A reservoir landslide deformation monitoring device

Abstract

A reservoir landslide deformation monitoring device, including a GNSS reference station based on GNSS technology to determine the three-dimensional coordinates of the site and a plurality of GNSS test stations, the GNSS reference station is arranged at the reference point located on the stable ground, a plurality of GNSS test stations are arranged one by one in a plurality of test points of the reservoir dam body, and the GNSS reference station and the GNSS test station are wirelessly connected with a remote monitoring terminal, the GNSS test station comprises: a stand column for fixing the test point on the reservoir dam body; a GNSS receiver arranged at the top end of the stand column; a damping connector arranged between the stand column and the GNSS receiver; and a protective cover installed at the top end of the stand column for shielding the GNSS receiver and the damping connector. The technical problem to be solved by the utility model is to provide a reservoir landslide deformation monitoring device, which can monitor the landslide deformation through GNSS technology and avoid damage to the GNSS receiver caused by vibration.

Description

Technical Field

[0001] This utility model relates to the field of landslide monitoring technology, and in particular to a reservoir landslide deformation monitoring device. Background Technology

[0002] Reservoir dams are prone to landslides due to factors such as steep dam slopes, uneven compaction, seepage intensity less than rainfall intensity, earthquakes, and unfavorable geological conditions. Before a significant landslide occurs, the dam body undergoes a period of deformation development. Therefore, monitoring landslide deformation in reservoirs is crucial to understanding its occurrence and extent, facilitating preventative measures. In recent years, GNSS technology has been introduced for landslide deformation monitoring, providing high-precision surface deformation information over large areas through the deployment of numerous GNSS monitoring stations. Currently, GNSS receivers are directly mounted on columns using screw connectors, which are then fixed to the ground. In reservoir areas, GNSS monitoring stations are frequently exposed to strong winds and heavy rains, dam vibrations, and sometimes impacts from sand particles, making the receivers susceptible to damage. Summary of the Invention

[0003] The technical problem to be solved by this utility model is to provide a reservoir landslide deformation monitoring device that uses GNSS technology to monitor landslide deformation and avoids damage to the GNSS receiver due to vibration.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a reservoir landslide deformation monitoring device, comprising a GNSS reference station for determining the three-dimensional coordinates of the station based on GNSS technology and several GNSS test stations. The GNSS reference station is set at a reference point located on a stable surface, and the several GNSS test stations are set one-to-one at several test points on the reservoir dam body. The GNSS reference station and the GNSS test stations are wirelessly connected to a remote monitoring terminal. The GNSS test station includes: Columns are used to fix test points on the reservoir dam. GNSS receiver, mounted on top of the column; A shock-absorbing connector is installed between the column and the GNSS receiver; The protective cover, installed on the top of the column, is used to shield the GNSS receiver and the shock-absorbing connector.

[0005] Preferably, the shock-absorbing connector is a rubber joint, which includes a rubber cylinder, an upper flange, and a lower flange. The upper flange and the lower flange are respectively disposed at the upper and lower ends of the rubber cylinder. The upper flange is connected to the GNSS receiver by screws, and the lower flange is connected to the column by screws.

[0006] Preferably, the rubber tube has a spindle-shaped structure or a cylindrical structure.

[0007] Preferably, the protective cover includes a cover body and a connecting part disposed at the lower end of the cover body. When the cover body covers the GNSS receiver, a first gap is reserved between the inner wall of the cover body and the assembly of the GNSS receiver and the shock-absorbing connector. The connecting part is used to fix the connecting column.

[0008] Preferably, the cover portion includes a hemispherical head and a cylindrical skirt portion, with the cylindrical skirt portion integrally formed and disposed at the lower end of the hemispherical head.

[0009] Preferably, the lower end opening of the cover portion is used for the column to extend into, and a second gap is provided between the edge of the opening and the outer wall of the column, and the second gap is connected to the first gap.

[0010] Preferably, the surface of the GNSS receiver is adhered with a thermally conductive silicone strip.

[0011] Preferably, the connecting part includes two clamping parts symmetrically arranged at the lower end of the cover part. Each clamping part includes an L-shaped connecting block and a semi-circular clamping block. One end of the L-shaped connecting block is connected to the cover part, and the other end is connected to the semi-circular clamping block. The semi-circular clamping blocks of the two clamping parts are connected by bolts.

[0012] Preferably, the GNSS test station further includes a generator, the GNSS receiver includes a battery, and the generator is electrically connected to the battery; the generator is a solar generator or a wind turbine generator.

[0013] Preferably, the GNSS test station further includes a data transmitter, which is electrically connected to the GNSS receiver.

[0014] Preferably, the GNSS test station further includes a data transmitter, which is electrically connected to the GNSS receiver.

[0015] This utility model provides a reservoir landslide deformation monitoring device with the following beneficial effects: 1. High monitoring accuracy and wide range, enabling real-time monitoring of landslide dynamics. The system adopts a combination of "GNSS base station + several GNSS test stations". The base station is fixed on a stable surface to provide reference coordinates, and the test stations correspond to multiple test points on the reservoir dam. The system can obtain the three-dimensional coordinates of each test point through GNSS technology, and realize high-precision surface deformation monitoring over a large area.

[0016] Data is transmitted in real time to a remote monitoring terminal via wireless communication. The terminal can quickly process the coordinates of the benchmark point and the test point to obtain the actual deformation, helping staff to grasp the degree of landslide development in a timely manner and providing data support for prevention measures.

[0017] 2. Effectively prevents GNSS receivers from being damaged by vibration, extending equipment lifespan. Vibration damping and buffering: A rubber vibration damping connector is installed between the column and the GNSS receiver. The elasticity of the rubber cylinder absorbs and buffers external forces such as dam vibration and strong wind impact, preventing vibration from being directly transmitted to the receiver and solving the problem of easy damage of traditional rigid connections.

[0018] Physical protection: The protective cover can completely cover the receiver and the shock-absorbing connector, blocking the impact of wind and rain, sand and soil particles, and preventing the receiver from being directly subjected to external forces; and the gap between the cover and the receiver assembly makes it difficult for the vibration of the cover to be transmitted to the receiver, further reducing the risk of damage.

[0019] 3. Optimize the equipment operating environment to ensure long-term stable operation. Highly efficient heat dissipation: A gap is reserved between the lower opening of the protective cover and the column, and a thermally conductive silicone strip is pasted on the surface of the receiver, which can quickly dissipate the heat generated by the receiver during operation and avoid high temperature affecting the performance of the device.

[0020] Stable power supply: Equipped with solar or wind turbines and batteries to store electrical energy, it can continuously power the receiver and data transmitter, adapting to the outdoor environment of the reservoir where there is no external power source, and ensuring long-term uninterrupted operation of the equipment.

[0021] 4. Easy to install and maintain, suitable for complex reservoir scenarios. The protective cover is connected to the column by symmetrical clamps and fixed with bolts. The installation position can be flexibly adjusted, and it is easy to disassemble, which facilitates the later maintenance or replacement of the equipment.

[0022] The receiver's conductive wires can be run through the rubber tube or inside the column, avoiding exposure to environmental corrosion, reducing line faults, and lowering maintenance costs. Attached Figure Description

[0023] The present invention will be further described below with reference to the accompanying drawings and embodiments: Figure 1 This is a schematic diagram of the structure of a GNSS test station according to an embodiment of this application; Figure 2 for Figure 1 A cross-sectional schematic diagram of the mounting structure of the GNSS receiver in the illustrated embodiment; Figure 3 for Figure 1 An exterior view of the mounting structure of the GNSS receiver in the illustrated embodiment. Detailed Implementation

[0024] A reservoir landslide deformation monitoring device includes a GNSS reference station and several GNSS test stations, which determine the three-dimensional coordinates of the stations based on GNSS technology. The GNSS reference station is set at a reference point located on a stable ground surface, and the several GNSS test stations are set at several test points on the reservoir dam body in a one-to-one correspondence. The GNSS reference station and the GNSS test stations are wirelessly connected to a remote monitoring terminal.

[0025] The reservoir landslide deformation monitoring device of this application acquires the three-dimensional coordinates of the reference point through a GNSS reference station and sends them to a remote monitoring terminal. It also acquires the three-dimensional coordinates of the test point through a GNSS test station and sends them to the remote monitoring terminal. The remote monitoring terminal processes the data of the simultaneously acquired three-dimensional coordinates of the reference point and the three-dimensional coordinates of several test points to obtain the current actual deformation of each test point, thereby realizing the monitoring of reservoir landslide deformation.

[0026] The GNSS test station is located on the reservoir dam and is frequently exposed to the impact of strong winds and rainstorms and the vibration of the dam. Sometimes it is also hit by sand particles, making the GNSS receiver 20 susceptible to vibration and damage. Therefore, this application improves the installation structure of the GNSS receiver 20.

[0027] refer to Figures 1 to 3 The illustrated embodiment of the GNSS test station includes a column 10, a GNSS receiver 20, a vibration-damping connector 30, a protective cover 40, a generator 50, and a data transmitter 60. The column 10 is used to fix the test point on the dam body. The GNSS receiver 20 is mounted on the top of the column 10 via the vibration-damping connector 30. The protective cover 40 is installed on the top of the column 10, covering the combination of the GNSS receiver 20 and the vibration-damping connector 30. The data transmitter 60 is mounted on one side of the column 10 via a first support frame and is electrically connected to the GNSS receiver 20. It processes the signals received by the GNSS receiver 20 to obtain the three-dimensional coordinates of the test point and sends them to a remote monitoring terminal. The generator 50 is mounted on the other side of the column 10 via a second support frame and is electrically connected to the GNSS receiver 20 and the data transmitter 60 for power supply.

[0028] Specifically, such as Figure 2As shown, the shock-absorbing connector 30 is a rubber joint, which includes a rubber cylinder 31, an upper flange 32, and a lower flange 33. The rubber cylinder 31 is spherical or cylindrical. The upper flange 32 and the lower flange 33 are respectively located at the upper and lower ends of the rubber cylinder 31. The upper flange 32 is connected to the GNSS receiver 20 by screws, and the lower flange 33 is connected to the column 10 by screws. In this way, the GNSS receiver 20 and the column 10 do not have direct rigid contact, but the rubber cylinder 31 can effectively absorb and buffer the vibration transmitted from the column 10 to the GNSS receiver 20.

[0029] It is understandable that the conductive wire 21 of the GNSS receiver 20 is led out from the bottom of the receiver, then passes through the rubber cylinder 31 and enters the central cavity of the column 10, and then passes out through the through hole on the wall of the column 10 to connect the wire to the generator 50 and the data transmitter 60. This can protect the conductive wire 21.

[0030] Continue to refer to Figure 2 The protective cover 40 includes a cover body 41 and a connecting part 42 disposed at the lower end of the cover body 41. The cover body 41 is used to cover the assembly of the GNSS receiver 20 and the shock-absorbing connector 30. A first gap 71 is reserved between the inner wall of the cover body 41 and the assembly of the GNSS receiver 20 and the shock-absorbing connector 30. The connecting part 42 is used to fix the column 10, thereby fixing the cover body 41 to the top of the column 10. With the shielding of the cover body 41, external wind, rain, sand particles, etc. will not directly affect the GNSS receiver 20 and the shock-absorbing connector 30. Moreover, due to the existence of the first gap 71 and the fact that the protective cover 40 is connected to the GNSS receiver 20 through the shock-absorbing connector 30, the vibrations received by the protective cover 40 are also difficult to be transmitted to the GNSS receiver 20.

[0031] Furthermore, the lower end of the cover portion 41 has an opening for the column 10 to extend into, and a second gap 72 exists between the edge of the opening and the outer wall of the column 10, the second gap 72 communicating with the first gap 71. Thus, the heat generated by the GNSS receiver 20 is transferred to the outside through the air.

[0032] Furthermore, a thermally conductive silicone strip 80 is adhered to the surface of the GNSS receiver 20, so that the heat generated by the GNSS receiver 20 can be transferred to the air more and faster through the thermally conductive silicone strip 80.

[0033] In this embodiment, the cover portion 41 includes a hemispherical head 411 and a cylindrical skirt 412, with the cylindrical skirt 412 integrally formed at the lower end of the hemispherical head 411. This arrangement allows objects such as rainwater and sand particles that come into contact with the cover portion 41 to slide off. It should be noted that the shape of the cover portion 41 can also be rectangular, elliptical, or other shapes, as long as it can achieve the effect of shielding the combination of the GNSS receiver 20 and the shock-absorbing connector 30, with a first gap 71 reserved, and the column 10 can be inserted with a second gap 72 reserved.

[0034] refer to Figure 2 and Figure 3 The connecting part 42 includes two clamping members symmetrically arranged at the lower end of the cover part 41. Each clamping member includes an L-shaped connecting block 421 and a semi-circular clamping block 422. One end of the L-shaped connecting block 421 is connected to the cover part 41, and the other end is connected to the semi-circular clamping block 422. The semi-circular clamping blocks 422 of the two clamping members are connected by bolts. In this way, the connecting part 42 is adjustablely and detachably fixedly connected to the column 10 in the form of clamps.

[0035] The generator 50 is a solar generator or a wind turbine generator.

[0036] Both the GNSS receiver 20 and the data transmitter 60 are equipped with a storage battery. The generator 50 is electrically connected to the storage battery, thereby storing the generated energy of the generator 50 and continuously supplying power to the GNSS receiver 20 and the data transmitter 60 through the storage battery.

[0037] In this application's reservoir landslide deformation monitoring device, the GNSS test station incorporates a vibration-damping connector 30 between the column 10 and the GNSS receiver 20. This connector absorbs and buffers vibrations transmitted to the GNSS receiver 20 when the column is subjected to vibration. A protective cover 40 further protects the assembly of the GNSS receiver 20 and the vibration-damping connector 30. While sand particles and wind and rain may impact the protective cover 40, the GNSS receiver 20 and the vibration-damping connector 30 are not directly impacted and vibrate. Furthermore, since the protective cover 40 is connected to the column 10 and then to the GNSS receiver 20 via the vibration-damping connector 30, vibrations to the protective cover 40 are also difficult to transmit to the GNSS receiver 20. Therefore, the GNSS receiver 20 in this application's reservoir landslide deformation monitoring device is protected from vibration damage, extending its service life.

[0038] The above embodiments are merely preferred technical solutions of this utility model and should not be considered as limitations on this utility model. The protection scope of this utility model should be the technical solution described in the claims, including equivalent substitutions of the technical features described in the claims. That is, equivalent substitutions and improvements within this scope are also within the protection scope of this utility model.

Claims

1. A reservoir landslide deformation monitoring device, comprising a GNSS reference station for determining the three-dimensional coordinates of a site based on GNSS technology and several GNSS test stations, wherein the GNSS reference station is set at a reference point located on a stable surface, and the several GNSS test stations are set at several test points on the reservoir dam body in a one-to-one correspondence; the GNSS reference station and the GNSS test stations are wirelessly connected to a remote monitoring terminal. Its features are, The GNSS test station includes: Column (10) is used to fix test points on the reservoir dam body; A GNSS receiver (20) is mounted on top of a column (10); A shock-absorbing connector (30) is installed between the column (10) and the GNSS receiver (20); A protective cover (40) is installed on the top of the column (10) to cover the GNSS receiver (20) and the shock-absorbing connector (30).

2. The reservoir landslide deformation monitoring device according to claim 1, characterized in that: The shock-absorbing connector (30) is a rubber joint, which includes a rubber cylinder (31), an upper flange (32) and a lower flange (33). The upper flange (32) and the lower flange (33) are respectively located at the upper and lower ends of the rubber cylinder (31). The upper flange (32) is connected to the GNSS receiver (20) by screws, and the lower flange (33) is connected to the column (10) by screws.

3. The reservoir landslide deformation monitoring device according to claim 2, characterized in that: The rubber tube (31) has a spindle-shaped structure or a cylindrical structure.

4. The reservoir landslide deformation monitoring device according to claim 1, characterized in that: The protective cover (40) includes a cover body (41) and a connecting part (42) disposed at the lower end of the cover body (41). When the cover body (41) covers the GNSS receiver (20), a first gap (71) is reserved between the inner wall of the cover body (41) and the assembly of the GNSS receiver (20) and the shock-absorbing connector (30). The connecting part (42) is used to fix the connecting column (10).

5. The reservoir landslide deformation monitoring device according to claim 4, characterized in that: The cover part (41) includes a hemispherical head (411) and a cylindrical skirt (412), with the cylindrical skirt (412) integrally formed at the lower end of the hemispherical head (411).

6. The reservoir landslide deformation monitoring device according to claim 4, characterized in that: The lower end of the cover (41) has an opening for the column (10) to extend into. A second gap (72) is provided between the edge of the opening and the outer wall of the column (10). The second gap (72) is connected to the first gap (71).

7. The reservoir landslide deformation monitoring device according to claim 6, characterized in that: The surface of the GNSS receiver (20) is adhered with a thermally conductive silicone strip (80).

8. The reservoir landslide deformation monitoring device according to claim 4, characterized in that: The connecting part (42) includes two clamps symmetrically arranged at the lower end of the cover part (41). The clamps include an L-shaped connecting block (421) and a semi-circular clamp (422). One end of the L-shaped connecting block (421) is connected to the cover part (41), and the other end is connected to the semi-circular clamp (422). The semi-circular clamps (422) of the two clamps are connected by bolts.

9. The reservoir landslide deformation monitoring device according to claim 1, characterized in that: The GNSS test station also includes a generator, and the GNSS receiver includes a battery. The generator is electrically connected to the battery. The generator is a solar generator or a wind turbine generator.

10. The reservoir landslide deformation monitoring device according to claim 1, characterized in that: The GNSS test station also includes a data transmitter, which is electrically connected to the GNSS receiver.

Images