pithead of the deep foundation pit, the first end of the communication wire is connected with the water resistance probe, and the second end of the communication wire bypasses the winder to be connected with the control module;

the water resistance probe is positioned on the water level in the precipitation well or the water level observation well, and sends a rotation stopping signal when contacting the water level, wherein the rotation stopping signal is used for enabling the control module to control the winder to stop rotating;

the measuring wheel is arranged on the winder and used for acquiring the telescopic length of the communication lead and sending the telescopic length to the control module.

In the above-mentioned realization in-process, the water resistance probe is used for responding to the water level, and when the water resistance probe was located the surface of water, the water resistance probe can send signal to control module, and control module control spooler stop rotation, when the water level descends, the water resistance probe drove the wire and descends, until the water resistance probe contacts the surface of water, the measuring wheel is installed on the spooler, and control module can acquire the flexible length of the communication wire that the measuring wheel surveyed, can acquire the water level height of deep basal pit based on flexible length. Based on the embodiment, the water level height of the deep foundation pit can be rapidly acquired.

Further, the device also comprises an alarm module, and the alarm module is connected with the communication module.

In the implementation process, the external device and the communication module process and analyze the data of all the monitoring modules, if the data are abnormal, a command is sent to the communication module, and the communication module further sends the data to the alarm module to enable the alarm module to give an alarm. According to the embodiment, the safety of the operator can be ensured.

Furthermore, the device also comprises a display module, wherein the display module is respectively connected with the real-time differential positioning module and the laser ranging module and is used for displaying the first displacement data and the second displacement data.

In the implementation process, the display module can display the first displacement data and the second displacement data, and workers of the deep foundation pit can monitor the displacement condition of the deep foundation pit in real time.

Furthermore, an audible and visual alarm is arranged in the power locomotive, and the processor module is also used for judging whether the deep horizontal displacement of the deep foundation pit exceeds a preset threshold value; the audible and visual alarm is connected with the processor module and used for receiving the instruction of the processor module and giving an alarm when the deep horizontal displacement of the deep foundation pit exceeds a preset threshold value.

In the implementation process, a processor module is arranged in the power locomotive, the processor module can rapidly receive data of the plurality of inclination measuring sensors through an RS485 bus, the deep horizontal displacement value of the deep foundation pit is calculated, whether the deep horizontal displacement exceeds a preset threshold value or not is judged, if the deep horizontal displacement exceeds the preset threshold value, the situation that the deep foundation pit has collapse danger is shown, the processor module sends an instruction to an audible and visual alarm at the moment, the audible and visual alarm gives an alarm, and workers on the site can pay attention to safety.

Additional features and advantages of the disclosure will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by the practice of the above-described techniques.

In order to make the aforementioned objects, features and advantages of the present application more comprehensible, preferred embodiments accompanied with figures are described in detail below.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments of the present application will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and that those skilled in the art can also obtain other related drawings based on the drawings without inventive efforts.

Fig. 1 is a schematic structural component view of a deep foundation pit monitoring device provided in an embodiment of the present application;

fig. 2 is a schematic structural diagram of a real-time differential positioning module according to an embodiment of the present disclosure;

fig. 3 is a schematic view of installation positions of modules of the deep foundation pit monitoring device provided in the embodiment of the present application;

fig. 4 is a schematic structural component view of another deep foundation pit monitoring device provided in the embodiment of the present application;

fig. 5 is a schematic structural diagram of a deep horizontal displacement monitoring module according to an embodiment of the present disclosure;

fig. 6 is a schematic structural component view of another deep foundation pit monitoring device provided in the embodiment of the present application;

fig. 7 is a schematic structural diagram of a water level monitoring module according to an embodiment of the present application.

Detailed Description

The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures. Meanwhile, in the description of the present application, the terms "first", "second", and the like are used only for distinguishing the description, and are not to be construed as indicating or implying relative importance.

The deep foundation pit refers to a project with an excavation depth of more than 5 meters, or a depth of less than 5 meters, but with particularly complicated geological conditions, surrounding environment and underground pipelines. In the current deep foundation pit monitoring, the main items to be measured are vertical displacement, horizontal displacement, deep horizontal displacement, anchor rod or support axial force and the like; regarding the monitoring mode of vertical displacement and horizontal displacement, currently, a drilling hole is mainly adopted to bury a position monitoring point, a measurement professional erects instruments such as a total station, a precision level or an inclinometer, and the like, manually copies the data at various points, then introduces the copied data into a computer system, and reports the data to relevant units after calculation and analysis; the method needs to invest more labor cost and time cost, and the measuring personnel work along the edge of the foundation pit, so that the personal safety risk is higher, the actual measurement value cannot be calculated in the first time, the abnormal change of the foundation pit engineering in the construction process cannot be reflected in time, and if the risk development speed exceeds a certain time, the foundation pit is in certain danger.

Example 1

With reference to fig. 1 and fig. 2, an embodiment of the present application provides a deep foundation pit monitoring device, including: the real-time differential positioning module 1 comprises at least one base station component 11 and a plurality of mobile station components 12, wherein the mobile station components 12 are respectively installed at monitoring points of a deep foundation pit, the base station component 11 and the mobile station components 12 receive satellite signals transmitted by the same satellite at the same time, and the base station component 11 and the mobile station components 12 are in direct and real-time electric signal communication to obtain a more accurate real-time position of the mobile station after differential correction, so that first displacement data of the deep foundation pit is obtained;

the laser ranging module 2 is used for acquiring second displacement data from the laser ranging instrument to the target, and the laser ranging module 2 comprises the target and the laser ranging instrument, the target is arranged at a monitoring point, laser of the laser ranging instrument is shot on the target;

and the communication module 3 is connected with the real-time differential positioning module 1, the laser ranging module 2 and the external device A respectively, and the communication module 3 is used for sending the first displacement data and the second displacement data to the external device A.

It should be noted that the first displacement data includes horizontal displacement data and vertical displacement data, specifically, the laser ranging module 2 includes a horizontal laser ranging module 21 and a settlement laser ranging module 22, the horizontal laser ranging module 21 is used for measuring the horizontal displacement of the deep foundation pit, and the settlement laser ranging module 22 is used for measuring the settlement displacement of the deep foundation pit.

In the above embodiment, the laser ranging module 2 and the real-time differential positioning module 1 may be connected to the communication module 3 through an information conducting wire, or may be connected to the communication module 3 in a wireless manner.

Furthermore, the laser ranging module 2 positioned on the periphery of the deep foundation pit is arranged 10 meters or more away from the foundation pit displacement monitoring point, so that the situation that the foundation pit displacement drives nearby soil bodies to slide, the peripheral laser range finder moves and a ranging error is caused is avoided.

In GPS measurement, if static, rapid static and dynamic measurement, the centimeter-level precision can be obtained only by resolving afterwards, while RTK is a measurement method capable of obtaining centimeter-level positioning precision in real time in the field, and the appearance of the RTK greatly improves the field operation efficiency.

In the above embodiment, the external device a may be a cloud or a client.

The real-time differential positioning module 1 calculates the coordinates of the position of the mobile station component 12 based on the carrier differential phase technology, and can calculate displacement data according to the coordinates; the laser range finder module includes laser range finder and target, the target is installed at the monitoring point, laser range finder's laser is beaten on the target of monitoring point, when the displacement takes place for the monitoring point, the target also can displace, thereby laser range finder changes to the distance of target, can obtain the second displacement data of taking out the deep basal pit according to the value that changes, communication module 3 respectively with real-time difference orientation module 1, laser range finder module 2, external equipment A is connected, communication module 3 can send external equipment A with the data that real-time difference orientation module 1 and laser range finder module 2 acquireed, make external equipment A acquire accurate deep basal pit displacement. Install real-time difference orientation module 1 and laser rangefinder module 2 respectively at the deep basal pit, cooperate communication module 3 again, can save a large amount of manual operations, real-time difference orientation module and laser rangefinder module 2 also can real-time feedback data. The external equipment A receives the data of the differential positioning module and the laser ranging module 2 at the same time, and the precision of the data of the laser ranging module 2 can make up for errors generated by the differential positioning module.

Fig. 3 is a schematic view of installation of each module in a deep foundation pit in the embodiment of the present application. Wherein, laser ranging module 2 installs respectively around the deep basal pit, and monitoring point 23 is decided according to horizontal laser ranging module 21 and subsides laser ranging module 22's position.

Referring to fig. 4, in one possible embodiment, the apparatus further comprises: the deep horizontal displacement monitoring module 4, the deep horizontal displacement monitoring module 4 is connected with the communication module 3, and the deep horizontal displacement monitoring module 4 is used for monitoring the deep horizontal displacement of the deep foundation pit.

Through setting up deep horizontal displacement monitoring module 4, can acquire deep horizontal displacement of deep basal pit to the realization is to deep basal pit's comprehensive monitoring.

Referring to fig. 5, in one possible embodiment, the deep level displacement monitoring module 4 includes a inclinometer tube 41, a plurality of inclinometers 42, an RS485 bus 43, a connecting rope 44, a guide pulley 45, and a power locomotive 46;

the inclinometer pipe 41 is arranged in an inclinometer pipe hole formed in the deep foundation pit;

the guide pulley 45 is arranged on the side surface of the wellhead of the deep foundation pit;

the plurality of inclination measuring sensors 42 are positioned in the inclination measuring pipe 41, and the plurality of inclination measuring sensors 42 are sequentially connected with the RS485 bus 43 through the connecting rope 44;

the first end of the connecting rope 44 is connected to the power car 46 via the guide pulley 45.

In one possible embodiment, each of the plurality of inclinometers 42 is spaced one meter apart.

In the implementation process, the deep horizontal displacement of the deep foundation pit can be accurately monitored.

Referring to fig. 5, a sub-display module 461, a processor module 462, an audible and visual alarm 463, a solar electric board 464, a processor module 462 and an RS485 bus are arranged in the power locomotive 46, the processor module 462 is used for receiving data of the inclinometer sensor 42, the processor module 462 is connected with the audible and visual alarm 463, the audible and visual alarm 463 is used for receiving an instruction of the processor module 462, and when the preset threshold value is exceeded, the processor module sends information to the audible and visual alarm which gives an alarm. The sub-display module 461 is used for displaying the deep horizontal displacement value of the deep foundation pit. The processor module 462 is connected with a driving stepping motor 466 arranged at the bottom and used for controlling the power locomotive 46 to move; the solar panel 464 is connected to each functional device to provide power to each functional device, and in one possible embodiment, the sub-display module and the processor module 462 are integrated together.

For example, two ducts of one power locomotive 46 are respectively connected with the RS485 bus 43 and the connecting rope 44; the RS485 bus 43 is communicated with a processor module 462 in the locomotive through a pore channel to finish data acquisition, a connecting rope 44 is connected with the head of a first section of the inclinometer sensor 42, the advancing and retreating of the power locomotive 46 drives a stepping motor 466 to rotate forward, the power locomotive moves forward, the advancing and retreating drives the stepping motor 466 to rotate backward, the moving amplitude of the power locomotive is 0.5 meter, an MEMS acceleration chip is arranged in the inclinometer sensor, data fluctuation can be generated after the MEMS acceleration chip moves, the fluctuation time is about 30 seconds to 2 minutes, so the movement interval time of the power locomotive can be set to be about 5 minutes, the locomotive advances 0.5 meter, the serially connected inclinometer sensor is driven to move upwards by 0.5 meter, data is acquired after 5 minutes, then the locomotive is started and retreated by 0.5 meter, the serially connected inclinometer sensor is driven to move downwards by 0.5 meter, data is acquired after 5 minutes, the length of the inclinometer sensor is 1 meter, the head-tail connection interval is 1 meter, the processor module 462 can also be connected with the communication module 3 of the whole device by the dynamic traction amplitude of 0.5 meter to meet the data acquisition requirement of the height interval of 0.5 meter required by the specification, an independent sub-communication module 465 can also be arranged in the locomotive, the independent sub-communication module 465 and the processor module 462 are further arranged, and the data of the inclination measuring sensor 42 and/or the deep horizontal displacement data of the deep foundation pit are transmitted to the external equipment A by the communication module 3 of the whole device or the independently arranged sub-communication module 465. The power locomotive 46 may also be a simple device with a motor driving a wheel with a circumference of 0.5 m, and the device may drive a serial inclinometer sensor to complete a lifting and lowering movement of 0.5 m. Through the micromotion of 0.5 meter of the electric locomotive, the data acquisition work is finished by matching with the serially connected inclinometer sensor 42 according to a certain time interval, and through the measures, the labor cost and the equipment cost can be greatly saved.

Referring to fig. 6, the device further includes a display module 7, and the display module 7 is connected to the real-time differential positioning module 1 and the laser ranging module 2, respectively, and is configured to display the first displacement data and the second displacement data.

The display module 7 has a data operation function, and judges whether relative displacement occurs according to a preset data analysis program, or revises the RTK data and the laser ranging data according to the calculated relative displacement data, so that the total measurement data approaches a real value or a relatively more accurate measurement value.

The inclination measuring sensor 42 adopts a built-in MEMS triaxial acceleration chip, the head and the tail are respectively provided with 1 group, a microprocessor built in the inclination measuring sensor 42 utilizes X, Y, Z three axial components of the gravity acceleration applied to the chip by an inclination measuring tube to calculate the vertical and horizontal included angles of the inclination measuring sensor, and further calculate the displacement of each measuring point on three coordinate axes.

The device still includes: the anchor rod axial force monitoring module 5 is installed on the anchor rod and connected with the communication module 3, and the anchor rod axial force monitoring module 5 is used for monitoring axial force monitoring data of the anchor rod.

The axial force of the anchor rod is related to the stability of the deep foundation pit, and based on the embodiment, the deep foundation pit can be comprehensively monitored, so that the safety of operating personnel in the deep foundation pit is guaranteed.

The anchor rod axial force monitoring module 5 comprises a vibrating wire type anchor rod dynamometer and a reading and writing unit, the vibrating wire type anchor rod dynamometer is connected with the reading and writing unit, and the reading and writing unit is connected with the communication module 3.

The traditional vibrating wire type anchor rod monitoring dynamometer has complicated data acquisition, needs an operator to acquire and record data of a manual acquisition display instrument at regular time, and then carries out comparison calculation with the data; the scheme is provided with a read-write unit, the read-write unit reads and collects data on a data line of the vibrating wire type anchor rod dynamometer, and the read-write unit is connected with a communication module arranged on the power locomotive or a communication module 3 arranged on the whole device. The whole module has the capability of collecting and sending data. Meanwhile, data collected by the whole module are received by installing upper computer software on the external equipment A, and are compared and analyzed with a set numerical value, if the data exceed the set value, an alarm system is started, an alarm instruction is sent to the communication module 3, and then the communication module 3 sends the alarm instruction to the alarm module 8, so that alarm is realized.

In one possible embodiment, different kinds and levels of alarm commands can be set on the external device a, corresponding to different levels of dangerous situations.

In the implementation process, the axial force of the anchor rod monitored by the vibrating string type anchor rod dynamometer can be transmitted to external equipment through the reading and writing unit and the communication module 3, the manual copying step is omitted, manpower and material resources are saved, and the safety of operators is improved.

In one possible embodiment, the apparatus further comprises: water level monitoring module 6, water level monitoring module 6 is connected with communication module, and water level monitoring module 6 is used for monitoring the ground water level liquid level height in precipitation well or the water level observation well.

In the above-mentioned implementation process, water level monitoring module 6 can monitor the liquid level height of the ground water level in precipitation well or water level observation well to send the liquid level height of the ground water level in precipitation well or water level observation well to external equipment through communication module, based on the above-mentioned embodiment, can realize effectively that the liquid level height of the ground water level in precipitation well or water level observation well monitors.

Referring to fig. 7, in one possible embodiment, the water level monitoring module includes: a fixed bracket 51, a bobbin 52, a communication lead 53, a water resistance probe 54, a data acquisition device 55 and a measuring wheel 56;

the data acquisition device 55 is respectively connected with the bobbin 52, the measuring wheel 56 and the communication module 3;

the winder 52 is fixed at the pithead of the deep foundation pit, the first end of the communication wire 53 is connected with the water resistance probe 54, and the second end bypasses the winder 52 and is connected with the data acquisition device 55; a spring take-up device is provided on the wire winder 52.

The water resistance probe 54 is positioned at the underground water level in the precipitation well or the water level observation well, the water resistance probe 54 sends a rotation stopping signal when contacting the water level, and the rotation stopping signal is used for enabling the data acquisition device 55 to control the winder 52 to stop rotating;

the measuring wheel 56 is arranged on the bobbin 52, the measuring wheel 56 comprises a data acquisition device, the data acquisition device is used for acquiring the telescopic length of the communication wire 53 and sending the telescopic length to the data acquisition device 55, specifically, the data acquisition device acquires the number of rotation turns of the measuring wheel 56 and multiplies the number of turns with the measuring wheel 56, and then the telescopic length of the communication wire 53 can be obtained.

In the implementation process, the water resistance probe 54 is used for sensing the water level, when the water resistance probe 54 is located on the water surface, the water resistance probe 54 can send a signal to the data acquisition device 55, the data acquisition device 55 controls the winder 52 to stop rotating, when the water level descends, the water resistance probe 54 drives the wire to descend until the water resistance probe 54 contacts the water surface, when the water level ascends, the floating ball drives the water resistance probe to ascend with the help of water level buoyancy, the data wire drives the wire to retract with the help of spring tightening device tension, the measuring wheel 56 is installed on the winder 52, the data acquisition device 55 can obtain the telescopic length of the communication wire 53 measured by the measuring wheel 56, and the underground water level in the precipitation well or the water level observation well of the deep foundation pit can be obtained based on the telescopic length. Based on above-mentioned embodiment, can acquire the groundwater level liquid level height in the precipitation well or the water level observation well of deep basal pit fast.

In one possible embodiment, the communication module 3 is one or more of a WIFI module and a bluetooth module.

It should be noted that, in addition to the deep horizontal displacement monitoring module and the water level monitoring module, other modules also have units with data processing capability.

In the implementation process, one or more of the WIFI module and the Bluetooth module can be selected as the communication module 3 in different scenes, so that the information transmission capability of the whole device is improved.

In the above embodiment, the laser ranging module 2 and the real-time differential positioning module may be connected to the communication module 3 through an information conducting wire, or may be connected to the communication module 3 wirelessly.

It should be noted that each of the functional modules respectively connected to the communication module 3 and the display module may be independently connected to the display module 7, and then connected to the communication module 3 through the display module 7. Wherein, the display module also has data processing capability.

The above embodiments are merely examples of the present application and are not intended to limit the scope of the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

Claims (10)

1. The utility model provides a deep basal pit monitoring devices which characterized in that includes:

the real-time differential positioning module comprises at least one base station component and a plurality of mobile station components, the mobile station components are respectively installed at monitoring points of the deep foundation pit, and the base station component is used for receiving electric signals sent by the mobile station components and satellite signals sent by satellites and acquiring first displacement data of the deep foundation pit by utilizing a differential technology;

the laser ranging module comprises a target and a laser range finder, the target is arranged at the monitoring point, laser of the laser range finder is shot on the target, and the laser range finder is used for acquiring second displacement data from the laser range finder to the target;

the communication module is respectively connected with the real-time differential positioning module, the laser ranging module and external equipment, and is used for sending the first displacement data and the second displacement data to the external equipment.

2. The deep foundation pit monitoring device according to claim 1, wherein the device further comprises: the deep horizontal displacement monitoring module is connected with the communication module and is used for monitoring the deep horizontal displacement of the deep foundation pit.

3. The deep foundation pit monitoring device according to claim 1, wherein the device further comprises: the anchor rod axial force monitoring module is installed on the anchor rod and connected with the communication module, and the anchor rod axial force monitoring module is used for monitoring the axial force of the anchor rod.

4. The deep foundation pit monitoring device according to claim 1, wherein the device further comprises: and the water level monitoring module is connected with the communication module and is used for monitoring the liquid level height of the underground water level in the dewatering well or the water level observation well.

5. The deep foundation pit monitoring device according to claim 2, wherein the deep horizontal displacement monitoring module comprises an inclinometer pipe, a plurality of inclinometer sensors, an RS485 bus, a connecting rope, a guide pulley and a power locomotive;

the inclination measuring pipe is arranged in an inclination measuring hole formed in the deep foundation pit;

the guide pulley is arranged on the side surface of the orifice of the inclination measuring hole of the deep foundation pit;

the plurality of inclination measuring sensors are positioned in the inclination measuring pipe and are sequentially connected with the RS485 bus through the connecting rope;

a processor module is arranged in the power locomotive and is connected with the RS485 bus;

the processor module is connected with the communication module;

and the first end of the connecting rope bypasses the guide pulley to be connected with the power locomotive.

6. The deep foundation pit monitoring device of claim 3, wherein the anchor rod axial force monitoring module comprises a vibrating wire anchor rod dynamometer and a read-write unit, the vibrating wire anchor rod dynamometer is connected with the read-write unit, and the read-write unit is connected with the communication module.

7. The deep foundation pit monitoring device according to claim 4, wherein the water level monitoring module comprises: the device comprises a winder, a communication wire, a water resistance probe, a control module and a measuring wheel;

the control module is respectively connected with the winder, the measuring wheel and the communication module;

the winder is fixed at the pithead of the deep foundation pit, the first end of the communication wire is connected with the water resistance probe, and the second end of the communication wire bypasses the winder to be connected with the control module;

the water resistance probe is positioned on the water level in the precipitation well or the water level observation well, and sends a rotation stopping signal when contacting the water level, wherein the rotation stopping signal is used for enabling the control module to control the winder to stop rotating;

the measuring wheel is arranged on the winder and used for acquiring the telescopic length of the communication lead and sending the telescopic length to the control module.

8. The deep foundation pit monitoring device according to claim 1, further comprising an alarm module, wherein the alarm module is connected with the communication module.

9. The deep foundation pit monitoring device according to claim 1, further comprising a display module, wherein the display module is respectively connected with the laser ranging module of the real-time differential positioning module, and is configured to display the first displacement data and the second displacement data.

10. The deep foundation pit monitoring device according to claim 5, wherein an audible and visual alarm is arranged in the power locomotive, and the processor module is further used for judging whether the deep horizontal displacement of the deep foundation pit exceeds a preset threshold value; the audible and visual alarm is connected with the processor module and used for receiving the instruction of the processor module and giving an alarm when the deep horizontal displacement of the deep foundation pit exceeds a preset threshold value.

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