Multi-node dangerous rock mass displacement monitoring device

Abstract

The utility model relates to the technical field of dangerous rock mass displacement monitoring, and provides a multi-node dangerous rock mass displacement monitoring device, which is characterized in that a node line concentration ring is adopted, a guyed displacement sensor is connected with a plurality of dangerous rock masses, dangerous rock mass monitoring nodes are connected in parallel, and any dangerous rock mass can be subjected to displacement through the node line concentration ring in the monitoring process. Displacement conditions are transmitted to the stay wire type displacement sensor, synchronous monitoring of displacement of a plurality of dangerous rock masses is achieved, redundant arrangement of single-point type monitoring is avoided, equipment cost is reduced, meanwhile, the connecting stay wire is tightened through the wire tightener, the dangerous rock mass displacement is effectively transmitted to the stay wire type displacement sensor, and the connecting stay wire is conveniently arranged through the steerable stay wire limiting stopper. And monitoring requirements of different scales and complexities can be met. A wireless communication module is adopted, so that the wiring cost is reduced; and the breakthrough of high efficiency, non-redundancy and low cost of dangerous rock mass monitoring is realized.

Description

Technical Field

[0001] This utility model relates to the field of unstable rock mass displacement monitoring technology, and in particular to a multi-node unstable rock mass displacement monitoring device. Background Technology

[0002] As a significant type of geological hazard, unstable rock masses directly impact the normal operation of infrastructure. Traditionally, monitoring of unstable rock masses has focused on changes in crack width, using equipment such as crack gauges or displacement sensors to monitor the displacement of individual cracks or localized areas of the unstable rock mass.

[0003] However, under complex geological conditions, unstable rock masses are often composed of multiple interconnected blocks, scattered and without obvious patterns. Traditional monitoring methods struggle to simultaneously and accurately capture the displacement changes of multiple unstable rock masses, resulting in incomplete monitoring data and biased assessment results. Furthermore, for large, dispersed groups of unstable rock masses, installing monitoring equipment on each one is not only costly but also difficult to maintain. Often, monitored unstable rock masses do not deform while unmonitored ones collapse, leading to poor monitoring effectiveness.

[0004] Therefore, this utility model proposes a multi-node unstable rock mass displacement monitoring device to improve the accuracy and efficiency of unstable rock mass monitoring. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by providing a multi-node unstable rock mass displacement monitoring device to improve the accuracy and efficiency of unstable rock mass monitoring.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A multi-node unstable rock mass displacement monitoring device includes: several guy wire fixing devices respectively installed on different unstable rock masses, several steerable guy wire limiters installed on the mountain surface, a tensioner, a node wire gathering ring, a guy wire displacement sensor, a connecting guy wire, a data acquisition instrument, a wireless transmission module, and a power supply module.

[0008] The connecting cable includes a first cable and a second cable. One end of the first cable is connected to a cable fixing device, and the other end of the first cable passes through a steerable cable limiter and a tensioner to connect to the front end of the node cable ring. One end of the second cable is connected to the rear end of the node cable ring, and the other end of the second cable passes through a steerable cable limiter to connect to a cable-type displacement sensor. The cable-type displacement sensor is electrically connected to a data acquisition instrument, and the data acquisition instrument is electrically connected to a wireless transmission module and a power supply module, respectively.

[0009] Preferably, the node hub ring has several dangerous rock mass end interfaces at its front end and a sensor end interface at its rear end. The first pull wire is connected to the dangerous rock mass end interface, and the second pull wire is connected to the sensor end interface.

[0010] Preferably, the steerable cable limiter includes a limit ring and a limit base, wherein the limit base is disposed on the surface of the mountain.

[0011] Preferably, the upper part of the limiting ring is a circular ring, the lower part of the limiting ring is a cylindrical bracket, the cylindrical bracket is rotatably connected to the limiting base, the cylindrical bracket and the limiting base are rotatably connected through a bearing, the cylindrical bracket is fixedly connected to the inner ring of the bearing, and the limiting base is fixedly connected to the outer ring of the bearing.

[0012] Preferably, the limiting base is a rectangular plate with round holes at its four corners.

[0013] Preferably, the tensioner includes: a sliding end, a fixed end sleeved with the sliding end, and a bolt-type pin disposed on one side of the fixed end; the fixed end is inserted into the surface of the mountain, the sliding end can slide up and down along the fixed end, and one end of the bolt-type pin passes through the fixed end and abuts against the side wall of the sliding end.

[0014] Preferably, the sliding end is provided with a plurality of equally spaced grooves, one end of the bolt-type pin passes through the fixed end and abuts against the groove of the sliding end, and the top of the sliding end is provided with a ring.

[0015] Preferably, the data acquisition instrument, wireless transmission module, and power supply module are located inside the monitoring equipment box.

[0016] This utility model discloses a multi-node unstable rock mass displacement monitoring device, which has the following beneficial effects.

[0017] This invention employs a node-based hub ring to connect a pull-wire displacement sensor to multiple unstable rock masses. The monitoring nodes are connected in parallel. During monitoring, any displacement of any unstable rock mass can be transmitted to the pull-wire displacement sensor via the hub ring, enabling synchronous monitoring of multiple unstable rock mass displacements. This avoids the redundant deployment of single-point monitoring, reducing equipment costs. Simultaneously, a tensioner tightens the connecting wire, ensuring effective transmission of rock mass displacement to the pull-wire displacement sensor. A steerable pull-wire limiter facilitates the placement of the connecting wire. It can adapt to monitoring needs of varying scales and complexities. The use of a wireless communication module reduces wiring costs, achieving breakthroughs in high efficiency, non-redundancy, and low cost for unstable rock mass monitoring. Compared to traditional unstable rock mass displacement monitoring, it offers significant advantages and provides a new solution for the field of geological disaster monitoring. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the layout of this utility model.

[0019] Figure 2 This is a schematic diagram of the node-gathering loop structure of this utility model.

[0020] Figure 3 This is a schematic diagram of the tensioner structure of this utility model.

[0021] Figure 4 This is a schematic diagram of the steerable pull-wire limiter of this utility model.

[0022] In the attached diagram: 1. Unstable rock mass; 2. Guy wire fixing device; 3. Connecting guy wire; 301. First guy wire; 302. Second guy wire; 4. Rotatable guy wire limiter; 401. Limiting ring; 402. Limiting base; 5. Tensioner; 501. Sliding end; 502. Fixed end; 503. Bolt-type pin; 6. Node hub ring; 601. Unstable rock mass end interface; 602. Sensor end interface; 7. Guy wire displacement sensor; 8. Monitoring equipment box; 9. Data acquisition instrument; 10. Wireless transmission module; 11. Power supply module. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0024] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Example 1

[0025] Reference Figure 1 As shown, a multi-node unstable rock mass displacement monitoring device includes: five guy wire fixing devices 2 respectively installed on different unstable rock masses 1, five steerable guy wire limiters 4 installed on the mountain surface, a tensioner 5, a node wire gathering ring 6, a guy wire displacement sensor 7, a connecting guy wire 3, a data acquisition instrument 9, a wireless transmission module 10, and a power supply module 11; in this embodiment, after drilling holes in the unstable rock mass 1 with an electric drill, the guy wire fixing devices 2 are installed, and the guy wire fixing devices 2 can be anchor bolts.

[0026] The connecting cable 3 includes a first cable 301 and a second cable 302. One end of the first cable 301 is connected to the cable fixing device 2, and the other end of the first cable 301 passes through the steerable cable limiter 4 and the tensioner 5 and connects to the front end of the node cable ring 6. One end of the second cable 302 is connected to the rear end of the node cable ring 6, and the other end of the second cable 302 passes through the steerable cable limiter 4 and connects to the cable-type displacement sensor 7. The cable-type displacement sensor 7 is electrically connected to the data acquisition instrument 9, and the data acquisition instrument 9 is electrically connected to the wireless transmission module 10 and the power supply module 11, respectively. In this embodiment, the connecting cables 3 are all made of 1.5mm diameter steel core wire rope.

[0027] Please refer to Figure 2 As a preferred embodiment, in this example, the node hub ring 6 has 5 dangerous rock mass end interfaces 601 at the front end and a sensor end interface 602 at the rear end. The first pull wire 301 is connected to the dangerous rock mass end interface 601, and the second pull wire 302 is connected to the sensor end interface 602. The node hub ring 6 is an aluminum alloy ring with an outer diameter of 10cm and an inner diameter of 8cm. The sensor end interface 602 is a 1cm diameter circular hole located at the center of the front end of the node hub ring 66.

[0028] The dangerous rock mass end interface 601 is a 1cm diameter circular hole. The total number of interfaces is odd, and they are symmetrically distributed at the rear end of the node hub ring 6 according to the number of monitoring nodes.

[0029] Preferably, in this example, the data acquisition instrument 9, the wireless transmission module 10, and the power supply module 11 are located inside the monitoring equipment box 8. The pull-wire displacement sensor 7 is connected to the data acquisition instrument 9 in the monitoring equipment box 8 via a power cable and a data cable. The data acquisition instrument 9 is powered by the power supply module 11. The data acquisition instrument 9 is connected to the wireless transmission module 10 via a power cable and a data cable. The monitoring data is transmitted to the data center in real time through the wireless transmission module 10. In this embodiment, the pull-wire displacement sensor 7 is a commercially available Milang MPSFS2-M, the data acquisition instrument 9 is a commercially available Campbell CR200X series, the wireless transmission module 10 is a commercially available Zeyao Technology A32-S400A22S1 LoRa wireless module, and the power supply module 11 is a commercially available WAGO 750-602 power supply module. In this embodiment, a pull-wire displacement sensor 7 is connected to multiple unstable rock masses 1 via a node hub ring 6. The monitoring nodes for the unstable rock masses 1 are connected in parallel. During monitoring, any displacement of any unstable rock mass 1 can be transmitted to the pull-wire displacement sensor 7 via the node hub ring 6, achieving synchronous monitoring of the displacement of multiple unstable rock masses 1. This avoids redundant deployment in single-point monitoring and reduces equipment costs. It can adapt to monitoring needs of different scales and complexities. A wireless communication module is also used to reduce wiring costs; achieving breakthroughs in high efficiency, non-redundancy, and low cost monitoring of unstable rock masses 1. Compared with traditional unstable rock mass 1 displacement monitoring, it has significant technical and economic advantages, providing an innovative solution for the field of geological disaster monitoring. Example 2

[0030] Based on Example 1, such as Figure 4 As shown, in this example, the steerable pull-wire limiter 4 includes a limit ring 401 and a limit base 402, with the limit base 402 disposed on the surface of the mountain.

[0031] Preferably, in this example, the upper part of the limiting ring 401 is a circular ring, and the lower part of the limiting ring 401 is a cylindrical bracket. The cylindrical bracket is rotatably connected to the limiting base 402. The limiting ring 401 is made of stainless steel. The cylindrical bracket and the limiting base 402 are rotatably connected by a bearing. The cylindrical bracket is fixedly connected to the inner ring of the bearing, and the limiting base 402 is fixedly connected to the outer ring of the bearing. The limiting ring 401 can rotate freely along the limiting base 402, which facilitates the installation of the connecting wire 3.

[0032] Preferably, in this example, the limiting base 402 is a rectangular plate made of stainless steel, and has round holes at its four corners. Example 3

[0033] like Figure 3As shown, based on Embodiment 1, as a preferred embodiment, in this example, the tensioner 5 includes: a sliding end 501, a fixed end 502 sleeved with the sliding end 501, and a bolt-type pin 503 located on one side of the fixed end 502; the fixed end 502 is inserted into the surface of the mountain, and the sliding end 501 can slide up and down along the fixed end 502; one end of the bolt-type pin 503 passes through the fixed end 502 and abuts against the side wall of the sliding end 501. The sliding end 501 and the fixed end 502 are 15cm long steel bars. The fixing seat at the upper part of the fixed end 502 has a hole, and the sliding end 501 can slide up and down by inserting into the hole. The bolt-type pin 503 is provided on the outside of the fixing seat, and the sliding end 501 can be fixed by rotating the bolt-type pin 503. The tensioner 5 is mainly used to tighten the connecting wire 3, so that the displacement of the dangerous rock mass 1 can be effectively transmitted to the wire-type displacement sensor 7.

[0034] Preferably, in this example, the sliding end 501 is provided with a number of equally spaced grooves, one end of the bolt-type pin 503 passes through the fixed end 502 and abuts against the groove of the sliding end 501, and the top of the sliding end 501 is provided with a ring.

[0035] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Substitutions may include replacements for some structures, devices, or method steps, or they may be complete technical solutions. Equivalent substitutions or modifications made based on the technical solution and inventive concept of this utility model should all be covered within the scope of protection of this utility model.

Claims

1. A multi-node unstable rock mass displacement monitoring device, characterized in that, include: Several guy wire fixing devices (2) are respectively installed on different dangerous rock masses (1), several steerable guy wire limiters (4) are installed on the mountain surface, a tensioner (5), a node wire gathering ring (6), a guy wire displacement sensor (7), a connecting guy wire (3), a data acquisition instrument (9), a wireless transmission module (10), and a power supply module (11). The connecting cable (3) includes a first cable (301) and a second cable (302). One end of the first cable (301) is connected to the cable fixing device (2), and the other end of the first cable (301) passes through the steerable cable limiter (4) and the tensioner (5) and is connected to the front end of the node cable ring (6). One end of the second cable (302) is connected to the rear end of the node cable ring (6), and the other end of the second cable (302) passes through the steerable cable limiter (4) and is connected to the cable-type displacement sensor (7). The cable-type displacement sensor (7) is electrically connected to the data acquisition instrument (9), and the data acquisition instrument (9) is electrically connected to the wireless transmission module (10) and the power supply module (11) respectively.

2. The multi-node unstable rock mass displacement monitoring device according to claim 1, characterized in that, The node hub ring (6) has several dangerous rock mass end interfaces (601) at the front end and a sensor end interface (602) at the rear end. The first pull wire (301) is connected to the dangerous rock mass end interface (601), and the second pull wire (302) is connected to the sensor end interface (602).

3. The multi-node unstable rock mass displacement monitoring device according to claim 1, characterized in that, The steerable pull-wire limiter (4) includes a limit ring (401) and a limit base (402), wherein the limit base (402) is located on the surface of the mountain.

4. The multi-node unstable rock mass displacement monitoring device according to claim 3, characterized in that, The upper part of the limiting ring (401) is a circular ring, and the lower part of the limiting ring (401) is a cylindrical support. The cylindrical support is rotatably connected to the limiting base (402). The cylindrical support and the limiting base (402) are rotatably connected through a bearing. The cylindrical support is fixedly connected to the inner ring of the bearing, and the limiting base (402) is fixedly connected to the outer ring of the bearing.

5. A multi-node unstable rock mass displacement monitoring device according to claim 3, characterized in that, The limiting base (402) is a rectangular plate with round holes at its four corners.

6. The multi-node unstable rock mass displacement monitoring device according to claim 1, characterized in that, The tensioner (5) includes: a sliding end (501), a fixed end (502) sleeved with the sliding end (501), and a bolt-type pin (503) located on one side of the fixed end (502); the fixed end (502) is inserted into the surface of the mountain, the sliding end (501) can slide up and down along the fixed end (502), and one end of the bolt-type pin (503) passes through the fixed end (502) and abuts against the side wall of the sliding end (501).

7. A multi-node unstable rock mass displacement monitoring device according to claim 6, characterized in that, The sliding end (501) is provided with a number of equally spaced grooves. One end of the bolt-type pin (503) passes through the fixed end (502) and abuts against the groove of the sliding end (501). The top of the sliding end (501) is provided with a ring.

8. The multi-node unstable rock mass displacement monitoring device according to claim 1, characterized in that, The data acquisition instrument (9), wireless transmission module (10) and power supply module (11) are located inside the monitoring equipment box (8).

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