CN105674952B - Building settlement measuring device and method - Google Patents
Building settlement measuring device and method Download PDFInfo
- Publication number
- CN105674952B CN105674952B CN201610012681.2A CN201610012681A CN105674952B CN 105674952 B CN105674952 B CN 105674952B CN 201610012681 A CN201610012681 A CN 201610012681A CN 105674952 B CN105674952 B CN 105674952B
- Authority
- CN
- China
- Prior art keywords
- scale
- laser
- support rod
- shell
- building
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000000034 method Methods 0.000 title claims abstract description 21
- 239000011521 glass Substances 0.000 claims abstract description 25
- 239000000725 suspension Substances 0.000 claims abstract description 5
- 230000004907 flux Effects 0.000 claims description 17
- 238000010276 construction Methods 0.000 claims description 13
- 229910000831 Steel Inorganic materials 0.000 claims description 11
- 239000010959 steel Substances 0.000 claims description 11
- 230000007246 mechanism Effects 0.000 claims description 10
- 238000005315 distribution function Methods 0.000 claims description 7
- 230000003287 optical effect Effects 0.000 claims description 4
- 238000005457 optimization Methods 0.000 claims description 4
- 238000005259 measurement Methods 0.000 abstract description 17
- 230000008569 process Effects 0.000 description 5
- 238000004458 analytical method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000009435 building construction Methods 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000013433 optimization analysis Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000004886 process control Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 238000012549 training Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C5/00—Measuring height; Measuring distances transverse to line of sight; Levelling between separated points; Surveyors' levels
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C15/00—Surveying instruments or accessories not provided for in groups G01C1/00 - G01C13/00
- G01C15/002—Active optical surveying means
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Length Measuring Devices By Optical Means (AREA)
Abstract
The invention discloses a kind of building settlement measuring device and method, which includes laser body and scale；The laser body includes hollow shell, the disk of the hull outside is set and is arranged in the intracorporal support rod of the shell, laser emitter and tow ball, the disk rotational is mounted on the outside of the shell, the both ends of the support rod pass through connecting rope respectively and connect with disk, the equal length of two connecting ropes, the tow ball is connected by the middle part of suspension rope and support rod, the laser emitter is vertically mounted on the middle part of support rod, and it can be rotated around support rod, the shell has a transparent glass planar, so that the laser beam of laser transmitter projects is projected through glass planar；The outside of glass planar is arranged in the scale, and for receiving the laser beam issued from laser emitter, the scale is equipped with scale.Price of the present invention is more economical, and ranging is longer, and human cost is lower, and measurement accuracy is higher.
Description
Technical Field
The invention belongs to the technical field of elevation measurement, and particularly relates to a building settlement measurement device and method.
Background
With the increase of the speed of urban construction in China, various complex and large-scale engineering buildings in the fields of municipal administration, water conservancy, civil engineering and the like are increasing day by day, and the building of the buildings generates larger additional pressure on the original ground around the buildings, changes the stress state of the surrounding stratum, and inevitably causes the settlement deformation of the foundation and the surrounding stratum. In order to ensure the normal service life and safety of the building and provide reliable guiding information for later construction, the importance of building settlement observation is increasingly obvious. The current regulations also stipulate that settlement observation is carried out on high-rise buildings, high-rise structures, important ancient buildings, continuous production facility foundations, power equipment foundations, side slopes, foundation pits and the like. Especially in the high-rise building construction process, should use and subside to survey and strengthen process control, guide reasonable construction process, the prevention appears uneven settlement in the work progress, and information is fed back in time, provides the first hand data in detail for reconnaissance design construction department, avoids causing the destruction of building main part structure because of subsiding the reason, produces the crack that influences structure service function, causes huge economic loss.
The settlement observation device widely used in the engineering at present is mainly a level gauge which measures the height difference between two points on the ground by establishing a horizontal sight line. Leveling has the following disadvantages:
1) the price is high, and the high-precision level generally needs several levels, so that the economic cost is increased;
2) the manpower is more, and at least two measurement technicians are needed for the measurement of a common level gauge, so that the manpower waste is caused;
3) measurement technicians can better master measurement skills only through training, and time cost is increased;
4) certain measurement errors can be formed by the erection and transfer of the tripod, and the more the rotating points are, the larger the accumulated error is;
5) the measurement distance is shorter and as the distance measurement increases, the error also increases.
Therefore, the research and development of building settlement measurement which is more economic and reliable, longer in distance measurement and lower in labor cost has important significance for the development of the civil engineering field.
Disclosure of Invention
The invention aims to provide a building settlement measuring device and method, which are more economical in price, longer in distance measurement, lower in labor cost and higher in measuring accuracy.
The technical scheme adopted by the invention for solving the technical problems is as follows:
a building settlement measuring device comprises a laser emission mechanism and a scale; wherein,
the laser emission mechanism comprises a closed hollow shell, a disc arranged on the outer side of the shell, and a support rod, a laser emitter and a traction ball which are arranged in the shell, wherein the disc is rotatably arranged on the outer side of the shell, two ends of the support rod are respectively connected with the disc through connecting ropes, the lengths of the two connecting ropes are equal, the traction ball is connected with the middle part of the support rod through a suspension rope, the laser emitter is vertically arranged in the middle part of the support rod and can rotate around the support rod, and the shell is provided with a transparent glass plane so that a laser beam emitted by the laser emitter can be emitted out through the glass plane;
the scale is arranged on the outer side of the glass plane and used for receiving laser beams emitted by the laser emitter, and scales are arranged on the scale.
According to the technical scheme, the shell is a cuboid shell made of five rectangular steel plates and one piece of transparent homogeneous glass.
According to the technical scheme, the disc is rotatably arranged in the middle of the rectangular steel plate connected with the glass plane.
According to the technical scheme, the mass of the traction ball is 5-20 times of that of the support rod.
According to the technical scheme, the distance between every two adjacent scales on the scale is smaller than 1 mm.
Correspondingly, the invention also provides a building settlement measuring method, which comprises the following steps:
s1, fixedly installing the staff gauge on a remote object which does not generate settlement, embedding the laser emitting mechanism on the side wall of a building to be tested and under construction, enabling the traction ball to fall vertically, ensuring that the supporting rod is in a horizontal state, adjusting the position of the supporting rod on the horizontal plane by the rotary disc, rotating the laser emitter around the axis of the supporting rod, adjusting the vertical emitting position of the laser emitter, enabling the laser beam emitted by the laser emitter to penetrate through the glass plane and be projected on the staff gauge, and fixing the laser emitter;
and S2, reading and acquiring elevation data projected on the scale by the laser beam once at intervals, wherein the difference between two adjacent data is the settlement value of the building.
According to the technical scheme, the method further comprises the step of S3, optimizing the projection elevation of the laser beam on the ruler:
s301, acquiring scale photos by photographing at intervals;
s302, reading the photo through computer software, extracting optical information in the photo, and obtaining a normal distribution function of laser information flux along the scale marks of the scale, wherein the laser information flux corresponding to discrete scale points on the scale can be obtained;
s303, carrying out nonlinear optimization on the normal distribution function in the step S302, wherein the function is represented by the following formula
The elevation z corresponding to the maximum laser information flux G can be obtained, and the scale elevation data corresponding to the strongest point of the signal can be obtained, wherein G represents the size of the laser information flux, and z represents the size of the laser information flux0Scale marks on the scale are shown, α, β and z are parameters to be optimized, and z represents elevation.
The invention has the following beneficial effects: the device does not need the manual work to erect the tripod and measures, only needs to install laser emission mechanism on the side wall of the building that awaits measuring, installs the scale on the ground or the building that do not receive the construction influence far away, and during the measurement, laser emitter transmission laser beam is projected on the scale, can regularly read the scale interval that the laser beam was projected on the scale, and the difference of adjacent twice data is the building settlement value promptly. Compared with the traditional level gauge, the invention has the advantages of more economic price, longer distance measurement, lower labor cost and higher measurement precision, is very suitable for popularization in civil engineering application such as municipal administration, water conservancy, civil engineering and the like, can be used for observing construction settlement of engineering such as civil houses, side slopes, foundation pits and the like, provides guarantee for preventing cracks of a main structure caused by settlement and belongs to the field.
Drawings
The invention will be further described with reference to the accompanying drawings and examples, in which:
FIG. 1 is a schematic structural diagram of an embodiment of the present invention;
fig. 2 is a diagram of a normal distribution function of laser information flux in an embodiment of the present invention.
In the figure: the device comprises a shell 1, a glass plane 101, a disc 2, a connecting rope 3, a laser emitter 4, a support rod 5, a traction ball 6, a laser beam 7, a scale 8 and a suspension rope 9.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
As shown in fig. 1, a building settlement measuring device includes a laser emitting mechanism and a scale 8; wherein,
the laser emission mechanism comprises a closed hollow shell 1, a disc 2 arranged on the outer side of the shell 1, a support rod 5 arranged in the shell 1, a laser emitter 4 and a traction ball 6, wherein the disc 2 is rotatably arranged on the outer side of the shell 1, two ends of the support rod 5 are respectively connected with the disc 2 through connecting ropes 3, the lengths of the two connecting ropes 3 are equal, the traction ball 6 is connected with the middle part of the support rod 5 through a suspension rope 9, the laser emitter 4 is vertically arranged in the middle part of the support rod 5 and can rotate around the support rod, and the shell 1 is provided with a transparent glass plane 101 so that a laser beam 7 emitted by the laser emitter 4 can be emitted through the glass plane 101;
the scale 8 is arranged on the outer side of the glass plane 101 and used for receiving the laser beam 7 emitted by the laser transmitter 4, and scales are arranged on the scale 8.
In the preferred embodiment of the present invention, as shown in fig. 1, the housing 1 is a rectangular parallelepiped housing made of five rectangular steel plates and one transparent homogeneous glass, wherein a disk is rotatably installed in the middle of the rectangular steel plate connected to the glass plane.
In the preferred embodiment of the present invention, as shown in fig. 1, the mass of the traction ball 6 is 5 to 20 times, generally 10 times, the mass of the support rod 5.
In the preferred embodiment of the present invention, as shown in fig. 1, the traction balls 6 are steel balls, and the support rods 5 are steel pipes.
In the preferred embodiment of the present invention, as shown in fig. 1, the distance between every two adjacent scales on the scale 8 is less than 1mm, generally 1mm, and the measurement precision is high.
As shown in fig. 1, a method for measuring building settlement includes the following steps:
s1, fixedly installing the staff gauge 8 on a distant object which does not generate settlement, embedding the laser emitting mechanism on the side wall of a building to be tested and under construction, enabling the traction ball 6 to fall vertically, ensuring that the support rod 5 is in a horizontal state, adjusting the position of the support rod 5 on the horizontal plane by the rotary disc 2, rotating the laser emitter 4 around the axis of the support rod 5, adjusting the vertical emitting position of the laser emitter 4, enabling the laser beam 7 emitted by the laser emitter 4 to pass through the glass plane 101 to be projected on the staff gauge 8, and fixing the laser emitter 4;
and S2, reading and acquiring elevation data projected on the scale by the laser beam once at intervals, wherein the difference between two adjacent data is the settlement value of the building.
According to the technical scheme, the method further comprises the step of S3, optimizing the projection elevation of the laser beam on the ruler:
s301, acquiring scale photos by photographing at intervals;
s302, reading the photo through computer software, extracting optical information in the photo, and obtaining a normal distribution function of laser information flux along the scale as shown in FIG. 2, wherein the laser information flux corresponding to discrete scale points on the scale can be obtained;
s303, carrying out nonlinear optimization on the normal distribution function in the step S302, wherein the function is represented by the following formula
The elevation z corresponding to the maximum laser information flux G can be obtained, and the scale elevation data corresponding to the strongest point of the signal can be obtained, wherein G represents the size of the laser information flux, and z represents the size of the laser information flux0Scale marks on the scale are shown, α, β and z are parameters to be optimized, and z represents elevation.
When the device is specifically applied, 1) five surfaces of a hollow closed cuboid shell are steel plates, one surface of the hollow closed cuboid shell is transparent glass, the cuboid shell is embedded in the side wall of a building to be tested, and the plane surface of the glass faces the outside, so that a laser beam emitted by a laser emitter in the cuboid can penetrate through the plane surface of the glass and irradiate to the outside;
2) a rotatable disc is fixed at the central point of the upper panel of the cuboid shell, the position of the support rod on the horizontal plane can be adjusted through rotating the disc, the stabilized support rod can be always positioned on the horizontal plane, the accuracy of a laser transmitter for transmitting a laser beam signal is guaranteed, a round small hole with a small diameter is formed at the central point of the upper panel of the shell, one ends of a pair of ropes with equal length are bound together and connected with the disc through the round small hole, and the other ends of the ropes are respectively connected with two ends of the support rod;
3) the central point of the lower end of the supporting rod is connected with a traction ball through a rope, the weight of the traction ball is heavier, and about 10 times of that of the supporting rod can be taken, so that the laser emitter in the shell can still be kept stable even if the shell is inclined at an angle;
4) the laser emitter is vertically connected with the supporting rod and can rotate around the supporting rod, the steel pipe can be fixed when rotating to a proper angle, and the steel pipe is adjusted in the horizontal plane direction through the rotating disc, so that the accessible area of a laser beam emitted by the laser emitter is large, and a larger space is provided for the arrangement of a scale;
5) the laser beam is emitted by a laser emitter;
6) the scale is erected on the ground far away from the construction site or buried in a building far away from the construction site and used for receiving the laser beam emitted by the laser emitter, and in order to obtain high precision, the scale on the scale is dense enough.
The invention can also collect the scale photo by photographing, and then carry out indoor operation to analyze the accurate scale of the laser. The indoor work analysis process is as follows:
1. optical information extraction is carried out on the collected photos through software such as Matlab and the like, as shown in figure 2, the flux of the extracted laser information is normally distributed on the scale marks of the scale, and each scale mark z is0The value of the laser information flux G can be obtained;
2. in order to further eliminate scale calibration errors, a more accurate elevation z is obtained by performing nonlinear optimization on the function shown in fig. 2, that is, the elevation of the scale corresponding to the point (the highest point of the normal distribution) where the signal is strongest is found, and the laser normal distribution signal shown in fig. 2 can be represented by the following formula
(1) Wherein G represents the magnitude of the signal flux, z0Indicating graduations on the scale, αβ and z are parameters to be optimized, wherein z represents elevation, and the elevation z corresponding to the maximum signal flux G can be searched by only adopting conventional nonlinear programming, namely the elevation value to be found finally.
The indoor optimization analysis process can be programmed into a program to enable a computer to automatically process the photos, and each scale photo can be optimized to obtain an elevation z with higher precision. Therefore, the ruler pictures are taken at regular intervals and taken back to the room for analysis, and the elevation difference obtained by two adjacent analyses is the settlement value of the building.
The method can be used for monitoring the building sinking caused by foundation settlement along with the increase of the construction time in the civil engineering, and has a vital effect on predicting the safety of the building. The invention is also suitable for the settlement monitoring of the side slope and the foundation pit, only the shell needs to be embedded in the side slope or the foundation pit, and the scale is fixed at a far position which is not influenced by construction.
It will be understood that modifications and variations can be made by persons skilled in the art in light of the above teachings and all such modifications and variations are intended to be included within the scope of the invention as defined in the appended claims.
Claims (5)
1. A building settlement measuring method adopts a building settlement measuring device to measure, wherein the building settlement measuring device comprises a laser emission mechanism and a scale; the laser emission mechanism comprises a closed hollow shell, a disc arranged on the outer side of the shell, and a support rod, a laser emitter and a traction ball which are arranged in the shell, wherein the disc is rotatably arranged on the outer side of the shell, two ends of the support rod are respectively connected with the disc through connecting ropes, the lengths of the two connecting ropes are equal, the traction ball is connected with the middle part of the support rod through a suspension rope, the laser emitter is vertically arranged in the middle part of the support rod and can rotate around the support rod, and the shell is provided with a transparent glass plane so that a laser beam emitted by the laser emitter can be emitted out through the glass plane; the scale is arranged on the outer side of the glass plane and used for receiving laser beams emitted by the laser emitter, and scales are arranged on the scale; the method is characterized by comprising the following steps:
s1, fixedly installing the staff gauge on a remote object which does not generate settlement, embedding the laser emitting mechanism on the side wall of a building to be tested and under construction, enabling the traction ball to fall vertically, ensuring that the supporting rod is in a horizontal state, adjusting the position of the supporting rod on the horizontal plane by the rotary disc, rotating the laser emitter around the axis of the supporting rod, adjusting the vertical emitting position of the laser emitter, enabling the laser beam emitted by the laser emitter to penetrate through the glass plane and be projected on the staff gauge, and fixing the laser emitter;
s2, reading and acquiring elevation data projected on the scale by the laser beam once at intervals, wherein the difference between two adjacent data is the settlement value of the building;
s3, optimizing the projection elevation of the laser beam on the scale:
s301, acquiring scale photos by photographing at intervals;
s302, reading the photo through computer software, extracting optical information in the photo, and obtaining a normal distribution function of laser information flux along the scale marks of the scale, wherein the laser information flux corresponding to discrete scale points on the scale can be obtained;
s303, carrying out nonlinear optimization on the normal distribution function in the step S302, wherein the function is represented by the following formula
The elevation z corresponding to the maximum laser information flux G can be obtained, and the scale elevation data corresponding to the strongest point of the signal can be obtained, wherein G represents the size of the laser information flux, and z represents the size of the laser information flux0Scale marks on the scale are shown, α, β and z are parameters to be optimized, and z represents elevation.
2. The building settlement measuring method according to claim 1, wherein the housing is a rectangular parallelepiped housing made of five rectangular steel plates and one transparent homogeneous glass.
3. The building settlement measuring method of claim 2, wherein the disc is rotatably installed at a middle portion of a rectangular steel plate connected to a glass plane.
4. The building settlement measuring method according to claim 1, wherein the mass of the traction ball is 5 to 20 times that of the support rod.
5. The building settlement measuring method of claim 1, wherein a distance between every two adjacent graduations on the scale is less than 1 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610012681.2A CN105674952B (en) | 2016-01-08 | 2016-01-08 | Building settlement measuring device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610012681.2A CN105674952B (en) | 2016-01-08 | 2016-01-08 | Building settlement measuring device and method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105674952A CN105674952A (en) | 2016-06-15 |
| CN105674952B true CN105674952B (en) | 2018-12-18 |
Family
ID=56299648
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610012681.2A Active CN105674952B (en) | 2016-01-08 | 2016-01-08 | Building settlement measuring device and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105674952B (en) |
Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106092044B (en) * | 2016-07-29 | 2018-09-25 | 顾建忠 | Building level measurement method |
| CN106767688B (en) * | 2017-02-27 | 2018-06-19 | 中国石油大学(华东) | Tank foundation settlement monitoring device based on laser ranging |
| CN107063111A (en) * | 2017-05-24 | 2017-08-18 | 安徽科恩新能源有限公司 | Deep basal pit push pipe operation well caves in early warning system |
| CN107422333B (en) * | 2017-07-03 | 2023-09-29 | 浙江新创规划建筑设计有限公司 | Laser ranging matrix |
| CN107860317B (en) * | 2017-11-03 | 2020-10-27 | 长沙理工大学 | Method for detecting displacement or vibration amplitude of structure based on displacement of laser spot |
| CN108180894A (en) * | 2018-02-09 | 2018-06-19 | 河北省建筑科学研究院 | Building settlement measures and urban waterlogging prior-warning device |
| CN108168512B (en) * | 2018-02-22 | 2020-09-25 | 广州市城市建设工程监理公司 | Device and method for measuring surface settlement of underground excavation section of subway |
| CN108757343B (en) * | 2018-06-21 | 2024-02-09 | 金风科技股份有限公司 | Wind generating set and detection method, device and system for operation conditions of wind generating set |
| CN110631550B (en) * | 2019-09-29 | 2022-02-08 | 中铁大桥局第七工程有限公司 | Method and device for measuring inclination of cofferdam back cover |
| CN111156961A (en) * | 2020-01-02 | 2020-05-15 | 深圳市鹰眼在线电子科技有限公司 | Laser settlement monitoring device and laser settlement monitoring system |
| CN111174760A (en) * | 2020-02-20 | 2020-05-19 | 江南造船(集团)有限责任公司 | Ship inclination angle measuring device and measuring method thereof |
| CN113375638B (en) * | 2021-06-10 | 2022-07-15 | 青岛黄海学院 | Building engineering perpendicularity measuring instrument and using method |
| CN114152239A (en) * | 2021-11-04 | 2022-03-08 | 盐城工学院 | Surface layer settlement measuring method and observation device thereof |
| CN115772920A (en) * | 2023-02-13 | 2023-03-10 | 广州继善建筑技术有限公司 | Foundation detection method and device |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2380900Y (en) * | 1999-05-18 | 2000-05-31 | 钟锡球 | Level indicator |
| CN104931014A (en) * | 2015-04-02 | 2015-09-23 | 中建三局第二建设工程有限责任公司 | Compression deformation observation device and method used for structural settlement or under high-rise structure self-weight |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7073269B2 (en) * | 2004-10-19 | 2006-07-11 | Trimble Navigation Limited | Self-leveling laser alignment tool and method thereof |
| DE102007039339A1 (en) * | 2007-08-21 | 2009-02-26 | Robert Bosch Gmbh | Pendulum laser device |
| CN103105159B (en) * | 2013-01-25 | 2015-06-10 | 中南大学 | Differential settlement monitoring instrument for high-speed rail |
| CN203487566U (en) * | 2013-08-14 | 2014-03-19 | 王鹏 | Pile foundation settlement measuring device |
-
2016
- 2016-01-08 CN CN201610012681.2A patent/CN105674952B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2380900Y (en) * | 1999-05-18 | 2000-05-31 | 钟锡球 | Level indicator |
| CN104931014A (en) * | 2015-04-02 | 2015-09-23 | 中建三局第二建设工程有限责任公司 | Compression deformation observation device and method used for structural settlement or under high-rise structure self-weight |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105674952A (en) | 2016-06-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105674952B (en) | Building settlement measuring device and method | |
| CN104197852B (en) | Reservoir dam depression and horizontal displacement monitoring system | |
| CN106524936B (en) | Tunnel pipe shed deformation monitoring method | |
| CN104180759B (en) | Reservoir dam depression and horizontal displacement Trigger jitter detection device and detection method | |
| CN105178276B (en) | Inclination measuring device based on optical theory | |
| CN108253946B (en) | Multifunctional vertical measurement and connection measurement integrated three-dimensional coordinate transmission device and method | |
| CN101886916B (en) | Optical observation device of deformation in surrounding rock | |
| CN111429575B (en) | Three-dimensional visual monitoring method, system, equipment and storage medium | |
| CN105043343A (en) | Method for automated measurement of tunnel vault settlement based on laser displacement sensor | |
| CN112049648B (en) | Pipe jacking construction monitoring control method | |
| CN109443327A (en) | A kind of distribution method of SURVEYING CONTROL NETWORK | |
| CN114152239A (en) | Surface layer settlement measuring method and observation device thereof | |
| CN111721273A (en) | Laser plumb line measuring device and laser plumb line measuring system | |
| CN115478567A (en) | Tunnel open excavation construction monitoring method with underground track penetrating upwards and adjacent to peripheral buildings | |
| CN115637743A (en) | Method for intelligently monitoring deformation during construction of deep and large foundation pit | |
| CN213897069U (en) | Foundation settlement detector | |
| CN113310466A (en) | Anti-slide pile deviation monitoring device and monitoring method | |
| CN205778824U (en) | A kind of drilling pouring pile hole perpendicularity accurately measures device | |
| CN103376064A (en) | Building foundation ditch or side slope deformation monitoring method and building foundation ditch or side slope deformation monitoring reflection device | |
| CN210513017U (en) | High formwork upright rod displacement real-time monitoring system based on CCD sensor | |
| CN208721070U (en) | A kind of horizontal vertical measuring device of high level armored concrete wall | |
| CN108204799B (en) | Device and method for measuring inclination, settlement, stretching and deformation of house foundation under mining influence | |
| CN217504685U (en) | Deformation monitoring system | |
| CN211201968U (en) | Monitoring device for tunnel jacking construction guide | |
| CN213579343U (en) | Laser plumb line measuring device and laser plumb line measuring system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |