CN209802329U - monitoring devices suitable for deep big displacement of landslide - Google Patents
monitoring devices suitable for deep big displacement of landslide Download PDFInfo
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- CN209802329U CN209802329U CN201920400431.5U CN201920400431U CN209802329U CN 209802329 U CN209802329 U CN 209802329U CN 201920400431 U CN201920400431 U CN 201920400431U CN 209802329 U CN209802329 U CN 209802329U
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- landslide
- main controller
- measuring
- field bus
- displacement
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Abstract
The utility model discloses a monitoring device suitable for landslide deep large displacement, which comprises a plurality of measuring devices buried in the drill holes of the landslide body, a GPS monitoring device and a main controller, wherein the measuring devices buried in the drill holes are connected in series into a linear displacement measuring main body structure through a field bus, a telescopic pipe and a broken rope; the field bus is used for connecting the measuring device with the main controller, and the outside of the field bus is protected by the telescopic pipe and is not influenced by deformation and extrusion of the landslide body; when the rock-soil body is greatly deformed, the plurality of measuring devices can bear larger deformation due to the flexible structure design, meanwhile, the measured data are transmitted to the main controller positioned on the top of the slope through the field bus, and the main controller resolves the received measured data and the GPS position information to realize the monitoring of the deep large deformation of the landslide. The utility model relates to a technique and material are all comparatively ripe, and simple structure, reasonable in design have comparatively extensive application prospect.
Description
Technical Field
the utility model is suitable for a landslide displacement monitoring field especially relates to a monitoring devices that can be applicable to the deep big displacement of landslide.
background
Landslide deep displacement monitoring can form mechanism, failure mode and slip zone discernment for the landslide and provide data support, consequently in the research about the landslide, long-term deep displacement monitoring is an indispensable work, and comparatively common landslide deep displacement monitoring technique includes drilling displacement meter, drilling inclinometer, coaxial cable Time Domain Reflection (TDR), fiber grating etc.. However, the evolution process of the landslide is often accompanied by a large deformation characteristic, so that a huge acting force is generated on a monitoring instrument buried in the deep part of the landslide, particularly in the form of shearing and snapping, so that the instrument is damaged, and in order to realize the continuous monitoring on the time and space of the landslide evolution process, the monitoring equipment should have bearing performance of equivalent deformation. In summary, two major problems need to be solved in landslide depth displacement monitoring, and firstly, a measuring instrument can still normally work under the condition that a landslide body is greatly deformed; and secondly, the measuring instrument can carry out deep three-dimensional omnidirectional displacement measurement.
SUMMERY OF THE UTILITY MODEL
the to-be-solved technical problem of the utility model lies in, to prior art under the condition that the landslide body takes place big deformation, the measuring instrument very easily takes place to damage and can't carry out the displacement measurement's of the three-dimensional omnidirectional in deep defect, provides a monitoring devices that can be applicable to the deep big displacement of landslide.
the utility model provides a technical scheme that its technical problem adopted is: a monitoring device suitable for large displacement of the deep part of a landslide is constructed, and comprises a plurality of measuring devices, a GPS monitoring device and a main controller, wherein:
every two measuring devices are connected into a whole through a field bus, an extension tube and an easily-broken rope, and under the connecting action of the field bus, the extension tube and the easily-broken rope, a plurality of measuring devices are connected in series to form a linear displacement measuring main body structure;
The displacement measurement main body structure is embedded in a drill hole in the landslide body, wherein the bottom end of the displacement measurement main body structure needs to penetrate through the sliding surface, and the top end of the displacement measurement main body structure is fixed on a GPS monitoring device arranged at the hole of the drill hole;
The field bus is used for transmitting instructions and data and is positioned in the telescopic pipe, and the field bus is protected by the telescopic pipe and is not deformed and extruded by a landslide body;
the main controller is positioned near a drill hole arranged at the top of the slope and is connected to a measuring device positioned in the drill hole through a field bus;
the GPS monitoring device is located near the borehole aperture; the GPS monitoring equipment is connected to the main controller through a cable; the GPS monitoring equipment is used for monitoring the position information of the drilling hole opening and transmitting the position information to the main controller through a cable;
The plurality of measuring devices transmit the measured data to a main controller positioned on the top of the slope through a field bus, and the main controller calculates the received measured data and the hole position data to realize the monitoring of the deep large deformation of the landslide.
Furthermore, the easily-broken rope is tied between every two measuring devices, and the length of the easily-broken rope is equal to the natural extension length of the telescopic pipe arranged between the two measuring devices; the natural extension length of the extension tube is the extension length of the extension tube under the action of no external force;
the easy-to-break rope is used for preventing the telescopic pipe from generating larger initial stretching due to the self weight of the measuring device in the installation process of the measuring device, and the capacity of the measuring device for bearing large deformation is reduced.
further, each measuring device comprises two displacement compensation modules and an attitude module, wherein:
When the landslide body is greatly deformed, the spatial position of each measuring device and the landslide body are displaced in a coordinated mode, and the displacement compensation module senses the distance between two adjacent measuring devices; the attitude module obtains attitude information of each measuring device through an acceleration sensor and an electronic compass sensor arranged on the attitude module;
And the measured distance information and attitude information of each measuring device are transmitted to the main controller through the field bus, and the main controller combines the position information of the hole monitored by the GPS monitoring equipment to obtain the space position of each measuring device through comprehensive calculation, so that the deep large deformation of the landslide is monitored.
furthermore, the telescopic pipe adopts a steel wire framework rubber corrugated pipe, has higher rigidity in the circumferential direction, is not easy to flatten, and has stronger telescopic capacity in the axial direction;
The telescopic pipe is used for protecting a field bus in the pipe from being extruded by an external rock-soil body; when the landslide body is greatly deformed, according to the synchronous telescopic characteristic of the telescopic pipe, the field bus connected among the measuring devices is not influenced, the measuring devices and the rock-soil body keep cooperative displacement, and the measuring devices are effectively ensured to be suitable for the landslide body environment with large deformation.
Further, the main controller comprises a communication module, the communication module is a GPRS wireless transmission device, the communication module utilizes GPRS service to realize remote data transmission, and data monitored by each measuring device and the GPS monitoring device and a result of comprehensive settlement are transmitted to a receiving terminal to be stored and managed.
further, the distance that the bottom end of the displacement measurement main structure passes through the sliding surface is larger than 0.5 m.
a monitoring devices suitable for deep big displacement of landslide, related technique and material are all comparatively ripe, and its simple structure, reasonable in design have comparatively extensive application space.
Implement the utility model discloses a monitoring devices suitable for deep big displacement of landslide has following beneficial effect:
1. the utility model discloses place the displacement compensation module in each measuring device and make the measurement displacement compensation value more direct, strengthened local compensation ability, the size of slip plane position and deflection can more accurate definite simultaneously;
2. The field bus is placed in the telescopic pipe, and the high stress extrusion of the surrounding soil body hardly influences the free movement of the field bus when large deformation occurs, so that the device can effectively realize large displacement measurement.
drawings
The invention will be further explained with reference to the drawings and examples, wherein:
fig. 1 is an application schematic diagram of a landslide deep large displacement monitoring device provided by the present invention in a landslide;
Fig. 2 is a schematic structural diagram of a measuring device provided by the present invention;
Fig. 3 is a schematic view of the connection mode of the measuring device, the field bus, the telescopic tube and the easy-to-break rope provided by the present invention;
Fig. 4 is a schematic structural view of the conductive slip ring provided by the present invention.
In the figure: 00. a displacement measurement body structure; 1. a measuring device; 2. a telescopic pipe; 3. the rope is easy to break; 4. a GPS monitoring device; 5. a main controller; 6. a landslide body; 7. a sliding surface; 8. a measuring device housing; 9. a displacement compensation module; 10. a rotating shaft; 11. no torsion spring; 12. a drum; 13. a field bus; 14. a conductive slip ring; 15. a potentiometer; 16. a posture module; 17. an acceleration sensor; 18. an electronic compass; 19. A hub; 20. a stator; 21. a rotor; 22. a wire inlet; 23. an outlet; and (24) drilling holes.
Detailed Description
In order to clearly understand the technical features, objects, and effects of the present invention, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
please refer to fig. 1, which is an application schematic diagram of a large displacement monitoring device in deep landslide according to the present invention, including a plurality of measuring devices 1 and a main controller 5, wherein:
every two measuring devices 1 are connected into a whole through a field bus 13, an extension tube 2 and a breakable rope 3, and under the connecting action of the field bus 13, the extension tube 2 and the breakable rope 3, a plurality of measuring devices 1 are connected in series to form a linear displacement measuring main body structure 00;
in this embodiment, the measuring device is a flexible structure, and can realize cooperative deformation with the sliding mass;
The displacement measurement main structure 00 is embedded in a drill hole formed in the landslide body 6, wherein in the embodiment, the bottom end of the displacement measurement main structure 00 needs to penetrate through a sliding surface 7 by 0.5 meter, and the top end of the displacement measurement main structure 00 is fixed on a monitoring pier of the GPS monitoring equipment 4 arranged at the hole of the drill hole;
The field bus 13 is positioned in the telescopic pipe and used for transmitting instructions and data; the main controller 5 is positioned near a drill hole arranged on a slope surface, and the main controller 5 is connected to the measuring device 1 positioned in the drill hole through a field bus 13; in this embodiment, the main controller 5 can output 12v direct current to directly supply power to each measuring device 1 and the GPS monitoring device 4, the communication module included in the main controller 5 is a GPRS wireless transmission device, remote data transmission is realized by using a GPRS service, and data of each measuring device is transmitted to a receiving terminal for data storage and management;
when the landslide body is greatly deformed, a plurality of measuring devices 1 transmit measured data to a main controller 5 positioned on the top of the landslide through a field bus 13, a GPS monitoring device 4 transmits position information of the top of the landslide to the main controller 5 through a cable, and the main controller 5 resolves the received data to realize the monitoring of deep large deformation of the landslide; the large error of the trigonometric function integration method can be caused by the overlarge local deformation of the deep part of the landslide, and the correction can be carried out through the position information and the time-displacement curve characteristics of the orifice GPS monitoring equipment 4.
please refer to fig. 2, which is a schematic structural diagram of the measuring apparatus 1 provided by the present invention, a core component of the measuring apparatus 1 includes a displacement compensation module 9 and an attitude module 16; wherein:
The displacement compensation module 9 is composed of a rotating shaft 10, a non-torsion spring 11, a drum 12, a potentiometer 15, a conductive slip ring 14 and a field bus 13, in this embodiment, the field bus 13 is in an armored form, the field bus 13 is wound on the drum 12, when the landslide body 6 is largely deformed, a large relative displacement occurs between two adjacent measuring devices 1, the relative distance is increased, the extension tube 2 is forced to be stretched, and simultaneously the field bus 13 in the extension tube 2 is also stretched to generate a traction force, so that the drum 12 is driven to rotate, the purpose that the connection of the measuring unit 1 is not damaged under the condition of large landslide deformation is achieved, the rotation of the drum 12 drives the rotation of the potentiometer 15 to measure the rotation angle of the drum 12, so that the extension amount of the field bus 13 is obtained, and meanwhile, through the arrangement of the conductive slip ring 14, when the rotating shaft 10 rotates, the rotor 21 of the conductive slip ring 14 is driven to, the annular conductive coil arranged on the rotor ensures that the circuit connection of the wire inlet 22 and the wire outlet 23 is not interrupted when the rotor rotates;
The attitude module 16 consists of an acceleration sensor 17 and an electronic compass 18, wherein the acceleration sensor 17 is used for acquiring inclination angle information of the measuring device 1, the electronic compass 18 is used for acquiring inclination information of the measuring device 1, and the two are synthesized to be attitude information of the measuring unit;
the measurement information of the two modules is transmitted to the control center 5 on the earth surface through the field bus 13 for data storage, data calculation, remote data transmission and the like.
Wherein the measurement information of each measurement device 1 includes an initial distance L from the center position of each of two adjacent measurement devices0upper shift compensation length C1lower displacement compensation length C2Inclination T, inclination D;
In this embodiment, the displacement compensation modules 9 in the measurement device 1 adopt a redundant design structure, wherein each measurement device 1 includes two displacement compensation modules 9, so as to ensure that the measurement device 1 has good adaptability in a complex landslide body 6 structure, and simultaneously increase the displacement compensation capability of the measurement device 1, and according to the displacement value of the deep part of a common landslide, the compensation capability is not less than 2m/10m (within a depth range of 10m in the longitudinal direction, the transverse displacement is allowed to reach 2 m); the deep displacement of the landslide body is mainly horizontal displacement, the displacement in the vertical direction can be compensated through the displacement compensation module 9 of the measuring device 1, the multi-point inclination measuring principle is adopted, trigonometric function conversion is carried out according to the inclination, the inclination angle and the distance of the measuring device, and the vertical distribution of the landslide displacement is obtained through integration.
In this embodiment, the shell 8 of the measuring device 1 is made of a material with high rigidity and corrosion resistance, has strong waterproof capability, and can be in the shape of a cylinder, a cuboid, other regular polyhedrons and the like; the connecting part of the measuring device 1 and the extension tube 2 is connected by a water stop joint; the outer layer of the field bus 13 is a protective layer with high tensile strength.
please refer to fig. 3, which is a schematic view illustrating a connection mode of the measuring device 1, the fieldbus 13, the extension tube 2 and the breakable rope 3 according to the present invention, wherein the fieldbus 13 is disposed inside the extension tube 2, the breakable rope 3 is disposed beside the extension tube, and the length of the breakable rope 3 is consistent with the length of the extension tube 2 in a natural state; the easily broken rope 3 has smaller elasticity and is easily broken under the action of certain tension, the easily broken rope is used for resisting the problem that the telescopic pipe 2 is stretched due to the gravity action of equipment in the process of installing the displacement measuring main structure 00 into a drilling hole, and in the process of monitoring the displacement of the deep part of the landslide, the easily broken rope 3 can be broken under the smaller tension, so that the displacement compensation is not influenced.
in this embodiment, the telescopic pipe 2 is of a steel wire framework rubber structure, the diameter of the telescopic pipe 2 is as small as possible, the inner wall of the telescopic pipe 2 is provided with a lubricating coating, and the field bus 13 can freely move in the telescopic pipe 2.
Referring to fig. 4, which is a structural diagram of the conductive slip ring 14 of the present invention, the structural form is a cylindrical form, in this embodiment, the rotor 21 of the conductive slip ring 14 in the displacement compensation module 9 is fixedly connected to the rotating shaft 10, and the stator 20 is wrapped on the outer surface of the rotor 21, so that the conductive ring is not disconnected from the brush when the rotor 21 rotates, and therefore, the transmission of the power supply and the signal is not affected.
While the embodiments of the present invention have been described with reference to the accompanying drawings, the present invention is not limited to the above-described embodiments, which are merely illustrative and not restrictive, and many modifications may be made by one skilled in the art without departing from the spirit and scope of the present invention as defined in the appended claims.
Claims (6)
1. A monitoring device suitable for large displacement of deep part of landslide, comprising a plurality of measuring devices (1), a GPS monitoring device (4) and a main controller (5), wherein:
every two measuring devices (1) are connected into a whole through a field bus (13), an extension tube (2) and an easily-broken rope (3), and under the connecting action of the field bus (13), the extension tube (2) and the easily-broken rope (3), a plurality of measuring devices (1) are connected in series to form a linear displacement measuring main body structure (00);
The displacement measurement main body structure (00) is embedded in a drill hole (23) on the landslide body, wherein the bottom end of the displacement measurement main body structure (00) needs to penetrate through the sliding surface (7), and the top end of the displacement measurement main body structure is fixed on a GPS monitoring device (4) arranged at the hole of the drill hole (23);
The field bus (13) is used for transmitting instructions and data and is positioned in the telescopic pipe (2), and the field bus (13) is protected by the telescopic pipe (2) and is not deformed and extruded by a landslide body;
the main controller (5) is positioned near a drill hole arranged at the top of the slope, and the main controller (5) is connected to the measuring device (1) positioned in the drill hole through a field bus (13);
The GPS monitoring device (4) is located near the borehole (23) aperture; the GPS monitoring device (4) is connected to the main controller (5) through a cable; the GPS monitoring device (4) is used for monitoring the position information of the drilling hole and transmitting the position information to the main controller (5) through a cable;
the plurality of measuring devices (1) transmit the measuring data to a main controller (5) positioned on the top of the slope through a field bus (13), and the main controller (5) resolves the received measuring data and the hole position data to realize the monitoring of deep large deformation of the landslide.
2. A device according to claim 1, characterized in that said frangible line (3) is tied between each two measuring devices (1) and has a length equal to the natural extension of the telescopic tube (2) between the two measuring devices (1); the natural extension length of the extension tube (2) is the extension length of the extension tube (2) under the action of no external force.
3. the monitoring device according to claim 1, characterized in that each measuring device (1) comprises two displacement compensation modules (9) and one attitude module (16), wherein:
When the landslide body is greatly deformed, the spatial position of each measuring device (1) and the landslide body are displaced in a coordinated mode, and the displacement compensation module senses the distance between two adjacent measuring devices; the attitude module obtains attitude information of each measuring device through an acceleration sensor and an electronic compass sensor arranged on the attitude module;
The distance information and the attitude information which are measured by each measuring device (1) are transmitted to the main controller (5) through the field bus (13), and the main controller (5) combines the hole position information monitored by the GPS monitoring equipment (4) to obtain the space position of each measuring device (1) through comprehensive calculation, thereby realizing the monitoring of the deep large deformation of the landslide.
4. The monitoring device according to claim 1, wherein the telescopic tube (2) is a steel wire framework rubber corrugated tube, and the telescopic tube (2) has larger rigidity in the circumferential direction, is not easy to be flattened and has stronger telescopic capability in the axial direction;
The telescopic pipe (2) is used for protecting a field bus (13) in the pipe from being extruded by an external rock-soil body.
5. the monitoring device according to claim 1, wherein the main controller (5) comprises a communication module, the communication module is a GPRS wireless transmission device, the communication module utilizes GPRS service to realize remote data transmission, and transmits data monitored by each measuring device (1) and the GPS monitoring device (4) and a result of comprehensive settlement to a receiving terminal for data storage and management.
6. a device as claimed in claim 1, wherein the bottom end of the main structure (00) crosses below the sliding surface by a distance greater than 0.5 m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920400431.5U CN209802329U (en) | 2019-03-27 | 2019-03-27 | monitoring devices suitable for deep big displacement of landslide |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920400431.5U CN209802329U (en) | 2019-03-27 | 2019-03-27 | monitoring devices suitable for deep big displacement of landslide |
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| Publication Number | Publication Date |
|---|---|
| CN209802329U true CN209802329U (en) | 2019-12-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920400431.5U Withdrawn - After Issue CN209802329U (en) | 2019-03-27 | 2019-03-27 | monitoring devices suitable for deep big displacement of landslide |
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| CN (1) | CN209802329U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110006383A (en) * | 2019-03-27 | 2019-07-12 | 中国地质大学（武汉） | A kind of monitoring device suitable for landslide depth big displacement |
| CN112097726A (en) * | 2020-09-16 | 2020-12-18 | 淮南矿业(集团)有限责任公司 | Device and method for measuring expansion deformation of protected layer |
-
2019
- 2019-03-27 CN CN201920400431.5U patent/CN209802329U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110006383A (en) * | 2019-03-27 | 2019-07-12 | 中国地质大学（武汉） | A kind of monitoring device suitable for landslide depth big displacement |
| CN112097726A (en) * | 2020-09-16 | 2020-12-18 | 淮南矿业(集团)有限责任公司 | Device and method for measuring expansion deformation of protected layer |
| CN112097726B (en) * | 2020-09-16 | 2021-10-01 | 淮南矿业(集团)有限责任公司 | Device and method for measuring expansion deformation of protected layer |
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Legal Events
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| AV01 | Patent right actively abandoned |
Granted publication date: 20191217 Effective date of abandoning: 20210618 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20191217 Effective date of abandoning: 20210618 |
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| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |