Chain type landslide mass deformation monitoring device and method

Abstract

The invention relates to a chain type landslide mass deformation monitoring device and method, and belongs to the technical field of soil deformation monitoring. Comprising a concrete base, a Beidou positioning mechanism, a plurality of telescopic extension mechanisms, a monitoring data primary processing cabinet, a plurality of first connecting mechanisms and a plurality of second connecting mechanisms; the Beidou positioning mechanism is arranged on the concrete base, the multiple telescopic extension mechanisms are connected end to end through the second connecting mechanisms and form multiple chain structures used for monitoring landslide mass deformation, and the multiple chain structures are installed on the concrete base through the first connecting mechanisms. The monitoring data primary processing cabinet is installed on the concrete base and connected with the telescopic extension mechanism. According to the invention, multi-point monitoring of the landslide mass around the concrete base is facilitated, long-time and multi-point monitoring of deformation of the landslide mass is realized, and the monitoring effect is improved.

Description

Technical Field

[0001] The invention relates to the technical field of soil deformation monitoring, and in particular to a chain-type landslide deformation monitoring device and method. Background Art

[0002] Landslide refers to the phenomenon that the rock mass slides down along a certain sliding surface or sliding zone under the action of gravity. The sliding surface or sliding zone is located deep in the soil and cannot be directly measured. The existing technology generally uses the surface deformation data of the landslide body to characterize the overall stability of the landslide body.

[0003] Deformation monitoring of landslides is a long process. Traditional manual inclinometers and total station monitoring methods cannot meet the needs of long-term monitoring. Although Beidou satellite monitoring can achieve autonomous long-term monitoring, it has defects such as high monitoring cost, poor adaptability, and limited monitoring range (single-point monitoring). It is impossible to achieve distributed overall monitoring of the surface deformation of the entire landslide body in engineering. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide a chain-type landslide deformation monitoring device and method to solve the above-mentioned problem.

[0005] The technical solution of the present invention to solve the above technical problems is as follows: a chain-type landslide deformation monitoring device, comprising: a concrete base, a Beidou positioning mechanism, a plurality of telescopic extension mechanisms, a monitoring data primary processing cabinet, a plurality of first connecting mechanisms and a plurality of second connecting mechanisms; the Beidou positioning mechanism is arranged on the concrete base, the plurality of telescopic extension mechanisms are connected end to end through the second connecting mechanism, and form a plurality of chain structures for monitoring the deformation of the landslide body, the plurality of chain structures are installed on the concrete base through the first connecting mechanism, the monitoring data primary processing cabinet is installed on the concrete base and connected to the telescopic extension mechanism; the Beidou positioning mechanism is provided with a Beidou signal receiving transmitter and a chassis assembly, the Beidou signal receiving transmitter is connected to the chassis assembly, the telescopic extension mechanism is provided with a MEMS sensor placement block and a laser ranging sensor, the MEMS sensor is provided in the MEMS sensor placement block, and the MEMS sensor and the laser ranging sensor are both connected to the monitoring data primary processing cabinet.

[0006] The beneficial effects of the present invention are as follows: the chain structure formed by connecting the multiple telescopic extension mechanisms end to end through the second connecting mechanism is conducive to the use of MEMS sensor placement blocks and laser ranging sensors to perform multi-point monitoring of the landslide body around the concrete base. At the same time, in conjunction with the Beidou positioning mechanism and the primary processing cabinet for monitoring data, it is conducive to processing the monitoring data, realizing long-term, multi-point monitoring of the deformation of the landslide body, and improving the monitoring effect.

[0007] Based on the above technical solution, the present invention can also be improved as follows.

[0008] Furthermore, a vertical pole mounting hole is provided at the top of the concrete base, and a plurality of connecting mechanism mounting holes are provided at the side walls and the bottom of the concrete base. The Beidou positioning mechanism is adapted to be installed in the vertical pole mounting hole, and the first connecting mechanism is adapted to be installed in the connecting mechanism mounting hole and is connected to the telescopic extension mechanism.

[0009] The beneficial effect of adopting the above further scheme is: the pole mounting hole is conducive to installing the Beidou positioning mechanism on the concrete base, so as to realize the coordinate determination of the Beidou monitoring base point; the connecting mechanism mounting hole cooperates with the first connecting mechanism to facilitate installing multiple chain structures for monitoring the deformation of the landslide body on the concrete base, so as to realize multi-point landslide monitoring around the Beidou monitoring base point.

[0010] Furthermore, the Beidou positioning mechanism also includes: a vertical pole, a plurality of vertical pole fixing blocks, a monitoring element mounting platform and a chassis assembly support frame; the plurality of vertical pole fixing blocks are arranged around the bottom end side wall of the vertical pole, the vertical pole and the plurality of vertical pole fixing blocks are adapted to be installed in the vertical pole mounting hole, the monitoring element mounting platform is arranged at the top end of the vertical pole, the Beidou signal receiving transmitter is installed at the top end of the monitoring element mounting platform, the chassis assembly support frame is installed on the side wall of the vertical pole, the chassis assembly is installed on the chassis assembly support frame, the vertical pole and the chassis assembly support frame are both hollow structures, and the Beidou signal receiving transmitter is connected to the chassis assembly via wires arranged in the vertical pole and the chassis assembly support frame.

[0011] The beneficial effect of adopting the above further scheme is that the chassis assembly is conducive to providing power for the operation of the Beidou signal receiving and transmitting device and transmitting the signal of the Beidou signal receiving and transmitting device to the data transmission relay station, thereby realizing the determination of the coordinates of the Beidou monitoring base point.

[0012] Furthermore, the first connecting mechanism includes: a connecting piece shell, a first steel wire fixing block and a steel wire; the connecting piece shell is a hollow spherical structure adapted to be arranged in the mounting hole of the connecting mechanism, and a steel wire lead-out hole is arranged on the side wall; the first steel wire fixing block is arranged inside the connecting piece shell, and the two ends of the steel wire are connected to the first steel wire fixing block and the telescopic extension mechanism one by one.

[0013] The beneficial effect of adopting the above further solution is that the steel wire is conducive to fixing the first-stage telescopic extension mechanism in the chain structure used for monitoring the deformation of the landslide body to the connector housing, thereby fixing the chain structure on the concrete base.

[0014] Furthermore, the telescopic extension mechanism also includes: a telescopic inner rod assembly, a telescopic middle rod assembly and a telescopic outer rod assembly; the telescopic outer rod assembly, the telescopic middle rod assembly and the telescopic inner rod assembly are slidably sleeved in sequence, the MEMS sensor placement block is installed at one end of the telescopic outer rod assembly away from the telescopic middle rod assembly, the second connecting mechanism is arranged on the MEMS sensor placement block, and the end of the telescopic inner rod assembly away from the telescopic middle rod assembly is connected to the first connecting mechanism.

[0015] The beneficial effect of adopting the above further scheme is that the telescopic outer rod assembly, the telescopic middle rod assembly and the telescopic inner rod assembly are slidably connected in sequence, which is conducive to making the chain structure used to monitor the deformation of the landslide body adapt to changes in terrain. The MEMS sensor placement block is conducive to placing MEMS sensors, and real-time monitoring of the three-dimensional acceleration change value and the three-dimensional inclination value of the MEMS monitoring point. Multiple MEMS monitoring points on multiple chain structures are conducive to all-round monitoring of the surrounding soil of the concrete base.

[0016] Furthermore, the telescopic inner rod assembly also includes: a telescopic inner rod, a plurality of telescopic inner rod slide grooves, a semicircular metal ball joint and a second steel wire fixing block; the telescopic inner rod is a tubular structure, a plurality of the telescopic inner rod slide grooves are arranged around the outer wall of the telescopic inner rod, the semicircular metal ball joint is adapted to be arranged inside an end of the telescopic inner rod away from the telescopic middle rod assembly, the second steel wire fixing block and the laser ranging sensor are arranged on both sides of the semicircular metal ball joint in a one-to-one correspondence, the semicircular metal ball joint cover is arranged on the connector housing, the second steel wire fixing block passes through the steel wire lead-out hole, and the steel wire is connected to the second steel wire fixing block.

[0017] The beneficial effect of adopting the above further scheme is that the semicircular metal ball joint is beneficial to provide support for the installation of the laser ranging sensor on the one hand, so as to realize the monitoring of the telescopic displacement of the MEMS monitoring point; on the other hand, it is beneficial to cover it on the outer shell of the connector and fix it to the first connecting mechanism through a steel wire, thereby fixing the telescopic extension mechanism on the concrete base.

[0018] Furthermore, the telescopic middle rod assembly includes: a telescopic middle rod, a plurality of telescopic middle rod outer grooves and a plurality of telescopic middle rod inner grooves; the telescopic middle rod is a tubular structure, a plurality of the telescopic middle rod outer grooves are arranged on the outer wall of the telescopic middle rod, a plurality of the telescopic middle rod inner grooves are arranged on the inner wall of the telescopic middle rod, a plurality of the telescopic middle rod inner grooves and a plurality of the telescopic inner rod grooves correspond one to one, and are connected by ball sliding.

[0019] The beneficial effect of adopting the above further scheme is that the inner slide groove of the telescopic middle rod and the slide groove of the telescopic inner rod are connected by ball sliding, which is conducive to the relative sliding between the telescopic middle rod assembly and the telescopic inner rod assembly, thereby adapting to the deformation of the soil.

[0020] Furthermore, the telescopic outer rod assembly includes a telescopic outer rod and a plurality of telescopic outer rod inner grooves; the plurality of telescopic outer rod inner grooves are arranged around the inner wall of the telescopic outer rod, the plurality of telescopic outer rod inner grooves correspond one to one with the plurality of telescopic middle rod outer grooves, and are connected by the ball sliding.

[0021] The beneficial effect of adopting the above further scheme is that the inner slide groove of the telescopic outer rod and the outer slide groove of the telescopic middle rod are connected by ball sliding, which is conducive to the relative sliding between the telescopic middle rod assembly and the telescopic outer rod assembly, thereby adapting to the deformation of the soil.

[0022] Another technical solution of the present invention to solve the above technical problem is as follows: A method for monitoring deformation of a chain landslide body comprises the following steps:

[0023] S1: Arrange Beidou monitoring base points on the slope to be monitored;

[0024] S2: Arrange multiple MEMS monitoring points around the Beidou monitoring base point through multiple chain structures;

[0025] S3: Collecting the Beidou monitoring base point position coordinates S0 fed back in real time by the Beidou signal receiving transmitter through the chassis assembly;

[0026] S4: Collecting the three-dimensional acceleration change values ​​a of the multiple MEMS monitoring points fed back in real time by the MEMS sensor through the primary data processing cabinet x 、a y 、a z And the three-dimensional inclination value α 、 β, γ;

[0027] S5: collecting the telescopic displacement S of multiple telescopic extension mechanisms fed back in real time by the laser ranging sensor through the monitoring data primary processing cabinet;

[0028] S6: The real-time data in steps S3 to S5 are aggregated and packaged through the data transmission relay station and sent to the data processing terminal;

[0029] S7: The data processing terminal processes the real-time data transmitted in step S6 and outputs the displacement change S of the MEMS monitoring point. n ;

[0030] S8: The data processing terminal processes the displacement change S exceeding the warning value in step S7. n Give a warning.

[0031] The beneficial effect of the present invention is that by calculating the monitoring data of the MEMS monitoring points, it is beneficial to monitor the deformation of the soil around the Beidou monitoring base point in real time and make a judgment, thereby facilitating the staff to directly locate the deformed soil area.

[0032] Further, in step S7, the real-time data is processed using the following formula:

[0033]

[0034] Among them, ΔS xn The MEMS monitoring point is at T n The displacement increment in the X direction at the moment, ΔS yn The MEMS monitoring point is at T n The displacement increment in the Y direction at time ΔS zn The MEMS monitoring point is at T n The displacement increment in the Z direction at the moment, n is the time of monitoring data, v xt0 is the movement speed of the MEMS monitoring point in the X direction at the initial moment, v yt0 is the motion speed of the MEMS monitoring point in the Y direction at the initial moment, v zt0 is the movement speed of the MEMS monitoring point in the Z direction at the initial moment, Δt is the time interval between processing two data, and a xt0 、a xt1 、a xt2 、a xt(n-1) The MEMS monitoring point at the initial time, T1, T2...T (n-1) The acceleration in the X direction at the moment, a yt0 、a yt1 、a yt2 、a yt(n-1) The MEMS monitoring point at the initial time, T1, T2...T (n-1) The acceleration in the Y direction at time a zt0 、a zt1 、a zt2 、a zt(n-1) The MEMS monitoring point at the initial time, T1, T2...T (n-1) The acceleration in the Z direction at time.

[0035] The beneficial effect of adopting the above further scheme is that it is conducive to calculating the displacement of the MEMS monitoring point in the three-dimensional space at different time nodes, and comparing it with the previous time node to obtain the displacement increment of the MEMS monitoring point within a monitoring time period. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1A schematic diagram of the overall structure of a monitoring device provided by an embodiment of the present invention;

[0037] Figure 2 A schematic structural diagram of a concrete base provided by an embodiment of the present invention;

[0038] Figure 3 A schematic structural diagram of a first connecting mechanism provided in an embodiment of the present invention;

[0039] Figure 4 A schematic diagram of the structure of a Beidou positioning mechanism provided by an embodiment of the present invention;

[0040] Figure 5 A schematic diagram of the structure of a telescopic extension mechanism provided in an embodiment of the present invention;

[0041] Figure 6 A schematic diagram of the structure of the telescopic inner rod assembly provided in an embodiment of the present invention Figure 1 ;

[0042] Figure 7 A schematic diagram of the structure of the telescopic inner rod assembly provided in an embodiment of the present invention Figure 2 ;

[0043] Figure 8 A schematic structural diagram of a telescopic middle rod assembly provided in an embodiment of the present invention;

[0044] Fig. 9 A schematic diagram of the connection between the telescopic outer rod assembly, the MEMS sensor placement block and the second connection mechanism provided in an embodiment of the present invention;

[0045] Fig.10 A flow chart of a monitoring method provided by an embodiment of the present invention.

[0046] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0047] 1. Concrete base; 2. Beidou positioning mechanism; 3. Telescopic extension mechanism; 4. Monitoring data primary processing cabinet; 5. First connecting mechanism; 6. Second connecting mechanism; 11. Pole mounting hole; 12. Connecting mechanism mounting hole; 21. Pole; 22. Pole fixing block; 23. Monitoring element mounting platform; 24. Beidou signal receiving and transmitting device; 25. Chassis assembly; 26. Chassis assembly support frame; 31. Telescopic inner rod assembly; 32. Telescopic middle rod assembly; 33. Telescopic outer rod assembly; 34 , MEMS sensor placement block; 51, connector housing; 52, first steel wire fixing block; 53, steel wire lead-out hole; 54, steel wire; 311, telescopic inner rod; 312, telescopic inner rod slide groove; 313, semicircular metal ball joint; 314, second steel wire fixing block; 315, laser ranging sensor; 321, telescopic middle rod; 322, telescopic middle rod outer slide groove; 323, telescopic middle rod inner slide groove; 324, ball bearing; 331, telescopic outer rod; 332, telescopic outer rod inner slide groove. DETAILED DESCRIPTION

[0048] The principles and features of the present invention are described below. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0049] like Figures 1 to 9 As shown, a chain-type landslide deformation monitoring device comprises: a concrete base 1, a Beidou positioning mechanism 2, a plurality of telescopic extension mechanisms 3, a monitoring data primary processing cabinet 4, a plurality of first connecting mechanisms 5 and a plurality of second connecting mechanisms 6; the Beidou positioning mechanism 2 is arranged on the concrete base 1, and the plurality of telescopic extension mechanisms 3 are connected end to end through the second connecting mechanism 6 to form a plurality of chain structures for monitoring the deformation of the landslide body, and the plurality of chain structures are installed on the concrete base 1 through the first connecting mechanism 5, and the monitoring data primary processing cabinet 4 is installed on the concrete base 1 and connected to the telescopic extension mechanism 3; a Beidou signal receiving transmitter 24 and a chassis assembly 25 are arranged in the Beidou positioning mechanism 2, and the Beidou signal receiving transmitter 24 is connected to the chassis assembly 25, and a MEMS sensor placement block 34 and a laser ranging sensor 315 are arranged in the telescopic extension mechanism 3, and a MEMS sensor is arranged in the MEMS sensor placement block 34, and the MEMS sensor and the laser ranging sensor 315 are both connected to the monitoring data primary processing cabinet 4.

[0050] It should be noted that: in the technical solution of the present invention, the second connecting mechanism 6 has the same structure as the first connecting mechanism 5, so “the multiple telescopic extension mechanisms 3 are connected end to end through the second connecting mechanism 6” means that the second steel wire fixing block 314 on one of the telescopic extension mechanisms 3 passes through the steel wire lead-out hole on another second connecting mechanism 6 installed on the telescopic extension mechanism 3, and is connected to the first steel wire fixing block on the second connecting mechanism 6, so as to realize the end to end series connection of the multiple telescopic extension mechanisms 3 through the second connecting mechanism 6;

[0051] MEMS sensors are existing products. Their full Chinese and English names are Micro-Electro-Mechanical System, micro-electromechanical system.

[0052] The beneficial effects of the present invention are as follows: the chain structure formed by connecting the multiple telescopic extension mechanisms end to end through the second connecting mechanism is conducive to the use of MEMS sensor placement blocks and laser ranging sensors to perform multi-point monitoring of the landslide body around the concrete base. At the same time, in conjunction with the Beidou positioning mechanism and the primary processing cabinet for monitoring data, it is conducive to processing the monitoring data, realizing long-term, multi-point monitoring of the deformation of the landslide body, and improving the monitoring effect.

[0053] Preferably, Figure 2 As shown, a pole mounting hole 11 is provided at the top of the concrete base 1, and a plurality of connecting mechanism mounting holes 12 are provided at the side walls and the bottom end of the concrete base 1. The Beidou positioning mechanism 2 is adapted to be installed in the pole mounting hole 11, and the first connecting mechanism 5 is adapted to be installed in the connecting mechanism mounting hole 12 and is connected to the telescopic extension mechanism 3.

[0054] The beneficial effects of adopting the above-mentioned preferred scheme are: the pole mounting hole is conducive to installing the Beidou positioning mechanism on the concrete base, so as to realize the coordinate determination of the Beidou monitoring base point; the connecting mechanism mounting hole cooperates with the first connecting mechanism to facilitate installing multiple chain structures for monitoring the deformation of the landslide body on the concrete base, so as to realize multi-point landslide monitoring around the Beidou monitoring base point.

[0055] Preferably, Figure 4As shown, the Beidou positioning mechanism 2 also includes: a pole 21, a plurality of pole fixing blocks 22, a monitoring element mounting platform 23 and a chassis assembly support frame 26; the plurality of pole fixing blocks 22 are arranged around the bottom side wall of the pole 21, the pole 21 and the plurality of pole fixing blocks 22 are adapted to be mounted in the pole mounting hole 11, the monitoring element mounting platform 23 is arranged at the top of the pole 21, the Beidou signal receiving transmitter 24 is mounted on the top of the monitoring element mounting platform 23, the chassis assembly support frame 26 is mounted on the side wall of the pole 21, the chassis assembly 25 is mounted on the chassis assembly support frame 26, the pole 21 and the chassis assembly support frame 26 are both hollow structures, and the Beidou signal receiving transmitter 24 is connected to the chassis assembly 25 via wires arranged in the pole 21 and the chassis assembly support frame 26.

[0056] The beneficial effect of adopting the above-mentioned preferred scheme is that the chassis assembly is conducive to providing power for the operation of the Beidou signal receiving and transmitting device and transmitting the signal of the Beidou signal receiving and transmitting device to the data transmission relay station, thereby realizing the determination of the coordinates of the Beidou monitoring base point.

[0057] Preferably, Figure 3 As shown, the first connecting mechanism 5 includes: a connecting piece shell 51, a first steel wire fixing block 52 and a steel wire 54; the connecting piece shell 51 is a hollow spherical structure adapted to be arranged in the connecting mechanism mounting hole 12, and a steel wire lead-out hole 53 is arranged on the side wall, the first steel wire fixing block 52 is arranged inside the connecting piece shell 51, and the two ends of the steel wire 54 are connected to the first steel wire fixing block 52 and the telescopic extension mechanism 3 in a one-to-one correspondence.

[0058] The beneficial effect of adopting the above preferred solution is that the steel wire is conducive to fixing the first-stage telescopic extension mechanism in the chain structure used for monitoring the deformation of the landslide body to the connector housing, thereby fixing the chain structure on the concrete base.

[0059] Preferably, Figure 5 As shown, the telescopic extension mechanism 3 also includes: a telescopic inner rod assembly 31, a telescopic middle rod assembly 32 and a telescopic outer rod assembly 33; the telescopic outer rod assembly 33, the telescopic middle rod assembly 32 and the telescopic inner rod assembly 31 are slidably sleeved in sequence, the MEMS sensor placement block 34 is installed at one end of the telescopic outer rod assembly 33 away from the telescopic middle rod assembly 32, the second connecting mechanism 6 is arranged on the MEMS sensor placement block 34, and the end of the telescopic inner rod assembly 31 away from the telescopic middle rod assembly 32 is connected to the first connecting mechanism 5.

[0060] Among them, it should be noted that: in the technical solution of the present invention, "the telescopic outer rod assembly 33, the telescopic middle rod assembly 32 and the telescopic inner rod assembly 31 are slidably sleeved in sequence" means that the telescopic outer rod assembly 33 is slidably sleeved on the telescopic middle rod assembly 32, and the telescopic middle rod assembly 32 is slidably sleeved on the telescopic inner rod assembly 31.

[0061] The beneficial effects of adopting the above-mentioned preferred scheme are: the telescopic outer rod assembly, the telescopic middle rod assembly and the telescopic inner rod assembly are slidably connected in sequence, which is conducive to making the chain structure used to monitor the deformation of the landslide body adapt to changes in terrain, and the MEMS sensor placement block is conducive to placing the MEMS sensor, and real-time monitoring of the three-dimensional acceleration change value and the three-dimensional inclination value of the MEMS monitoring point, and multiple MEMS monitoring points on multiple chain structures are conducive to all-round monitoring of the surrounding soil of the concrete base.

[0062] Preferably, Figure 6 and Figure 7 As shown, the telescopic inner rod assembly 31 also includes: a telescopic inner rod 311, a plurality of telescopic inner rod slots 312, a semicircular metal ball joint 313 and a second steel wire fixing block 314; the telescopic inner rod 311 is a tubular structure, and a plurality of the telescopic inner rod slots 312 are arranged around the outer wall of the telescopic inner rod 311, the semicircular metal ball joint 313 is adapted to be arranged inside one end of the telescopic inner rod 311 away from the telescopic middle rod assembly 32, the second steel wire fixing block 314 and the laser ranging sensor 315 are arranged on both sides of the semicircular metal ball joint 313 in a one-to-one correspondence, the semicircular metal ball joint 313 is covered on the connector housing 51, the second steel wire fixing block 314 passes through the steel wire lead-out hole 53, and the steel wire 54 is connected to the second steel wire fixing block 314.

[0063] The beneficial effects of adopting the above-mentioned preferred scheme are: on the one hand, the semicircular metal ball joint is conducive to providing support for the installation of the laser ranging sensor to realize the monitoring of the telescopic displacement of the MEMS monitoring point; on the other hand, it is conducive to the cover being installed on the connecting part housing and fixed to the first connecting mechanism through a steel wire, thereby fixing the telescopic extension mechanism on the concrete base.

[0064] Preferably, Figure 8 As shown, the telescopic middle rod assembly 32 includes: a telescopic middle rod 321, multiple telescopic middle rod outer grooves 322 and multiple telescopic middle rod inner grooves 323; the telescopic middle rod 321 is a tubular structure, multiple telescopic middle rod outer grooves 322 are arranged on the outer wall of the telescopic middle rod 321, multiple telescopic middle rod inner grooves 323 are arranged on the inner wall of the telescopic middle rod 321, multiple telescopic middle rod inner grooves 323 and multiple telescopic inner rod grooves 312 correspond one by one, and are slidably connected through balls 324.

[0065] The beneficial effect of adopting the above preferred solution is that the inner slide groove of the telescopic middle rod and the slide groove of the telescopic inner rod are connected by ball sliding, which is conducive to the relative sliding between the telescopic middle rod assembly and the telescopic inner rod assembly, thereby adapting to the deformation of the soil.

[0066] Preferably, Fig. 9 As shown, the telescopic outer rod assembly 33 includes a telescopic outer rod 331 and a plurality of telescopic outer rod inner grooves 332; the plurality of telescopic outer rod inner grooves 332 are arranged around the inner wall of the telescopic outer rod 331, the plurality of telescopic outer rod inner grooves 332 and the plurality of telescopic middle rod outer grooves 322 correspond one to one, and are slidably connected through the ball bearings 324.

[0067] The beneficial effect of adopting the above preferred solution is that the inner slide groove of the telescopic outer rod and the outer slide groove of the telescopic middle rod are connected by ball sliding, which is conducive to the relative sliding between the telescopic middle rod assembly and the telescopic outer rod assembly, thereby adapting to the deformation of the soil.

[0068] like Fig.10 As shown, a chain landslide deformation monitoring method comprises the following steps:

[0069] S1: Arrange Beidou monitoring base points on the slope to be monitored;

[0070] S2: Arrange multiple MEMS monitoring points around the Beidou monitoring base point through multiple chain structures;

[0071] S3: collecting the Beidou monitoring base point position coordinate S0 fed back in real time by the Beidou signal receiving and transmitting device 24 through the chassis assembly 25;

[0072] S4: Collecting the three-dimensional acceleration change values ​​a of the multiple MEMS monitoring points fed back in real time by the monitoring data primary processing cabinet 4 x 、a y 、a z And the three-dimensional inclination value α 、 β, γ;

[0073] S5: collecting the telescopic displacement S of the multiple telescopic extension mechanisms 3 fed back in real time by the laser ranging sensor 315 through the monitoring data primary processing cabinet 4;

[0074] S6: The real-time data in steps S3 to S5 are aggregated and packaged through the data transmission relay station and sent to the data processing terminal;

[0075] S7: The data processing terminal processes the real-time data transmitted in step S6 and outputs the displacement change S of the MEMS monitoring point. n ;

[0076] S8: The data processing terminal processes the displacement change S exceeding the warning value in step S7. n Give a warning.

[0077] It should be noted that: the position coordinates S0 of the Beidou monitoring base point monitored in real time in step S3, the three-dimensional inclination value α of the MEMS monitoring point monitored in real time by the MEMS sensor in step S4 、 β 、γ The telescopic displacement S of the telescopic extension mechanism 3 monitored in real time by the laser ranging sensor 315 in step S5 is processed by a server in step S7 to obtain the position coordinates S1, S2, ..., S of each MEMS monitoring point with the Beidou monitoring base point position as the origin S0 of the three-dimensional coordinate system. n The general principle is to output the three-dimensional inclination value α of the MEMS monitoring point through the first MEMS monitoring point connected to the concrete base. 、 β, γ, a x 、a y 、a z , the telescopic displacement S of the telescopic extension mechanism output by the laser ranging sensor 315, with the help of complex calculations by the server, can be obtained by the spatial position change of the first MEMS monitoring point compared with its original position, and then the spatial coordinate S1 of the first MEMS monitoring point with the Beidou monitoring base point as the origin of the three-dimensional coordinate system S0 is obtained. Similarly, the second MEMS monitoring point connected to the first MEMS monitoring point can obtain the spatial coordinate with the first MEMS monitoring point as the origin of the coordinate based on its output data, and then the spatial coordinate transformation can be performed to obtain the spatial coordinate S2 of the second MEMS monitoring point with the Beidou monitoring base point as the origin of the three-dimensional coordinate system, and the same is true for the others; when the spatial coordinates of all MEMS monitoring points are obtained, the deformation on the surface of the potential landslide area can be characterized. When the spatial coordinate change of the MEMS monitoring point on a branch chain is large, it means that the probability of landslide in this direction increases, and it is necessary to warn and pay attention.

[0078] In step S6, the data transmission relay station is set in a stable area near the Beidou monitoring base point, and the real-time data in steps S3 to S5 are aggregated and packaged by wired or wireless means and can use 5G technology to send to the data processing terminal or upload to the cloud server;

[0079] In step S7, the data processing terminal is set up in a monitoring room far away from the Beidou monitoring base point, and uses a computer or a cloud server to convert and process the monitoring data collected in real time.

[0080] The beneficial effect of the present invention is that by calculating the monitoring data of the MEMS monitoring points, it is beneficial to monitor the deformation of the soil around the Beidou monitoring base point in real time and make a judgment, thereby facilitating the staff to directly locate the deformed soil area.

[0081] Preferably, in step S7, the real-time data is processed using the following formula:

[0082]

[0083] Among them, ΔS xn The MEMS monitoring point is at T n The displacement increment in the X direction at the moment, ΔS yn The MEMS monitoring point is at T n The displacement increment in the Y direction at time ΔS zn The MEMS monitoring point is at T n The displacement increment in the Z direction at the moment, n is the time of monitoring data, v xt0 is the movement speed of the MEMS monitoring point in the X direction at the initial moment, v yt0 is the motion speed of the MEMS monitoring point in the Y direction at the initial moment, v zt0 is the movement speed of the MEMS monitoring point in the Z direction at the initial moment, Δt is the time interval between processing two data, and a xt0 、a xt1 、a xt2 、a xt(n-1) The MEMS monitoring point at the initial time, T1, T2...T (n-1) The acceleration in the X direction at the moment, a yt0 、a yt1 、a yt2 、a yt(n-1) The MEMS monitoring point at the initial time, T1, T2...T (n-1) The acceleration in the Y direction at time a zt0 、a zt1 、a zt2 、a zt(n-1) The MEMS monitoring point at the initial time, T1, T2...T (n-1) The acceleration in the Z direction at time.

[0084] The beneficial effect of adopting the above preferred solution is that it is conducive to calculating the displacement of the MEMS monitoring point in the three-dimensional space at different time nodes, and comparing it with the previous time node to obtain the displacement increment of the MEMS monitoring point within a monitoring time period.

[0085] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, “axial”, “radial”, “circumferential”, etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0086] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0087] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0088] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0089] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0090] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. A chain-type landslide deformation monitoring device, characterized in that: include: A concrete base (1), a Beidou positioning mechanism (2), a plurality of telescopic extension mechanisms (3), a monitoring data primary processing cabinet (4), a plurality of first connecting mechanisms (5) and a plurality of second connecting mechanisms (6); the Beidou positioning mechanism (2) is arranged on the concrete base (1); the plurality of telescopic extension mechanisms (3) are connected end to end via the second connecting mechanisms (6) to form a plurality of chain structures for monitoring the deformation of a landslide body; the plurality of chain structures are installed on the concrete base (1) via the first connecting mechanisms (5); the monitoring data primary processing cabinet (4) is installed on the concrete base (1) and connected to the telescopic extension mechanisms (3); The Beidou positioning mechanism (2) is provided with a Beidou signal receiving and transmitting device (24) and a chassis assembly (25), and the Beidou signal receiving and transmitting device (24) is connected to the chassis assembly (25). The telescopic extension mechanism (3) is provided with a MEMS sensor placement block (34) and a laser ranging sensor (315), and the MEMS sensor placement block (34) is provided with a MEMS sensor, and the MEMS sensor and the laser ranging sensor (315) are both connected to the monitoring data primary processing cabinet (4).

2. A chain-type landslide deformation monitoring device according to claim 1, characterized in that: The top of the concrete base (1) is provided with a vertical pole mounting hole (11), and the side wall and the bottom of the concrete base (1) are provided with a plurality of connection mechanism mounting holes (12); the Beidou positioning mechanism (2) is adapted to be mounted in the vertical pole mounting hole (11), and the first connection mechanism (5) is adapted to be mounted in the connection mechanism mounting hole (12) and is connected to the telescopic extension mechanism (3).

3. A chain-type landslide deformation monitoring device according to claim 2, characterized in that: The Beidou positioning mechanism (2) further comprises: a vertical pole (21), a plurality of vertical pole fixing blocks (22), a monitoring element mounting platform (23) and a chassis assembly support frame (26); A plurality of the vertical pole fixing blocks (22) are arranged around the side wall of the bottom end of the vertical pole (21); the vertical pole (21) and the plurality of the vertical pole fixing blocks (22) are adapted to be installed in the vertical pole mounting hole (11); the monitoring element mounting platform (23) is arranged at the top end of the vertical pole (21); the Beidou signal receiving transmitter (24) is installed at the top end of the monitoring element mounting platform (23); the chassis assembly support frame (26) is installed on the side wall of the vertical pole (21); the chassis assembly (25) is installed on the chassis assembly support frame (26); the vertical pole (21) and the chassis assembly support frame (26) are both hollow structures; and the Beidou signal receiving transmitter (24) is connected to the chassis assembly (25) via wires arranged in the vertical pole (21) and the chassis assembly support frame (26).

4. A chain-type landslide deformation monitoring device according to claim 2, characterized in that: The first connecting mechanism (5) comprises: a connecting piece shell (51), a first steel wire fixing block (52) and a steel wire (54); the connecting piece shell (51) is a hollow spherical structure adapted to be arranged in the connecting mechanism mounting hole (12), and a steel wire lead-out hole (53) is arranged on the side wall; the first steel wire fixing block (52) is arranged inside the connecting piece shell (51), and the two ends of the steel wire (54) are connected to the first steel wire fixing block (52) and the telescopic extension mechanism (3) in a one-to-one correspondence.

5. A chain-type landslide deformation monitoring device according to claim 4, characterized in that: The telescopic extension mechanism (3) further comprises: a telescopic inner rod assembly (31), a telescopic middle rod assembly (32) and a telescopic outer rod assembly (33); the telescopic outer rod assembly (33), the telescopic middle rod assembly (32) and the telescopic inner rod assembly (31) are slidably sleeved in sequence, the MEMS sensor placement block (34) is mounted on an end of the telescopic outer rod assembly (33) away from the telescopic middle rod assembly (32), the second connection mechanism (6) is arranged on the MEMS sensor placement block (34), and an end of the telescopic inner rod assembly (31) away from the telescopic middle rod assembly (32) is connected to the first connection mechanism (5).

6. A chain-type landslide deformation monitoring device according to claim 5, characterized in that: The telescopic inner rod assembly (31) further comprises: a telescopic inner rod (311), a plurality of telescopic inner rod sliding grooves (312), a semicircular metal ball joint (313) and a second steel wire fixing block (314); the telescopic inner rod (311) is a tubular structure; the plurality of telescopic inner rod sliding grooves (312) are arranged around the outer wall of the telescopic inner rod (311); the semicircular metal ball joint (313) is adapted to be arranged inside an end of the telescopic inner rod (311) away from the telescopic middle rod assembly (32); the second steel wire fixing block (314) and the laser ranging sensor (315) are arranged on both sides of the semicircular metal ball joint (313) in a one-to-one correspondence; the semicircular metal ball joint (313) is covered on the connector housing (51); the second steel wire fixing block (314) passes through the steel wire lead-out hole (53); and the steel wire (54) is connected to the second steel wire fixing block (314).

7. A chain-type landslide deformation monitoring device according to claim 6, characterized in that: The telescopic middle rod assembly (32) comprises: a telescopic middle rod (321), a plurality of telescopic middle rod outer grooves (322) and a plurality of telescopic middle rod inner grooves (323); the telescopic middle rod (321) is a tubular structure, the plurality of telescopic middle rod outer grooves (322) are arranged on the outer wall of the telescopic middle rod (321), the plurality of telescopic middle rod inner grooves (323) are arranged on the inner wall of the telescopic middle rod (321), the plurality of telescopic middle rod inner grooves (323) and the plurality of telescopic inner rod grooves (312) correspond to each other one by one, and are slidably connected via balls (324).

8. A chain-type landslide deformation monitoring device according to claim 7, characterized in that: The telescopic outer rod assembly (33) comprises a telescopic outer rod (331) and a plurality of telescopic outer rod inner grooves (332); the plurality of telescopic outer rod inner grooves (332) are arranged around the inner wall of the telescopic outer rod (331); the plurality of telescopic outer rod inner grooves (332) correspond to the plurality of telescopic middle rod outer grooves (322) in one-to-one correspondence, and are slidably connected via the ball bearings (324).

9. A method for monitoring deformation of a chain landslide, characterized in that: Based on the chain-type landslide deformation monitoring device according to any one of claims 1 to 8 above, the landslide deformation monitoring method comprises the following steps: S1: Arrange Beidou monitoring base points on the slope to be monitored; S2: Arrange multiple MEMS monitoring points around the Beidou monitoring base point through multiple chain structures; S3: collecting the Beidou monitoring base point position coordinate S0 fed back in real time by the Beidou signal receiving and transmitting device (24) through the chassis assembly (25); S4: Collecting the three-dimensional acceleration change values ​​a of the multiple MEMS monitoring points fed back in real time by the MEMS sensor through the monitoring data primary processing cabinet (4) x 、a y 、a z And the three-dimensional inclination value α 、 β 、 γ ; S5: collecting the telescopic displacement S of the plurality of telescopic extension mechanisms (3) fed back in real time by the laser distance measuring sensor (315) through the monitoring data primary processing cabinet (4); S6: The real-time data in steps S3 to S5 are aggregated and packaged through the data transmission relay station and sent to the data processing terminal; S7: The data processing terminal processes the real-time data transmitted in step S6 and outputs the displacement change S of the MEMS monitoring point. n ; S8: The data processing terminal processes the displacement change S exceeding the warning value in step S7. n Give a warning.

10. A chain landslide deformation monitoring method according to claim 9, characterized in that: In step S7, the real-time data is processed using the following formula: Among them, ΔS xn The MEMS monitoring point is at T n The displacement increment in the X direction at the moment, ΔS yn The MEMS monitoring point is at T n The displacement increment in the Y direction at time ΔS zn The MEMS monitoring point is at T n The displacement increment in the Z direction at the moment, n is the time of monitoring data, v xt0 is the movement speed of the MEMS monitoring point in the X direction at the initial moment, v yt0 is the motion speed of the MEMS monitoring point in the Y direction at the initial moment, v zt0 is the movement speed of the MEMS monitoring point in the Z direction at the initial moment, Δt is the time interval between processing two data, and a xt0 、a xt1 、a xt2 、a xt(n-1) The MEMS monitoring point at the initial time, T1, T2...T (n-1) The acceleration in the X direction at the moment, a yt0 、a yt1 、a yt2 、a yt(n-1) The MEMS monitoring point at the initial time, T1, T2...T (n-1) The acceleration in the Y direction at time a zt0 、a zt1 、a zt2 、a zt(n-1) The MEMS monitoring point at the initial time, T1, T2...T (n-1) The acceleration in the Z direction at time.

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