CN110132230B - Pit is reclaimed with earth state monitoring devices that subsides - Google Patents
Pit is reclaimed with earth state monitoring devices that subsides Download PDFInfo
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- CN110132230B CN110132230B CN201910446413.5A CN201910446413A CN110132230B CN 110132230 B CN110132230 B CN 110132230B CN 201910446413 A CN201910446413 A CN 201910446413A CN 110132230 B CN110132230 B CN 110132230B
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- 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
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- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
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- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
The invention discloses a device for monitoring the sedimentation state of soil for pit reclamation, which comprises an external pipe, wherein sliding grooves are symmetrically arranged on the outer side of the external pipe in a penetrating manner, an internal pipe is slidably mounted in the external pipe, guide rods are symmetrically mounted on the outer side of the internal pipe, a guide ring is mounted at the lower end of the external pipe, a sinking rod is slidably mounted in the guide ring, and the lower end of the sinking rod penetrates through the guide ring and is provided with a gravity column; the outer pipe is characterized in that a top cover is slidably mounted on the outer side of the upper end of the outer pipe, a communicating hole is formed in the outer side of the top cover in a penetrating mode, a locking assembly is mounted on the outer side of the top cover, and a lifting rod is mounted on the upper surface of the top cover. Has the advantages that: the device drives the terminal post through the gravity post at the in-process that sinks and rotates, makes the lifter realize going up and down, is convenient for obtain the monitoring result, and the length of relative sliding distance between the horizontal plate that the cooperation was measured and the outside pipe avoids the horizontal plate to descend along with the subsidence of earth and the error that produces when descending, guarantees measuring result's accuracy.
Description
Technical Field
The invention relates to the technical field of soil settlement monitoring devices, in particular to a soil settlement state monitoring device for pit reclamation.
Background
When the pit is reclaimed, the pit can be buried, so that the elevation of the mining position is equal to that of the surrounding land, and the reclamation operation is convenient. Because the earth at the position of the pit is buried in the later period, the earth at the position can be settled under the action of long-time gravity, and in order to ensure that the pit is convenient to reclaim after being backfilled, the settlement monitoring of the earth after the pit is backfilled is needed to obtain the optimal backfilling amount.
The applicant finds that at least the following technical problems exist in the prior art: at present, when the settlement state of soil backfilled in a pit is monitored, a mode of burying an earth surface settlement plate and measuring the elevation change of a measuring rod on the settlement plate through a level gauge to obtain the settlement amount of a roadbed is usually adopted, and in the monitoring process, the settlement plate can also descend along with the settlement of the soil, so that the monitoring result is inaccurate, and a constructor can not obtain the optimal soil backfilling amount.
Disclosure of Invention
The invention aims to solve the problems, and provides a device for monitoring the sedimentation state of soil for pit reclamation, which is convenient for obtaining a monitoring result, avoids errors generated when a horizontal plate descends along with the sedimentation of the soil, and ensures the accuracy of the measuring result.
In order to achieve the purpose, the invention provides the following technical scheme:
the invention provides a device for monitoring the sedimentation state of soil for pit reclamation, which comprises an external pipe, wherein sliding grooves are symmetrically arranged on the outer side of the external pipe in a penetrating manner, an internal pipe is slidably arranged in the external pipe, guide rods are symmetrically arranged on the outer side of the internal pipe, the guide rods penetrate out of the sliding grooves and are provided with horizontal plates, a guide ring is arranged at the lower end of the external pipe, a sinking rod is slidably arranged in the guide ring, the upper end of the sinking rod extends into the internal pipe, and the lower end of the sinking rod penetrates out of the guide ring and is provided with a gravity column;
outside pipe upper end outside slidable mounting has the top cap, it is provided with the intercommunicating pore to run through in the top cap outside, it is right to install in the top cap with the outside pipe carries out the locking Assembly who locks, surface mounting has the lifter on the top cap, the terminal is installed through the transmission shaft in the lifter lower part, the terminal is close to the intercommunicating pore, it is right to install in the lifter outside the terminal carries out fixed subassembly fixed, the winding of the terminal outside has powerful rope, powerful rope's expansion end with the upper end of the pole that sinks is connected.
When the device is used, a strong rope wound on the wire column penetrates through the communication hole to be connected with the top end of the sinking rod, the top cover is installed at the upper end of the external pipe through the locking assembly, the gravity column is arranged downwards, the external pipe is vertically buried in soil, the gravity column is close to the guide ring at the moment, the horizontal plate is located on the surface of the soil layer, and the guide rod is located at the bottommost end of the sliding groove;
the device during operation relieves fixed subassembly is right the fixed of batter post, the gravity post drives under the effect of gravity the pole that sinks is in the inside slip of guide ring, and through powerful rope pulls the batter post rotates, realizes right the drive of lifter makes the lifter realizes flexible, through the data analysis calculates the back of the elongation of lifter, obtains the settlement volume of earth and device gravity settlement sum, and simultaneously, the outside pipe sinks under the effect of gravity, the guide bar is in the inside slip of sliding tray makes the inside pipe is in the inside relative slip of outside inside emergence, after carrying out the analysis and calculation to the numerical value of relative slip length, obtains the device and takes place the volume of subsiding under the action of gravity, synthesizes two sets of data, reachs earth settlement volume.
Preferably, the lifter includes fixed pipe, fixed pipe is installed the top cap upper surface, fixed pipe with fixed subassembly is connected, fixed inside installs through the bearing the lead screw, install the lead screw bottom transmission bevel gear, fixed socle portion outer wall is installed through the bearing the transmission shaft, the transmission shaft outer end is installed the terminal, install transmission shaft inner drive bevel gear, drive bevel gear with transmission bevel gear meshes mutually, install through the nut in the lead screw outside the fall way, the fall way is located the inside of fixed pipe, install in the fall way bottom outside the direction slider, the direction slider is located inside the guide way.
Preferably, a limiting plate is installed at the upper end of the screw rod.
Preferably, the outer side of one end of the string close to the fixed pipe is provided with a plurality of fixed holes, the fixed holes are arranged in a circumferential array by taking the axis of the string as the center, the fixed assembly comprises a fixed ring, the fixed ring is connected with the fixed pipe and corresponds to the fixed holes, the bottom surface of the fixed ring is provided with a threaded sleeve, the threaded sleeve is coaxial with the fixed ring, the inner hole wall of the threaded sleeve is provided with an internal thread, the fixed ring is internally and slidably provided with a fixed rod, the upper end of the fixed rod penetrates through the fixed ring and is provided with a fixed pull plate, the outer side of the fixed rod is provided with a threaded ring and a retaining ring, the threaded ring is positioned between the threaded sleeve and the retaining ring, the outer circular surface of the threaded ring is provided with an external thread, the threaded ring is in threaded fit with the threaded sleeve, the outer side of the fixed rod is sleeved with a fixed spring, the fixed spring is installed between the threaded sleeve and the retainer ring.
Preferably, a pull ring is mounted on the upper surface of the fixed pull plate.
Preferably, the number of the locking assemblies is two, and the two locking assemblies are symmetrically arranged on the outer circular surface of the top cover.
Preferably, the outside pipe outside symmetry is provided with the locking hole, the top cap excircle face runs through and is provided with the spliced eye, the spliced eye is provided with two, the spliced eye with the locking hole is corresponding, locking component includes the check lock lever, the check lock lever slidable mounting is in inside the spliced eye, the check lock lever outer end is worn out the spliced eye and is installed the locking arm-tie, the check lock lever outside cover is equipped with tension spring, tension spring fixed mounting be in the top cap with between the locking arm-tie.
Preferably, the locking rod is in clearance fit with the locking hole.
Preferably, level gauges are arranged on the upper surfaces of the horizontal plates.
Preferably, a pulling ring is installed at the top end of the sinking rod.
Has the advantages that: the device drives the terminal post through the gravity post at the in-process that sinks and rotates, makes the lifter realize going up and down, is convenient for obtain the monitoring result, and the length of relative sliding distance between the horizontal plate that the cooperation was measured and the outside pipe avoids the horizontal plate to descend along with the subsidence of earth and the error that produces when descending, guarantees measuring result's accuracy.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a front view of the present invention;
FIG. 2 is a left side view of the present invention;
FIG. 3 is a schematic left-side view of the internal structure of the electromagnetic adsorption block of the present invention;
FIG. 4 is a top view of the drive roller of the present invention;
fig. 5 is a partial enlarged view of the present invention.
The reference numerals are explained below:
1. a lifting rod; 101. a drive bevel gear; 102. a fixed tube; 103. a guide slider; 104. a nut; 105. a guide groove; 106. a lifting pipe; 107. a limiting plate; 108. a lead screw; 109. a drive bevel gear; 2. a fixing assembly; 201. fixing the rod; 202. a retainer ring; 203. a fixing ring; 204. a pull ring; 205. fixing the pulling plate; 206. a threaded sleeve; 207. fixing the spring; 208. a thread ring; 3. a top cover; 301. a communicating hole; 302. inserting holes; 4. a strong rope; 5. a level gauge; 6. an inner tube; 7. sinking the rod; 701. a pulling ring; 8. a gravity column; 9. a guide ring; 10. an outer tube; 1001. a sliding groove; 1002. a locking hole; 11. a horizontal plate; 1101. a guide bar; 12. a locking assembly; 1201. a tension spring; 1202. locking the pulling plate; 1203. a locking lever; 13. a wire post; 1301. a drive shaft; 1302. and (7) fixing holes.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the examples given herein without any inventive step, are within the scope of the present invention.
Referring to fig. 1 to 5, the invention provides a device for monitoring a sedimentation state of soil for pit reclamation, which comprises an outer pipe 10, wherein sliding grooves 1001 are symmetrically arranged on the outer side of the outer pipe 10 in a penetrating manner, an inner pipe 6 is slidably mounted in the outer pipe 10, guide rods 1101 are symmetrically mounted on the outer side of the inner pipe 6, the guide rods 1101 penetrate out of the sliding grooves 1001 and are provided with horizontal plates 11, a guide ring 9 is mounted at the lower end of the outer pipe 10, a sinking rod 7 is slidably mounted in the guide ring 9, the upper end of the sinking rod 7 extends into the inner pipe 6, and the lower end of the sinking rod 7 penetrates out of the guide ring 9 and is provided with a gravity column 8;
As an optional embodiment, the lifting rod 1 includes a fixed tube 102, the fixed tube 102 is mounted on the upper surface of the top cover 3, the fixed tube 102 is connected to the fixed assembly 2, the lead screw 108 is mounted inside the fixed tube 102 through a bearing, the transmission bevel gear 101 is mounted at the bottom of the lead screw 108, the transmission shaft 1301 is mounted on the outer wall of the bottom of the fixed tube 102 through a bearing, the wire column 13 is mounted at the outer end of the transmission shaft 1301, the drive bevel gear 109 is mounted at the inner end of the transmission shaft 1301, the drive bevel gear 109 is engaged with the transmission bevel gear 101, the lifting tube 106 is mounted outside the lead screw 108 through a nut 104, the lifting tube 106 is located inside the fixed tube 102, the guide slider 103 is mounted outside the bottom of the lifting tube 106, and the guide slider 103 is located inside the guide groove 105, when the lifting rod 1 is used for monitoring, the fixing of the fixing component 2 on the wire column 13 is released, the sinking rod 7 drives the wire column 13 to rotate through the strong rope 4, so that the transmission shaft 1301 drives the driving bevel gear 109 to rotate, the rotation of the lead screw 108 is realized through the meshing transmission of the driving bevel gear 109 and the transmission bevel gear 101, and the lifting pipe 106 moves upwards in the fixing pipe 102 through the threaded transmission of the nut 104 and the lead screw 108 and the guiding action of the guide sliding block 103 and the guide groove 105, so that the extending amount of the lifting pipe 106 is obtained.
A limiting plate 107 is installed at the upper end of the lead screw 108, so that the lead screw 108 and the lifting pipe 106 can be prevented from being separated, and the installation stability of the lifting rod 1 is guaranteed.
The outer side of one end of the string 13 close to the fixed pipe 102 is provided with a plurality of fixed holes 1302, the fixed holes 1302 are arranged in a circumferential array with the axis of the string 13 as the center, the fixed assembly 2 comprises a fixed ring 203, the fixed ring 203 is connected with the fixed pipe 102, the fixed ring 203 corresponds to the fixed holes 1302, the bottom surface of the fixed ring 203 is provided with a threaded sleeve 206, the threaded sleeve 206 is coaxial with the fixed ring 203, the inner hole wall of the threaded sleeve 206 is provided with an internal thread, the fixed ring 203 is internally provided with a fixed rod 201 in a sliding manner, the upper end of the fixed rod 201 passes through the fixed ring 203 and is provided with a fixed pull plate 205, the outer side of the fixed rod 201 is provided with a threaded ring 208 and a retainer ring 202, the threaded ring 208 is located between the threaded sleeve 206 and the retainer ring 202, the outer circular surface of the threaded ring 208 is provided with an external thread, and the threaded sleeve 206 is in threaded fit, a fixing spring 207 is sleeved outside the fixing rod 201, the fixing spring 207 is installed between the threaded sleeve 206 and the retainer ring 202, when the lifting rod 1 is used for monitoring, the elastic force of the fixing spring 207 is overcome, the threaded sleeve 206 is pulled, the fixing pull plate 205 pulls the fixing rod 201 to move upwards until the threaded ring 208 is in contact with the threaded sleeve 206, the fixing pull plate 205 is rotated, the fixing pull plate 205 drives the fixing rod 201 to rotate, the threaded ring 208 is in threaded connection with the threaded sleeve 206, the position of the fixing rod 201 is locked, the fixing rod 201 is completely separated from the fixing hole 1302 at the moment, the locking of the string column 13 is released, the string column 13 rotates under the action of the strong rope 4, and the lifting rod 1 is driven to ascend, and a measurement result is obtained; when the lifting rod 1 is not needed to be used for measurement, the fixing pulling plate 205 is reversed, so that the fixing pulling plate 205 drives the fixing rod 201 to rotate, the thread sleeve 206 and the thread ring 208 are separated, the fixing rod 201 is unlocked, the fixing pulling plate 205 is loosened, the retaining ring 202 drives the fixing rod 201 to move downwards by using the elastic force of the fixing spring 207 until the fixing rod 201 is inserted into the fixing hole 1302, and the fixing of the wire column 13 is completed.
The fixed pulling plate 205 is provided with a pulling ring 204 on the upper surface, so that the fixed pulling plate 205 can be pulled by the pulling ring 204 or the fixed pulling plate 205 can be screwed by the pulling ring 204.
The outer side of the outer pipe 10 is symmetrically provided with locking holes 1002, the outer circular surface of the top cover 3 is provided with two insertion holes 302 in a penetrating manner, the insertion holes 302 correspond to the locking holes 1002, the locking assembly 12 comprises a locking rod 1203, the locking rod 1203 is slidably mounted inside the insertion holes 302, the outer end of the locking rod 1203 penetrates through the insertion holes 302 and is provided with a locking pulling plate 1202, a tension spring 1201 is sleeved outside the locking rod 1203, the tension spring 1201 is fixedly mounted between the top cover 3 and the locking pulling plate 1202, when the top cover 3 is disassembled, the locking pulling plate 1202 is pulled by overcoming the tension of the tension spring 1201, so that the locking pulling plate 1202 pulls the locking rod 1203 to move until the locking rod 1203 is completely separated from the locking holes 1002, and the top cover 3 slides out from the outer side of the outer pipe 10, when the top cover 3 needs to be installed, the locking pulling plate 1202 is pulled by overcoming the pulling force of the pulling spring 1201, so that the locking pulling plate 1202 pulls the locking rod 1203 to move until the inner end of the locking rod 1203 extends into the inserting hole 302, the upper end of the external pipe 10 slides into the top cover 3, the locking hole 1002 corresponds to the inserting hole 302, the locking pulling plate 1202 is loosened, the locking pulling plate 1202 is driven by the locking pulling plate 1202 to move until the locking rod 1203 is inserted into the locking hole 1002 by the pulling force of the pulling spring 1201, and the top cover 3 and the external pipe 10 are locked.
The locking rod 1203 is in clearance fit with the locking hole 1002, so that the locking hole 1002 can be in full contact with the locking rod 1203, and the locking stability of the top cover 3 and the outer pipe 10 is guaranteed.
11 upper surfaces of horizontal plate all are provided with spirit level 5, and it is able to pass through to set up like this spirit level 5 is right the levelness of horizontal plate 11 is monitored, settlement direction when conveniently confirming earth subsides.
The top end of the sinking rod 7 is provided with a pulling ring 701, and the arrangement is convenient for connecting the strong rope 4 through the pulling ring 701.
When the device is used, the strong rope 4 wound on the wire column 13 penetrates through the communication hole 301 to be connected with the top end of the sinking rod 7, the top cover 3 is installed at the upper end of the external pipe 10 through the locking assembly 12, the gravity column 8 is arranged downwards, the external pipe 10 is vertically buried in soil, the gravity column 8 is close to the guide ring 9, the horizontal plate 11 is located on the surface of the soil layer, and the guide rod 1101 is located at the bottommost end of the sliding groove 1001;
the device during operation relieves fixed subassembly 2 is right the fixed of post 13, gravity post 8 drives under the effect of gravity the pole 7 that sinks is in the inside slip of guide ring 9, and through powerful rope 4 pulling post 13 rotates, realizes right the drive of lifter 1 makes lifter 1 realizes flexible, through the data analysis of the elongation of lifter 1 calculates the back, obtains the settlement volume and the device gravity settlement sum of earth, and simultaneously, outside pipe 10 sinks under the effect of gravity, guide bar 1101 is in the inside slip of sliding tray 1001 makes inside pipe 6 is in outside pipe 10 is inside to take place relative slip, carries out the analysis and calculation to the numerical value of relative slip length after, obtains the volume that the device takes place to subside under the effect of gravity, synthesizes two sets of data, reachs earth settlement volume.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention 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 invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.
Claims (10)
1. The utility model provides a pit is land reclamation with earth state monitoring devices that subsides which characterized in that: the pipe fitting comprises an outer pipe (10), wherein sliding grooves (1001) are symmetrically arranged in the outer side of the outer pipe (10) in a penetrating mode, an inner pipe (6) is arranged in the outer side of the outer pipe (10) in a sliding mode, guide rods (1101) are symmetrically arranged on the outer side of the inner pipe (6), the guide rods (1101) penetrate out of the sliding grooves (1001) and are provided with horizontal plates (11), a guide ring (9) is arranged at the lower end of the outer pipe (10), a sinking rod (7) is arranged in the guide ring (9) in a sliding mode, the upper end of the sinking rod (7) extends into the inner pipe (6), and the lower end of the sinking rod (7) penetrates out of the guide ring (9) and is provided with a gravity column (8);
outside pipe (10) upper end outside slidable mounting has top cap (3), top cap (3) outside is run through and is provided with intercommunicating pore (301), it is right to be used for top cap (3) and outside pipe (10) carry out locking assembly (12), surface mounting has lifter (1) on top cap (3), spool (13) are installed through transmission shaft (1301) to lifter (1) lower part, spool (13) are close to intercommunicating pore (301), it is right to be used for installing in lifter (1) outside spool (13) carry out fixed subassembly (2) fixed, the winding has powerful rope (4) outside spool (13), the expansion end of powerful rope (4) with the upper end of sinking pole (7) is connected.
2. The device for monitoring the settlement state of soil for pit reclamation according to claim 1, wherein: the lifting rod (1) comprises a fixed pipe (102), the fixed pipe (102) is installed on the upper surface of the top cover (3), the fixed pipe (102) is connected with the fixed component (2), a lead screw (108) is installed inside the fixed pipe (102) through a bearing, a transmission bevel gear (101) is installed at the bottom of the lead screw (108), the outer wall of the bottom of the fixed pipe (102) is installed on the transmission shaft (1301) through a bearing, the wire column (13) is installed at the outer end of the transmission shaft (1301), a driving bevel gear (109) is installed at the inner end of the transmission shaft (1301), the driving bevel gear (109) is meshed with the transmission bevel gear (101), a lifting pipe (106) is installed on the outer side of the lead screw (108) through a nut (104), the lifting pipe (106) is located inside the fixed pipe (102), and a guide sliding block (103) is installed on the outer side of the bottom of the lifting pipe (106), the guide slider (103) is positioned inside the guide groove (105).
3. The device for monitoring the settlement state of soil for pit reclamation according to claim 2, wherein: and a limiting plate (107) is arranged at the upper end of the screw rod (108).
4. The device for monitoring the settlement state of soil for pit reclamation according to claim 2, wherein: the utility model discloses a fixing device for the cable tie, including fixed pipe (102), fixed ring (206), thread bush (206), fixed ring (203), be provided with the internal thread on the inside pore wall of thread bush (206), fixed ring (203) inside slidable mounting has dead lever (201), dead lever (201) upper end passes fixed ring (203) and installs fixed arm (205), thread circle (208) and retaining ring (202) are installed to the dead lever (201) outside, the thread ring (208) is located between the thread sleeve (206) and the retainer ring (202), an external thread is arranged on the outer circular surface of the thread ring (208), the thread ring (208) is in threaded fit with the thread sleeve (206), a fixing spring (207) is sleeved on the outer side of the fixing rod (201), and the fixing spring (207) is installed between the thread sleeve (206) and the retainer ring (202).
5. The device for monitoring the settlement state of soil for pit reclamation according to claim 4, wherein: and a pull ring (204) is arranged on the upper surface of the fixed pull plate (205).
6. The device for monitoring the settlement state of soil for pit reclamation according to claim 1, wherein: the two locking assemblies (12) are symmetrically arranged on the outer circular surface of the top cover (3).
7. The device for monitoring the settlement state of soil for pit reclamation according to claim 6, wherein: the outer side of the outer pipe (10) is symmetrically provided with locking holes (1002), the outer circular surface of the top cover (3) penetrates through and is provided with two insertion holes (302), the insertion holes (302) are corresponding to the locking holes (1002), the locking assembly (12) comprises a locking rod (1203), the locking rod (1203) is slidably mounted inside the insertion holes (302), the outer end of the locking rod (1203) penetrates out of the insertion holes (302) and is provided with a locking pull plate (1202), a tension spring (1201) is sleeved on the outer side of the locking rod (1203), and the tension spring (1201) is fixedly mounted between the top cover (3) and the locking pull plate (1202).
8. The device for monitoring the settlement state of soil for pit reclamation according to claim 7, wherein: the locking rod (1203) is in clearance fit with the locking hole (1002).
9. The device for monitoring the settlement state of soil for pit reclamation according to claim 1, wherein: the upper surface of the horizontal plate (11) is provided with a level (5).
10. The device for monitoring the settlement state of soil for pit reclamation according to claim 1, wherein: and a pulling ring (701) is installed at the top end of the sinking rod (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910446413.5A CN110132230B (en) | 2019-05-27 | 2019-05-27 | Pit is reclaimed with earth state monitoring devices that subsides |
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| CN201910446413.5A CN110132230B (en) | 2019-05-27 | 2019-05-27 | Pit is reclaimed with earth state monitoring devices that subsides |
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| CN110132230A CN110132230A (en) | 2019-08-16 |
| CN110132230B true CN110132230B (en) | 2021-07-30 |
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| CN110686659B (en) * | 2019-11-22 | 2021-09-21 | 中铁十八局集团有限公司 | Surface subsidence monitoring device for subway tunnel construction |
| CN112082525B (en) * | 2020-08-12 | 2022-07-12 | 重庆文理学院 | Laying device and working method of loess geological tunnel ground surface settlement measuring point rods |
| CN112709010B (en) * | 2020-12-11 | 2021-12-07 | 襄阳富黄汽车内饰件有限公司 | Adjustable tensioning device in production of automobile roof |
| CN112349078B (en) * | 2021-01-11 | 2021-04-16 | 湖南联智科技股份有限公司 | Gravity type underground cavity automatic monitoring and alarming method |
| CN115248027B (en) * | 2021-04-28 | 2023-07-21 | 深圳大学 | Optical fiber sensing monitoring device for soil settlement and settlement measuring method |
| CN115978388A (en) * | 2022-10-28 | 2023-04-18 | 云南电网有限责任公司电力科学研究院 | Outdoor monitoring support and outdoor monitoring facilities |
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| CN110132230A (en) | 2019-08-16 |
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