Device and method for monitoring internal stress of landslide rock-soil body

Abstract

The invention discloses a landslide rock-soil body internal stress monitoring device, and relates to the technical field of rock-soil body internal stress monitoring, the landslide rock-soil body internal stress monitoring device comprises a stress monitoring instrument, the outer side of the stress monitoring instrument is fixedly connected with a monitoring sensor, and the interior of the stress monitoring instrument is slidably connected with a moving shaft; an auxiliary assembly used for reducing the damage risk of the stress monitoring instrument is arranged outside the moving shaft, a soil loosening assembly used for enabling the stress monitoring instrument to be taken out and maintained easily is arranged outside the stress monitoring instrument, and the moving shaft moves downwards to drive triangular spines to be inserted into soil downwards. The triangular spine is of a triangular structure formed by combining three spines, the stability of the stress monitoring instrument in soil can be enhanced, the stress monitoring instrument can be firmly fixed in a rock-soil body, the possibility that the stress monitoring instrument moves when rock-soil landslide occurs is reduced, the triangular spine can be in better contact with the rock-soil body after being inserted into the soil, and the stress monitoring instrument is more stable. Therefore, the internal stress of the rock-soil body can be monitored more effectively.

Description

Technical Field

[0001] The invention relates to the technical field of rock-soil body internal stress monitoring, and in particular to a device and method for monitoring the internal stress of a landslide rock-soil body. Background Art

[0002] Landslide refers to the destruction and movement of large-scale rock and soil bodies caused by gravity and other external factors on the surface or along a certain plane or line. This geological disaster has serious hazards to both humans and the environment. Therefore, monitoring and early warning of landslide geological bodies are of great significance. The stress state inside the landslide geological body is one of the important factors affecting the stability and mobility of landslides. Understanding the stress distribution inside the rock and soil body can help predict the possibility of landslides and take timely measures to prevent and control them. Therefore, the development of internal stress monitoring devices for landslide rock and soil bodies has become an important task. The monitoring device usually uses various sensors or monitoring technologies, such as strain gauges, pressure sensors, displacement sensors, etc., to convert the stress conditions inside the rock and soil body into electrical signals or other forms of data signals, which are collected and recorded through the data acquisition system.

[0003] When the device is in use, the entire monitoring device needs to be inserted into the interior of the rock mass. When monitoring is not required or the monitoring device is to be replaced or maintained on a daily basis, the monitoring device needs to be pulled out. However, after a traditional monitoring device is inserted into the rock mass, the soil above the device needs to be manually dug to take it out. During the digging process, the detection device needs to be avoided from being damaged, which makes it inconvenient to maintain or replace.

[0004] Secondly, when the monitoring device is placed inside the rock and soil, a hole needs to be drilled, and the device is placed in after the hole is drilled. After the device is placed in, it is not fixed. When a landslide occurs in the rock and soil, the monitoring device will slide down with the rock and soil, causing the monitoring device to be damaged or lost, and needs to be repaired or replaced, which will increase additional costs and time, and delay the processing of landslide warnings.

[0005] Therefore, the present invention proposes a device and method for monitoring the internal stress of landslide rock and soil to improve the shortcomings of traditional technologies. The device can be easily pulled out during replacement and daily maintenance, and the device can be prevented from slipping and being damaged. Summary of the invention

[0006] In view of the deficiencies in the prior art, the present invention provides a device and method for monitoring the internal stress of a landslide rock and soil mass, which solves the problems raised in the above-mentioned background technology.

[0007] To achieve the above objectives, the present invention is implemented through the following technical solutions: a landslide rock and soil internal stress monitoring device is used to monitor the stress changes inside the rock and soil in real time, including a stress monitoring instrument, a monitoring sensor is fixedly connected to the outside of the stress monitoring instrument, a moving shaft is slidably connected to the inside of the stress monitoring instrument, an auxiliary component for reducing the risk of damage to the stress monitoring instrument is arranged on the outside of the moving shaft, and a loosening component is arranged on the outside of the stress monitoring instrument for simplifying the removal and maintenance of the stress monitoring instrument.

[0008] Preferably, the auxiliary component includes a triangular spike, the outer surface of the movable shaft is fixedly connected to an auxiliary block, both ends of the auxiliary block are penetrated and fixedly connected to a first cylinder, the outer surfaces of the two first cylinders are rotatably connected to a first rotating plate, the ends of the two first rotating plates away from the first cylinder are penetrated and fixedly connected to a second cylinder, the outer surfaces of the two second cylinders are rotatably connected to a second rotating plate, the top of the stress monitoring instrument is fixedly connected to two fixed blocks, and the interiors of the two fixed blocks are penetrated and fixedly connected to a third cylinder.

[0009] Preferably, the loosening assembly includes a rotating shaft, a small circular plate is fixedly connected to the outer surface of the rotating shaft, an arc groove is provided on the outer surface of the small circular plate, a sliding rod is slidably connected to the inside of the arc groove, and a cylindrical spike is fixedly connected to the end of the sliding rod away from the small circular plate, the outer surface of the rotating shaft is rotatably connected to a large circular plate, a limiting groove is provided on the outer surface of the large circular plate, the cylindrical spike slides inside the limiting groove, and a protective shell is fixedly connected to the outer surface of the large circular plate.

[0010] Preferably, the top end of the triangular spike is fixedly connected to the bottom end of the movable shaft.

[0011] Preferably, the two first rotating plates, the second rotating plate and the fixed block are all symmetrical about the moving axis.

[0012] Preferably, both ends of the third cylinder are rotatably connected to an end of the second rotating plate away from the second cylinder.

[0013] Preferably, the rotating shaft passes through the interior of the stress monitoring instrument and is rotatably connected to the stress monitoring instrument.

[0014] Preferably, a side of the protective shell close to the movable axis is fixedly connected to an outer surface of the stress monitoring instrument.

[0015] The method for monitoring internal stress of landslide rock and soil comprises the following steps:

[0016] Step 1: According to geological conditions and monitoring requirements, select a suitable monitoring point in the landslide rock and soil, drill a hole at the monitoring point, and secure the stress monitoring instrument inside the hole through a triangular spike;

[0017] Step 2: Connect the stress monitoring instrument to the data acquisition device to ensure that the connection between the stress monitoring instrument and the data acquisition device is normal;

[0018] Step 3: Debug and test the stress monitoring instrument to ensure that it can work normally and accurately record stress data. According to the monitoring plan and requirements, start the stress monitoring instrument and start recording stress data.

[0019] Step 4: Analyze and process the monitored stress data, generate a monitoring report and take corresponding measures based on the monitoring results;

[0020] Step 5: Regularly inspect, maintain and service the stress monitoring instrument to ensure its normal operation and data accuracy. If the stress monitoring instrument is found to be faulty or damaged, repair or replace it in time.

[0021] The landslide rock and soil internal stress monitoring device provided by the present invention has the following beneficial effects:

[0022] 1. The triangular spike is driven downward by the moving shaft to be inserted into the soil. The triangular spike is composed of three spikes to form a triangular structure, which can enhance the stability of the stress monitoring instrument inside the soil, make it more firmly fixed in the rock and soil, and reduce the possibility of the stress monitoring instrument moving or swinging when a rock and soil landslide occurs. After the triangular spike is inserted into the soil, it can better contact with the rock and soil, so that the stress monitoring instrument can more accurately sense the stress changes inside the rock and soil, which can improve the stability, accuracy and anti-interference ability of the stress monitoring instrument, reduce the risk of damage, and improve safety, so as to more effectively monitor the internal stress of the rock and soil.

[0023] 2. The triangular spike is inserted into the soil by the moving shaft while the auxiliary block is moved downward. When the auxiliary block moves, the first rotating plate and the second rotating plate are slightly deflected so that the first rotating plate and the second rotating plate are placed parallel to the top of the stress monitoring instrument, which can increase the stability of the stress monitoring instrument. This can reduce the risk of the stress monitoring instrument being affected by external vibration or geological changes, ensure the accuracy and reliability of the monitoring data, and reduce the risk of damage to the stress monitoring instrument during installation or monitoring. The parallel position of the first rotating plate and the second rotating plate can better disperse the weight and stress of the soil above the stress monitoring instrument after it is buried, reducing the possibility of the stress monitoring instrument being subjected to external impact or pressure. When the stress monitoring instrument needs maintenance, the stress monitoring instrument is moved upward to deflect the first rotating plate and the second rotating plate upward, so that the shape of the top of the stress monitoring instrument forms an inclined triangle. The pointed triangle design can reduce the resistance of the stress monitoring instrument when it moves inside the rock and soil. Due to the narrow tip, it can pass through the rock and soil body more easily than other shapes, reducing interference and resistance to the rock and soil. The pointed design can reduce the lateral pressure of the rock and soil, thereby reducing the risk of damage to the device.

[0024] 3. The small circular plate is driven to rotate by rotating the rotating shaft. When the small circular plate rotates, the sliding rod slides inside the arc groove. The arc shape of the arc groove and the vertical shape of the limit sliding groove make the cylindrical spike move outward when the small circular plate rotates. Since multiple cylindrical spikes are arranged on both sides of the stress monitoring instrument, when the stress monitoring instrument needs to be maintained and taken out from the soil, the cylindrical spikes are continuously inserted into the soil above before taking it out to loosen the soil above the stress monitoring instrument, so that the stress monitoring instrument can be taken out of the soil for maintenance by simply moving it. By loosening the soil, the risk of damage to the stress monitoring instrument or the surrounding environment during the process of taking out the stress monitoring instrument can be reduced. The loose soil makes it smoother to take out the stress monitoring instrument, reduces the possibility of damaging the stress monitoring instrument or the surrounding structure, and makes the removal and maintenance of the stress monitoring instrument simpler and more efficient. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a three-dimensional schematic diagram of the overall structure of the present invention;

[0026] Figure 2 It is a three-dimensional bottom view of the overall structure of the present invention;

[0027] Figure 3 for Figure 2 The enlarged structural diagram at A in the middle;

[0028] Figure 4 It is a schematic diagram of the auxiliary component structure of the present invention;

[0029] Figure 5 This is a schematic diagram of the internal structure of the protective shell of the present invention;

[0030] Figure 6 It is a schematic diagram of the local structure of the soil loosening assembly of the present invention;

[0031] Figure 7 for Figure 6 The enlarged structural diagram at B in the middle;

[0032] Figure 8 It is a schematic diagram of the structure of the soil loosening component of the present invention.

[0033] The numbers in the figure represent:

[0034] 1. Stress monitoring instrument; 2. Monitoring sensor; 3. Moving axis;

[0035] 4. Auxiliary component; 41. Triangular spike; 42. Auxiliary block; 43. First cylinder; 44. First rotating plate; 45. Second cylinder; 46. Second rotating plate; 47. Fixed block; 48. Third cylinder;

[0036] 5. Soil loosening assembly; 51. Rotating shaft; 52. Small circular plate; 53. Arc groove; 54. Sliding stick; 55. Cylindrical spike; 56. Large circular plate; 57. Limiting slide groove; 58. Protective shell. DETAILED DESCRIPTION

[0037] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0038] Embodiment 1

[0039] refer to Figures 1 to 8 As shown, a preferred embodiment of the present invention will be described in detail below:

[0040] The device for monitoring internal stress of landslide rock and soil is used for real-time monitoring stress changes inside the rock and soil, and comprises a stress monitoring instrument 1. A monitoring sensor 2 is fixedly connected to the outside of the stress monitoring instrument 1. A moving shaft 3 is slidably connected to the inside of the stress monitoring instrument 1. The top end of the moving shaft 3 is driven and installed on an external driving device, and the external driving device is preferably an electric telescopic rod. An auxiliary component 4 for reducing the risk of damage to the stress monitoring instrument 1 is arranged on the outside of the moving shaft 3. A loosening component 5 for simplifying the removal and maintenance of the stress monitoring instrument 1 is arranged on the outside of the stress monitoring instrument 1.

[0041] The auxiliary component 4 includes a triangular spike 41. The triangular spike 41 is composed of three spikes to form a triangular structure, which can enhance the stability of the stress monitoring instrument 1 inside the soil, make it more firmly fixed in the rock and soil body, and reduce the possibility of affecting the movement or swing of the stress monitoring instrument 1 during rock and soil landslides. After the triangular spike 41 is inserted into the soil, it can better contact with the rock and soil body, so that the stress monitoring instrument 1 can more accurately sense the stress changes inside the rock and soil body, which can improve the stability, accuracy and anti-interference ability of the stress monitoring instrument 1, reduce the risk of damage, and improve safety, so as to more effectively monitor the internal stress of the rock and soil body. The outer surface of the moving shaft 3 is fixedly connected with an auxiliary block 42, and the auxiliary block 42 is located at At the top of the stress monitoring instrument 1, both ends of the auxiliary block 42 are penetrated and fixedly connected with a first cylinder 43, the outer surfaces of the two first cylinders 43 are rotatably connected with a first rotating plate 44, the ends of the two first rotating plates 44 away from the first cylinder 43 are penetrated and fixedly connected with a second cylinder 45, the outer surfaces of the two second cylinders 45 are rotatably connected with a second rotating plate 46, the top of the stress monitoring instrument 1 is fixedly connected with two fixed blocks 47, the interiors of the two fixed blocks 47 are penetrated and fixedly connected with a third cylinder 48, the top of the triangular spike 41 is fixedly connected to the bottom end of the moving shaft 3, the two first rotating plates 44, the second rotating plate 46 and the fixed block 47 are symmetrical with the moving shaft 3 as the center line, Both ends of the third cylinder 48 are rotatably connected to an end of the second rotating plate 46 away from the second cylinder 45. The triangular spike 41 is driven to be inserted into the soil by the movable shaft 3, and the auxiliary block 42 is driven to move downward. When the auxiliary block 42 moves, it drives the first rotating plate 44 and the second rotating plate 46 to deflect slightly, so that the first rotating plate 44 and the second rotating plate 46 are placed parallel to the top of the stress monitoring instrument 1, which can increase the stability of the stress monitoring instrument 1. In this way, the risk of the stress monitoring instrument 1 being affected by external vibration or geological changes can be reduced, the accuracy and reliability of the monitoring data can be ensured, and the risk of the stress monitoring instrument 1 being damaged during the installation process or the monitoring period can be reduced. The first rotating plate 44 and the second rotating plate 4 The parallel position of 6 can better disperse the weight and stress of the soil above the stress monitoring instrument 1 after it is buried, and reduce the possibility of the stress monitoring instrument 1 being subjected to external impact or pressure. The auxiliary block 42 moves upward to cause the first rotating plate 44 and the second rotating plate 46 to deflect and move upward. When the auxiliary block 42 moves to the top, the first rotating plate 44 and the second rotating plate 46 form an inclined triangle above the stress monitoring instrument 1. The pointed triangle design can reduce the resistance of the stress monitoring instrument 1 when it moves inside the rock and soil. Due to the narrow tip, it can pass through the rock and soil more easily than other shapes, reducing interference and resistance to the rock and soil. The pointed design can reduce the lateral pressure of the rock and soil, thereby reducing the risk of damage to the device.

[0042] The loosening component 5 includes a rotating shaft 51, which is driven and installed on an external driving device, and the external driving device is preferably a motor. A small circular plate 52 is fixedly connected to the outer surface of the rotating shaft 51, and an arc groove 53 is provided on the outer surface of the small circular plate 52. A sliding rod 54 is slidably connected inside the arc groove 53. A cylindrical spike 55 is fixedly connected to the end of the sliding rod 54 away from the small circular plate 52. A large circular plate 56 is rotatably connected to the outer surface of the rotating shaft 51. A limiting slide groove 57 is provided on the outer surface of the large circular plate 56. The cylindrical spike 55 slides inside the limiting slide groove 57. A protective shell 58 is fixedly connected to the outer surface of the large circular plate 56. The rotating shaft 51 passes through the interior of the stress monitoring instrument 1 and is rotatably connected to the stress monitoring instrument 1. The side of the protective shell 58 close to the movable shaft 3 is fixedly connected to the outer surface of the stress monitoring instrument 1, and the small circular plate 52 is driven to rotate by the rotation of the rotating shaft 51. When the plate 52 rotates, the slide rod 54 slides inside the arc groove 53. The arc shape of the arc groove 53 and the vertical shape of the limiting slide groove 57 enable the cylindrical spike 55 to move outward when the small circular plate 52 rotates. Since a plurality of cylindrical spikes 55 are arranged on both sides of the stress monitoring instrument 1, when the stress monitoring instrument 1 needs to be maintained and taken out from the soil, the cylindrical spikes 55 are continuously inserted into the soil above before being taken out, so as to loosen the soil above the stress monitoring instrument 1, so that the stress monitoring instrument 1 can be taken out of the soil for maintenance by simply moving it. By loosening the soil, the risk of damage to the stress monitoring instrument 1 or the surrounding environment during the process of taking out the stress monitoring instrument 1 can be reduced. The loose soil makes it smoother to take out the stress monitoring instrument 1, reduces the possibility of damaging the stress monitoring instrument 1 or the surrounding structure, and makes the taking out and maintenance of the stress monitoring instrument 1 simpler and more efficient.

[0043] Embodiment 2

[0044] The method for monitoring internal stress of landslide rock and soil comprises the following steps:

[0045] Step 1: According to geological conditions and monitoring requirements, select a suitable monitoring point in the landslide rock and soil, drill a hole at the monitoring point, and secure the stress monitoring instrument 1 inside the hole at the monitoring point through the triangular spike 41;

[0046] Step 2: Connect the stress monitoring instrument 1 to the data acquisition device to ensure that the connection between the stress monitoring instrument 1 and the data acquisition device is normal;

[0047] Step 3: Debug and test the stress monitoring instrument 1 to ensure that the stress monitoring instrument 1 can work normally and accurately record stress data. According to the monitoring plan and requirements, start the stress monitoring instrument 1 and start recording stress data;

[0048] Step 4: Analyze and process the monitored stress data, generate a monitoring report and take corresponding measures based on the monitoring results;

[0049] Step 5: Regularly inspect, maintain and service the stress monitoring instrument 1 to ensure the normal operation of the stress monitoring instrument 1 and the accuracy of the data. If the stress monitoring instrument 1 is found to be faulty or damaged, repair or replace it in time.

[0050] The following is the entire working process and working principle of the above embodiment:

[0051] First, according to geological conditions and monitoring requirements, a suitable monitoring point is selected in the landslide rock and soil body, a hole is drilled at the monitoring point, and the stress monitoring instrument 1 is placed in the hole. The top end of the movable shaft 3 is located outside the hole, and the top end of the movable shaft 3 is driven to be installed on an external driving device, and the external driving device is preferably an electric telescopic rod. The staff starts the electric telescopic rod, and the electric telescopic rod extends to drive the movable shaft 3 to move downward. During the downward movement of the movable shaft 3, the triangular spike 41 is driven to move downward. The triangular spike 41 is inserted downward into the soil at the bottom of the hole. The triangular spike 41 is composed of three spikes to form a triangular structure, which can enhance the stability of the stress monitoring instrument 1 in the soil, make it more firmly fixed in the rock and soil body, and reduce the possibility of the stress monitoring instrument 1 moving or swinging when a rock and soil landslide occurs. After the triangular spike 41 is inserted into the soil, it can better contact with the rock and soil body, so that the stress monitoring instrument 1 can more accurately sense the stress changes inside the rock and soil body, which can improve the stability, accuracy and anti-interference ability of the stress monitoring instrument 1, reduce the risk of damage, and improve safety, so as to more effectively monitor the internal stress of the rock and soil body.

[0052] The moving shaft 3 moves downward while driving the auxiliary block 42 downward, the auxiliary block 42 moves downward while driving the first cylinder 43 downward, the first cylinder 43 moves downward while driving the first rotating plate 44 to deflect and move downward, the first rotating plate 44 deflects and moves downward while driving the second cylinder 45 to move downward, the second cylinder 45 moves downward while driving the second rotating plate 46 to deflect and move downward, the second rotating plate 46 rotates on the surface of the third cylinder 48, when the auxiliary block 42 moves to touch the top of the stress monitoring instrument 1, at this time, the first rotating plate 44 and the second rotating plate 46 are parallel to the top of the stress monitoring instrument 1, the moving shaft 3 drives the triangular spike 41 to be inserted into the soil while driving the auxiliary block 42 downward, when the auxiliary block 42 moves, it drives the first rotating plate 44 and the second rotating plate 46 to deflect slightly so that the first rotating plate 44 and the second rotating plate 46 are placed parallel to the top of the stress monitoring instrument 1 , which can enable the stress monitoring instrument 1 to obtain supporting force in the vertical direction, so that it can be more firmly fixed inside the soil, prevent the stress monitoring instrument 1 from moving or tilting due to external vibration or pressure changes, and increase the stability of the stress monitoring instrument 1. This can reduce the risk of the stress monitoring instrument 1 being affected by external vibration or geological changes, ensure the accuracy and reliability of the monitoring data, and make the stress monitoring instrument 1 more firmly fixed inside the soil. It can also reduce the risk of the stress monitoring instrument 1 being damaged during installation or monitoring. A pulling force is provided to the stress monitoring instrument 1 through the first rotating plate 44 and the second rotating plate 46. During the descent, the first rotating plates 44 and the second rotating plates 46 on both sides change synchronously, so that both sides of the stress monitoring instrument 1 are evenly stressed, making the descent smoother. During the descent, the descent speeds of both sides remain consistent to avoid tilting during the descent.

[0053] When the stress monitoring instrument 1 is firmly placed in the hole and buried, in order to better detect the internal stress of the rock and soil, if the stress monitoring instrument 1 needs to be replaced and maintained daily, the staff starts the motor inside the stress monitoring instrument 1 through the controller, and the motor drives the rotating shaft 51 to rotate. When the rotating shaft 51 rotates, it drives the small circular plate 52 to rotate. When the small circular plate 52 rotates, the sliding stick 54 slides inside the arc groove 53. Through the restriction of the limiting slide groove 57, the sliding stick 54 drives the cylindrical spike 55 to slide inside the limiting slide groove 57. During the sliding process of the cylindrical spike 55, the soil above the stress monitoring instrument 1 is loosened, and the small circular plate 52 is driven to rotate by the rotation of the rotating shaft 51. When the small circular plate 52 rotates, the sliding stick 54 slides inside the arc groove 53. Through the arc shape of the arc groove 53 and the limiting slide groove 57, the soil above the stress monitoring instrument 1 is loosened. The vertical shape of the small circular plate 52 causes the cylindrical spikes 55 to move outward when the small circular plate 52 rotates. Since a plurality of cylindrical spikes 55 are arranged on both sides of the stress monitoring instrument 1, when the stress monitoring instrument 1 needs to be maintained and taken out from the soil, the cylindrical spikes 55 continuously penetrate into the soil above before the stress monitoring instrument 1 is taken out from the soil, thereby loosening the soil above the stress monitoring instrument 1, so that the stress monitoring instrument 1 can be taken out of the soil for maintenance by simply moving it. By loosening the soil, the risk of damage to the stress monitoring instrument 1 or the surrounding environment during the process of taking out the stress monitoring instrument 1 can be reduced. The loose soil makes it smoother to take out the stress monitoring instrument 1, reduces the possibility of damaging the stress monitoring instrument 1 or the surrounding structures, and makes the removal and maintenance of the stress monitoring instrument 1 simpler and more efficient.

[0054] When the soil above the stress monitoring instrument 1 is loosened, the electric telescopic rod contracts and drives the moving shaft 3 to move upward. The moving shaft 3 moves upward and drives the triangular spike 41 to leave the soil. The moving shaft 3 drives the auxiliary block 42 to move upward. The auxiliary block 42 moves upward to cause the first rotating plate 44 and the second rotating plate 46 to deflect and move upward. When the auxiliary block 42 moves to the top, the first rotating plate 44 and the second rotating plate 46 form an inclined triangle above the stress monitoring instrument 1. The pointed triangle design can reduce the resistance of the stress monitoring instrument 1 when it moves inside the rock and soil. Due to the narrow tip, it can pass through the rock and soil more easily than other shapes, reducing interference and resistance to the rock and soil. The pointed design can reduce the lateral pressure of the rock and soil, thereby reducing the risk of damage to the device.

[0055] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "including one..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0056] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A landslide rock and soil internal stress monitoring device, used to monitor the stress changes inside the rock and soil in real time, characterized in that: The invention comprises a stress monitoring instrument (1), wherein a monitoring sensor (2) is fixedly connected to the outside of the stress monitoring instrument (1), a movable shaft (3) is slidably connected to the inside of the stress monitoring instrument (1), an auxiliary component (4) for reducing the risk of damage to the stress monitoring instrument (1) is arranged outside the movable shaft (3), and a loosening component (5) for facilitating the removal and maintenance of the stress monitoring instrument (1) is arranged outside the stress monitoring instrument (1).

2. The device for monitoring internal stress of landslide rock and soil according to claim 1, characterized in that: The auxiliary component (4) comprises a triangular spike (41); an auxiliary block (42) is fixedly connected to the outer surface of the movable shaft (3); both ends of the auxiliary block (42) are penetrated and fixedly connected to a first cylinder (43); the outer surfaces of the two first cylinders (43) are rotatably connected to a first rotating plate (44); the ends of the two first rotating plates (44) away from the first cylinder (43) are penetrated and fixedly connected to a second cylinder (45); the outer surfaces of the two second cylinders (45) are rotatably connected to a second rotating plate (46); the top of the stress monitoring instrument (1) is fixedly connected to two fixed blocks (47); the interiors of the two fixed blocks (47) are penetrated and fixedly connected to a third cylinder (48).

3. The device for monitoring internal stress of landslide rock and soil according to claim 1, characterized in that: The loosening component (5) comprises a rotating shaft (51), the outer surface of the rotating shaft (51) is fixedly connected to a small circular plate (52), the outer surface of the small circular plate (52) is provided with an arc groove (53), the interior of the arc groove (53) is slidably connected to a sliding rod (54), the end of the sliding rod (54) away from the small circular plate (52) is fixedly connected to a cylindrical spike (55), the outer surface of the rotating shaft (51) is rotatably connected to a large circular plate (56), the outer surface of the large circular plate (56) is provided with a limiting sliding groove (57), the cylindrical spike (55) slides inside the limiting sliding groove (57), and the outer surface of the large circular plate (56) is fixedly connected to a protective shell (58).

4. The device for monitoring internal stress of landslide rock and soil according to claim 2, characterized in that: The top end of the triangular spike (41) is fixedly connected to the bottom end of the movable shaft (3).

5. The device for monitoring internal stress of landslide rock and soil according to claim 2, characterized in that: The two first rotating plates (44), the second rotating plate (46) and the fixed block (47) are all symmetrical about the center line of the moving shaft (3).

6. The device for monitoring internal stress of landslide rock and soil according to claim 2, characterized in that: Both ends of the third cylinder (48) are rotatably connected to an end of the second rotating plate (46) away from the second cylinder (45).

7. The device for monitoring internal stress of landslide rock and soil according to claim 3, characterized in that: The rotating shaft (51) passes through the interior of the stress monitoring instrument (1) and is rotationally connected to the stress monitoring instrument (1).

8. The device for monitoring internal stress of landslide rock and soil according to claim 3, characterized in that: The side of the protective shell (58) close to the movable shaft (3) is fixedly connected to the outer surface of the stress monitoring instrument (1).

9. A method for monitoring internal stress of a landslide rock mass, applied to a device for monitoring internal stress of a landslide rock mass according to any one of claims 1 to 8, characterized in that: The following steps are involved: Step 1: According to geological conditions and monitoring requirements, select a suitable monitoring point in the landslide rock and soil, drill a hole at the monitoring point and secure the stress monitoring instrument (1) inside the hole at the monitoring point through a triangular spike (41); Step 2: Connect the stress monitoring instrument (1) to the data acquisition device, and ensure that the connection between the stress monitoring instrument (1) and the data acquisition device is normal; Step 3: Debugging and testing the stress monitoring instrument (1) to ensure that the stress monitoring instrument (1) can work normally and accurately record stress data. According to the monitoring plan and requirements, start the stress monitoring instrument (1) and start recording stress data; Step 4: Analyze and process the monitored stress data, generate a monitoring report and take corresponding measures based on the monitoring results; Step 5: Regularly inspect, maintain and service the stress monitoring instrument (1) to ensure the normal operation of the stress monitoring instrument (1) and the accuracy of the data. If the stress monitoring instrument (1) is found to be faulty or damaged, it should be repaired or replaced in a timely manner.

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