CN110345892B - Landslide and landslide surface sliding displacement monitoring device and installation method thereof - Google Patents
Landslide and landslide surface sliding displacement monitoring device and installation method thereof Download PDFInfo
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- CN110345892B CN110345892B CN201910747060.2A CN201910747060A CN110345892B CN 110345892 B CN110345892 B CN 110345892B CN 201910747060 A CN201910747060 A CN 201910747060A CN 110345892 B CN110345892 B CN 110345892B
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- displacement
- landslide
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- steel
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/02—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness
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- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
- G08C17/02—Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
Abstract
The invention discloses a landslide and sliding surface sliding displacement monitoring device and an installation method thereof, wherein the landslide and sliding surface sliding displacement monitoring device comprises an inclinometer tube, wherein a wiring board is clamped in a tube body at the bottom of each tube joint of the inclinometer tube, each wiring board is respectively anchored with a steel strand, and the steel strands on the lower wiring board sequentially penetrate through holes formed in an upper wiring board and a top cover and are converged into a monitoring wire bundle together with the steel strands anchored on the top cover; the top of the inclinometer pipe is provided with a protection box, the protection box is internally provided with displacement meters with the same number as the steel strands of the monitoring wire harness, one ends of the displacement meters are fixedly connected with the side wall of the protection box, and the other ends of the displacement meters are fixedly connected with the single steel strands in a one-to-one correspondence manner; and a GPRS wireless transmission instrument and a data acquisition instrument are also arranged in the protective box. According to the invention, the displacement change of each bundle of steel strands is collected in real time by the data acquisition instrument, and the displacement change of each steel strand determines the landslide surface, so that the automatic monitoring of the landslide surface is realized; and the device can be recycled, the landslide and landslide surface monitoring cost is reduced, and the economical efficiency is high.
Description
Technical Field
The invention relates to the field of landslide detection, in particular to a landslide and landslide surface sliding displacement monitoring device and an installation method of the landslide and landslide surface sliding displacement monitoring device.
Background
The landslide refers to a deformation phenomenon that a soil body or a rock body on a slope slides downwards along the slope integrally or dispersedly under the action of gravity along a certain sliding surface (namely a sliding surface) due to the influence of factors such as river scouring, artificial slope cutting, rainwater soaking, underground water activity or earthquake and the like. Landslide often causes great damage to industrial and agricultural production and property of people, even a devastating disaster, so that effective control of landslide is an important measure for avoiding landslide and ensuring life and property safety of people.
When the landslide prevention and treatment is carried out, the sliding range of the landslide, the position of a sliding surface or a sliding belt needs to be checked, then the shear strength parameter of a soil body of the sliding surface is calculated through inverse calculation, the landslide force under the landslide is calculated through the shear strength parameter, and finally corresponding retaining and reinforcing measures are adopted by combining the position of the sliding surface. Therefore, the determination of the slide surface of the slope body is the key of landslide control. The traditional sliding surface determination method is to judge through the distribution of slope rock soil, water content change and the like by utilizing a survey means, and is not visual and has great human factors. Therefore, at present, the inclinometer is mostly pre-buried at different positions of the slope body for measurement. The inclinometer pipe is composed of a plurality of sections of pipes which are sequentially and fixedly connected together through an external joint and a self-tapping screw, then the depth of the sliding surface of a monitoring point is obtained according to the deformation of the inclinometer pipe, and the connecting lines of the depths of the sliding surfaces of a plurality of inclinometer pipes with the same section are the sliding surface of the landslide.
The existing measuring method for the sliding displacement of the inclinometer pipe mainly comprises two methods, namely manual monitoring and automatic monitoring, wherein the manual monitoring is that workers arrive at the site at regular intervals and utilize a displacement monitoring probe to perform manual detection. Therefore, at present, an automatic monitoring mode is mostly adopted, namely, a displacement monitoring probe is preassembled at the bottom of each section of pipe of the inclinometer pipe, and the displacement change of the inclinometer pipe is monitored in real time through the displacement monitoring probe, so that the working efficiency and the safety performance are improved. However, since a plurality of displacement monitoring probes need to be pre-installed in each measuring tube, the equipment investment is high, and once the inclinometer tube is broken, the displacement monitoring probes below the sliding surface cannot be taken out, so that the cost is high and the waste is caused.
Disclosure of Invention
The invention aims to provide a landslide and landslide surface sliding displacement monitoring device and an installation method of the landslide and landslide surface sliding displacement monitoring device, which can realize automatic monitoring of landslide and surface sliding displacement, can recycle a displacement meter, a data acquisition instrument and a GPRS wireless transmission instrument even if an inclinometer pipe is broken, and has high economical efficiency.
In order to achieve the purpose, the invention adopts the following technical scheme:
the landslide and slide surface sliding displacement monitoring device comprises a inclinometer pipe which is embedded in a landslide and formed by fixedly connecting a plurality of pipe joints, wherein the top of the inclinometer pipe is provided with a bottom cover, the top of the inclinometer pipe is provided with a top cover, a wiring board is clamped in a bottom pipe body of each pipe joint, each wiring board is respectively anchored with a steel strand, and the steel strands on the wiring board below sequentially penetrate through holes formed in the wiring board above and the top cover and are converged with the steel strands anchored on the top cover to form a monitoring wiring harness; the top of the inclinometer pipe is provided with a protection box, the protection box is internally provided with displacement meters with the same number as the steel strands of the monitoring wire harness, one ends of the displacement meters are fixedly connected with the side wall of the protection box, and the other ends of the displacement meters are fixedly connected with the single steel strands in a one-to-one correspondence manner; still be provided with GPRS wireless transmission appearance and data acquisition appearance in the guard box, every the signal output part of displacement meter all with the data input part electricity of data acquisition appearance is connected, the data output part of data acquisition appearance with the data input part electricity of GPRS wireless transmission appearance is connected.
The displacement meter fixing support is arranged in the protection box at intervals, the displacement meters are arranged on the displacement meter fixing support at intervals, fixed pulleys the same as the steel strands in number are arranged on the wire harness fixing support at intervals, and each steel strand bypasses the fixed pulleys and is fixedly connected with the displacement meter corresponding to the position.
The wiring board is a steel plate with the thickness of 2-5 mm, and guide blocks matched with the inclinometer pipe guide grooves are arranged at the edge of each wiring board at intervals.
The measuring range of the displacement meter is more than or equal to 40cm.
The length of each pipe joint is 2-4 m.
The diameter of each steel strand is 1-3 mm.
The invention also provides an installation method of the landslide and slide surface sliding displacement monitoring device, which comprises the following steps:
the method comprises the following steps that firstly, a first wiring board is installed at the bottom of a first pipe joint, a first steel strand is anchored on the first wiring board, and then a bottom cover is installed; installing a second wiring board at the bottom of the second pipe joint, anchoring a second steel strand on the second wiring board, forming a through hole for leading out the first steel strand, and connecting the upper end of the first pipe joint with the bottom of the second pipe joint; repeating the operation to complete the connection of all the pipe joints; anchoring the last steel strand on the top cover, and fixedly connecting the top cover to the top of the last pipe joint after the steel strands anchored on the first to the last wiring boards penetrate out of the through hole formed in the top cover, so as to complete the assembly of the inclinometer pipe;
secondly, hoisting the inclinometer pipe in a pre-drilled mounting hole, backfilling cement mortar and vibrating to be compact, and finishing the mounting of the inclinometer pipe;
thirdly, building a protection box above the inclinometer pipe, arranging a displacement meter fixing bracket and a wire harness fixing bracket in the box body at intervals, and installing a data acquisition instrument and a GPRS wireless transmission instrument;
fourthly, installing the same number of displacement meters on a displacement meter fixing support according to the number of the steel strands, and installing the same number of fixed pulleys on the wire harness fixing support at positions corresponding to the displacement meters one by one;
fifthly, sequentially winding each steel strand through a fixed pulley, then connecting each steel strand with a displacement meter, fixedly connecting the other end of the displacement meter with the side wall of the protection box, and adjusting the steel strands to be in a tightening state after all the steel strands are connected;
and sixthly, electrically connecting the signal output ends of all the displacement meters with the data input end of a data acquisition instrument, and electrically connecting the data output end of the data acquisition instrument with the data input end of a GPRS wireless transmission instrument to complete the installation of the landslide and landslide surface sliding displacement monitoring device.
The invention has the advantages that the displacement change of each bundle of steel strands is acquired in real time by the data acquisition instrument, the displacement value acquired by the data acquisition instrument is transmitted to the upper computer or the mobile terminal by the GPRS wireless transmission instrument, and the landslide surface is determined by the displacement change of each steel strand, so that the automatic monitoring of the landslide surface is realized; because displacement meter, data acquisition appearance and GPRS wireless transmission appearance are installed on the landslide, even the deviational survey pipe fracture condition appears, can retrieve displacement meter, data acquisition appearance and GPRS wireless transmission appearance and reuse, reduce landslide surface control cost, economic nature is high.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 isbase:Sub>A schematic sectional view in an enlarged manner along the directionbase:Sub>A-base:Sub>A in fig. 1.
Figure 3 is a side view of the stringing board of figure 2.
Fig. 4 is a view showing the installation state of two adjacent pipe joints according to the present invention.
Detailed Description
The present invention will be described in more detail with reference to the following embodiments.
As shown in fig. 1-4, the landslide sliding surface sliding displacement monitoring device comprises an inclinometer 1 which is pre-embedded in a landslide and formed by fixedly connecting four pipe joints with the length of 2m, wherein the top of the inclinometer 1 is provided with a bottom cover 2, the top of the inclinometer 1 is provided with a top cover 3, a wiring board 4 is clamped in a bottom pipe body of each pipe joint, each wiring board 4 is fixedly anchored with a steel strand 5 with the diameter of 1-3 mm, and the steel strand 5 positioned on the lower wiring board 4 sequentially penetrates through holes formed in the upper wiring board 4 and the top cover 3 to be combined with the steel strand 5 anchored on the top cover 3 to form a monitoring wiring harness; the top of the inclinometer tube 1 is provided with a protection box 6, a displacement meter 7 which has the same number as the steel strands 5 of the monitoring wire harness and has a measuring range of 40cm is arranged in the protection box 6, one end of the displacement meter 7 is fixedly connected with the side wall of the protection box 6, and the other end of the displacement meter is fixedly connected with the single steel strand 5 in a one-to-one correspondence manner; still be provided with GPRS wireless transmission appearance 8 and data acquisition appearance 9 in the guard box 6, every the signal output part of displacement meter 7 all with the data input part electricity of data acquisition appearance 9 is connected, the data output part of data acquisition appearance 9 with the data input part electricity of GPRS wireless transmission appearance 8 is connected.
As shown in fig. 1, a displacement meter fixing support 10 and a wire harness fixing support 11 are arranged in a protection box 6 at intervals, displacement meters 7 are placed on the displacement meter fixing support 10 at intervals, fixed pulleys 12 with the same number as the steel strands 5 are arranged on the wire harness fixing support 11 at intervals, each steel strand 5 is fixedly connected with the displacement meter 7 corresponding to the position by bypassing the fixed pulleys 12, and it is ensured that five steel strands 5 are not wound in a crossed manner.
As shown in fig. 2 and 3, during actual installation, the stringing board 4 is a steel plate with a thickness of 2-5 mm, the outer contour of the steel plate is the same as the section contour of the pipe joint, four guide blocks 13 matched with the guide grooves of the inclinometer pipe 1 are arranged at the edge of the upper surface of the stringing board 4 at the bottom of the inclinometer pipe 1 at intervals, and four guide blocks 13 matched with the guide grooves of the inclinometer pipe 1 are respectively arranged on the upper surface and the lower surface of the rest three stringing boards 4.
The invention also provides an installation method of the landslide and slide surface sliding displacement monitoring device, which specifically comprises the following steps:
firstly, mounting a first stringing plate 4 at the bottom of a first pipe joint, anchoring a first steel strand 5 on the first stringing plate 4, mounting a bottom cover 2 by using a self-tapping screw, and sealing and winding by using a waterproof adhesive tape;
installing a second wiring board 4 at the bottom of the second pipe joint, clamping a guide block 13 on the upper surface of the second wiring board 4 in a guide groove of the second pipe joint, anchoring a second steel strand 5 on the second wiring board 4, forming a through hole for leading out the first steel strand 5, then connecting the upper end of the first pipe joint with the bottom of the second pipe joint, clamping the guide block 13 on the lower surface of the second wiring board 4 in the guide groove of the first pipe joint during connection, fixedly connecting the upper end of the first pipe joint and the bottom of the second pipe joint together by using an external joint 15 and a self-tapping screw, and then winding and sealing the connection part of the first pipe joint and the second pipe joint by using a waterproof adhesive tape to ensure the waterproof performance of the inclinometer 1;
repeating the operation to complete the connection of all the pipe joints; anchoring a fifth steel strand 5 on the top cover 3, and after the steel strands 5 anchored on the first to the last stringing boards 4 penetrate out of through holes formed in the top cover 3, fixedly connecting the top cover 3 to the top of the last pipe joint by using self-tapping screws to finish the assembly of the inclinometer 1;
secondly, hoisting the inclinometer 1 in a pre-drilled mounting hole (certainly, the inclinometer 1 can be installed and hoisted at the same time during actual construction, so that the assembly and hoisting of the inclinometer 1 are carried out synchronously), backfilling cement mortar and vibrating tightly to complete the installation of the inclinometer 1;
thirdly, building a protection box 6 above the inclinometer 1, installing a displacement meter fixing support 10 and a wire harness fixing support 11 in the box at intervals, and installing a data acquisition instrument 9 and a GPRS wireless transmission instrument 8;
fourthly, mounting the same number of displacement meters 7 (namely, placing five displacement meters 7 at intervals) on a displacement meter fixing support 10 according to the number (namely, five) of the steel strands 5, and mounting the same number of fixed pulleys 12 on the wire harness fixing support 11 at positions corresponding to the displacement meters 7 one by one;
fifthly, sequentially winding each steel strand 5 around a fixed pulley 12, then connecting each steel strand with a displacement meter 7, fixedly connecting the other end of the displacement meter 7 with the side wall of the protection box 6, and adjusting the steel strands to be in a tight state after all the steel strands 5 are connected;
sixthly, connecting the signal output ends of all the displacement meters 7 with the data input end of the data acquisition instrument 9 through a cable, and connecting the data output end of the data acquisition instrument 9 with the data input end of the GPRS wireless transmission instrument 8 through a cable, thereby completing the installation of the landslide and landslide surface sliding displacement monitoring device.
The GPRS wireless transmission instrument 8 is in communication connection with an upper computer such as a desktop computer or a mobile terminal such as a handheld panel in a monitoring room, and monitors the displacement change value of each steel strand 5 in real time, so that the displacement change of a landslide surface 14 is monitored in real time. When a sliding surface 14 of a landslide slides, the inclinometer 1 embedded below the sliding surface 14 is kept still, the inclinometer 1 located above the sliding surface 14 horizontally displaces, so that the steel strand 5 extends, the displacement meter 7 is pulled, the data acquisition instrument 9 acquires displacement data of the displacement meter 7 in real time and transmits the data to an upper computer in a monitoring room through the GPRS wireless transmission instrument 8, and the upper computer sorts the received data to obtain a displacement curve graph of a landslide body; the position of the displacement curve where sudden change occurs along the depth is the sliding surface 14, and when multiple sudden changes occur, the sliding surface 14 of the landslide is indicated to be multi-layer.
Claims (6)
1. The utility model provides a landslide surface slip displacement monitoring devices, includes pre-buried deviational survey pipe that forms by many tube couplings links firmly in the landslide, the top of deviational survey pipe is provided with the bottom, and the top is provided with top cap, its characterized in that: the bottom pipe body of each pipe joint is clamped with a wiring board, each wiring board is anchored with a steel strand, and the steel strands on the lower wiring board sequentially penetrate through holes formed in the upper wiring board and the top cover and are combined with the steel strands anchored on the top cover to form a monitoring wire harness; the top of the inclinometer pipe is provided with a protection box, the protection box is internally provided with displacement meters with the same number as the steel strands of the monitoring wire harness, one ends of the displacement meters are fixedly connected with the side wall of the protection box, and the other ends of the displacement meters are fixedly connected with the single steel strands in a one-to-one correspondence manner;
a GPRS wireless transmission instrument and a data acquisition instrument are also arranged in the protection box, the signal output end of each displacement meter is electrically connected with the data input end of the data acquisition instrument, and the data output end of the data acquisition instrument is electrically connected with the data input end of the GPRS wireless transmission instrument;
the edge of each stringing board is provided with guide blocks matched with the guide grooves of the inclinometer pipes at intervals;
the mounting method of the slope slip surface sliding displacement monitoring device comprises the following steps:
the method comprises the following steps that firstly, a first wiring board is installed at the bottom of a first pipe joint, a first steel strand is anchored on the first wiring board, then a bottom cover is installed, and waterproof adhesive tapes are used for sealing and winding; installing a second wiring board at the bottom of a second pipe joint, clamping a guide block on the upper surface of the second wiring board in a guide groove of the second pipe joint, anchoring a second steel strand on the second wiring board, forming a through hole for leading the first steel strand out, leading out the first steel, connecting the upper end of the first pipe joint with the bottom of the second pipe joint, clamping the guide block on the lower surface of the second wiring board in the guide groove of the first pipe joint during connection, winding and sealing the connection part of the first pipe joint and the second pipe joint by using a waterproof adhesive tape after fixedly connecting the upper end of the first pipe joint and the bottom of the second pipe joint by using an external joint and a self-tapping screw by using a stranded wire, and ensuring the waterproof performance of the inclinometer pipe;
repeating the operation to complete the connection of all the pipe joints; anchoring the last steel strand on the top cover, and after the steel strands anchored on the first to the last wiring boards penetrate out of the through holes formed in the top cover, fixedly connecting the top cover to the top of the last pipe joint by using self-tapping screws to complete the assembly of the inclinometer pipe;
secondly, hoisting the inclinometer pipe in a pre-drilled mounting hole, backfilling cement mortar and vibrating to be compact;
thirdly, building a protection box above the inclinometer pipe, arranging a displacement meter fixing bracket and a wire harness fixing bracket in the box body at intervals, and installing a data acquisition instrument and a GPRS wireless transmission instrument;
fourthly, installing the same number of displacement meters on a displacement meter fixing support according to the number of the steel strands, and installing the same number of fixed pulleys on the wire harness fixing support at positions corresponding to the displacement meters one by one;
fifthly, sequentially winding each steel strand through a fixed pulley, then connecting each steel strand with a displacement meter, fixedly connecting the other end of the displacement meter with the side wall of the protection box, and adjusting the steel strands to be in a tightening state after all the steel strands are connected;
sixthly, connecting the signal output ends of all the displacement meters with the data input end of a data acquisition instrument, and connecting the data output end of the data acquisition instrument with the data input end of a GPRS wireless transmission instrument to finish installation;
the GPRS wireless transmission instrument is in communication connection with an upper computer in a monitoring room, and is used for monitoring the displacement change value of each steel strand in real time, so that the displacement change of the sliding surface of the landslide is monitored in real time; when the sliding surface of the landslide slides, the inclinometer pipe embedded below the sliding surface is kept still, the inclinometer pipe positioned above the sliding surface horizontally displaces, so that the steel strand extends and pulls the displacement meter, the data acquisition instrument acquires the displacement data of the displacement meter in real time and transmits the data to the upper computer through the GPRS wireless transmission instrument, and the upper computer finishes the received data to obtain a displacement curve graph of the landslide body; the position of the displacement curve, where sudden change occurs along the depth, is the sliding surface, and when multiple sudden changes occur, the sliding surface of the landslide is a multilayer one.
2. The landslide surface sliding displacement monitoring device of claim 1, wherein: the displacement meter fixing support and the wire harness fixing support are arranged in the protection box at intervals, the displacement meters are arranged on the displacement meter fixing support at intervals, fixed pulleys the same with the steel strands in number are arranged on the wire harness fixing support at intervals, and each steel strand bypasses the fixed pulleys and is fixedly connected with the displacement meter corresponding to the position.
3. The landslide surface sliding displacement monitoring device of claim 1, wherein: the wiring board is a steel plate with the thickness of 2-5 mm.
4. The landslide surface sliding displacement monitoring device of claim 1, wherein: the measuring range of the displacement meter is more than or equal to 40cm.
5. The landslide surface sliding displacement monitoring device of claim 1, wherein: the length of each pipe joint is 2-4 m.
6. The landslide surface sliding displacement monitoring device of claim 1, wherein: the diameter of each steel strand is 1-3 mm.
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| CN201910747060.2A CN110345892B (en) | 2019-08-14 | 2019-08-14 | Landslide and landslide surface sliding displacement monitoring device and installation method thereof |
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| CN201910747060.2A CN110345892B (en) | 2019-08-14 | 2019-08-14 | Landslide and landslide surface sliding displacement monitoring device and installation method thereof |
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| CN110345892B true CN110345892B (en) | 2023-03-14 |
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Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4725950B2 (en) * | 2004-12-03 | 2011-07-13 | 日本工営株式会社 | Ground surface displacement measuring device |
| CN102607488B (en) * | 2012-02-23 | 2014-12-03 | 中国科学院力学研究所 | Device and method for monitoring displacement deformation of sliding surface of landslip |
| CN102878893B (en) * | 2012-09-05 | 2015-12-02 | 三峡大学 | Landslide depth displacement monitoring system and method |
| CN103591915B (en) * | 2013-11-25 | 2016-06-29 | 中国矿业大学(北京) | A kind of deep hole tension type multipoint displacement monitoring and warning system and construction method |
| CN109751975A (en) * | 2017-11-07 | 2019-05-14 | 深圳市北斗云信息技术有限公司 | A kind of full-automatic deep displacement inclinometer of more piece independent assortment |
| CN208309553U (en) * | 2018-06-04 | 2019-01-01 | 浙江省水利河口研究院 | Soft base deepwater diking deeply mixing cement-soil pile monitoring device |
| CN210036656U (en) * | 2019-08-14 | 2020-02-07 | 河南省交通规划设计研究院股份有限公司 | Landslide and slide surface sliding displacement monitoring device |
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