A device for preventing and controlling ground subsidence induced by caves

Abstract

The present invention relates to a device for preventing and controlling ground subsidence induced by a cave, which is applied to the technical field of ground subsidence prevention and control. The device comprises a subsidence prevention and control shell and a prevention and control intelligent controller. A through hole one is provided at the top of the subsidence prevention and control shell, and a through hole two is provided at the bottom of the subsidence prevention and control shell. A hollow conduit one is installed in the through hole one, an observation mark is threadedly connected to the top of the hollow conduit one, an air pressure sensor one is installed at the bottom of the observation mark, a hollow conduit two is inserted into the hollow conduit one, a piston is fixed to the top of the hollow conduit two, and a fixed block is installed at the bottom of the hollow conduit two. A main control module, a detection module, a command module and a gyroscope are arranged in the prevention and control intelligent controller. In the above-mentioned device for preventing and controlling ground subsidence induced by a cave, the fixed block of the hollow conduit two is fixed in the soil layer. When the soil layer under the hardened soil road surface settles, the air pressure in the hollow conduit one changes, and the settlement amount can be obtained through the air pressure change.

Description

Technical Field

[0001] The present invention relates to a ground subsidence prevention and control device, and in particular to a ground subsidence prevention and control device for cave-induced ground subsidence, which is applied in the technical field of ground subsidence prevention and control. Background Art

[0002] Ground subsidence is also called ground subsidence or land subsidence. It is a local downward movement or engineering geological phenomenon in which the surface elevation of the earth's crust is lowered due to the consolidation and compression of loose underground strata under the influence of human engineering and economic activities. It generally manifests itself in two forms: regional subsidence and local subsidence. It can cause buildings to tilt, destroy the stability of the foundation, and have a great impact on production and life. Existing ground subsidence prevention and control measures can measure regional and local subsidence more accurately. However, in some areas, the soil road surface is hardened due to machine rolling and personnel trampling during construction, especially the soil road surface above the karst cave. Before the upper road surface can no longer support small-scale subsidence and land subsidence in the karst cave, it is difficult to understand the situation under the hardened soil road surface by the usual measurement method.

[0003] The invention patent with application number 202121587351.9 discloses a ground subsidence detection device, including an installation component and a detection component, wherein the installation component includes a support rod and a support seat, and the support seat is fixedly installed at one end of the support rod; the detection component includes a first detection rod, a second detection rod, a connecting plate, a slider and a first sensor, the first detection rod is slidably installed on the support seat, one end of the second detection rod is slidably installed in the first detection rod, one end of the connecting plate is fixedly installed on the second detection rod, and the connecting plate is arranged in the first detection rod, the slider is fixedly installed on the end of the connecting plate away from the second detection rod, and the slider is arranged in the first detection rod, the first sensor is arranged on the slider, and the first sensor is arranged in the first detection rod. The above device can realize rapid detection of ground subsidence when the detection personnel are not at the detection site to ensure construction safety.

[0004] Although the scheme has taken into account the fact that inspectors cannot measure ground subsidence in real time at the inspection site, the degree of automation and accuracy of the inspection still needs to be improved. It basically measures the overall ground subsidence over a larger area, and it is difficult to accurately and effectively measure the local regional subsidence under the hardened soil road surface, especially the ground subsidence induced by caves. Summary of the invention

[0005] In view of the above-mentioned prior art, the technical problem to be solved by the present invention is that the degree of automation and detection accuracy of ground subsidence detection still need to be improved. Basically, the overall ground subsidence measurement is carried out over a larger area, and it is difficult to accurately and effectively measure the local regional subsidence under the hardened soil road surface, especially the soil road surface subsidence induced by caves.

[0006] In order to solve the above problems, the present invention provides a device for preventing and controlling ground subsidence induced by a cave, comprising a subsidence prevention and control shell and a prevention and control intelligent controller, wherein a through hole 1 is provided at the top of the subsidence prevention and control shell, and a through hole 2 is provided at the bottom of the subsidence prevention and control shell; A hollow conduit 1 is installed in the through hole 1, an observation mark is threadedly connected to the top of the hollow conduit 1, an air pressure sensor 1 is installed at the bottom of the observation mark, a hollow conduit 2 is inserted into the hollow conduit 1, a piston is fixed to the top of the hollow conduit 2, and a fixing block is installed at the bottom of the hollow conduit 2; The prevention and control intelligent controller is arranged on the outer wall of the settlement prevention and control shell. The prevention and control intelligent controller is provided with a main control module, a detection module, a command module and a gyroscope. The main control module is electrically connected to the detection module and the command module respectively, and the detection module is electrically connected to the air pressure sensor 1 and the gyroscope respectively.

[0007] In the above-mentioned device for preventing and controlling ground subsidence induced by caves, the subsidence prevention and control shell is installed on the hardened soil road surface, and the fixed block at the bottom of the hollow conduit No. 2 is fixed in the soil layer under the hardened soil road surface. When the soil layer under the hardened soil road surface settles, the hollow conduit No. 2 will be driven to move together, and the piston at the top of the hollow conduit No. 2 will also perform the same movement. The action of the piston causes the air pressure in the hollow conduit No. 1 to change, which can be measured by the air pressure sensor No. 1 installed at the bottom of the observation mark. The settlement amount can be obtained by calculating the air pressure change.

[0008] As a further improvement of the present application, an air pressure sensor 2 is installed at the bottom of the piston, a through hole 3 is opened at the bottom of the hollow conduit 2, a detection rod is inserted in the hollow conduit 2, a float is installed at the bottom of the detection rod, and the detection module is electrically connected to the air pressure sensor 2.

[0009] As a further improvement of the present application, a leveling mechanism is installed on the subsidence prevention and control shell, and four leveling mechanisms are provided and are respectively located on the outer wall of the subsidence prevention and control shell.

[0010] As a further improvement of the present application, the leveling mechanism includes a leveling base, a driving member installed on the leveling base, a driving gear fixed to the output shaft of the driving member, a transmission shaft one and a transmission shaft two which are rotatably connected to the leveling base, transmission gear one and transmission gear two are respectively installed at both ends of the transmission shaft one, the driving gear is meshed with the transmission gear one, the transmission gear two is meshed with the transmission gear three installed on the transmission shaft two, an electric push rod is installed on the transmission shaft two, a push plate is installed at the output end of the electric push rod, and the instruction module is electrically connected to the driving member and the electric push rod respectively.

[0011] As another improvement of the present application, a pin is fixed on the top of the settlement control shell, and the settlement control shell is connected to the cover plate through the pin. A photovoltaic cell assembly is installed on the cover plate, and the photovoltaic cell assembly is electrically connected to the main control module.

[0012] As another improved supplement of the present application, an air source is installed on the sedimentation control shell, and the air source is provided with two output ends through an air duct, and the two output ends on the air duct are respectively connected with the top of the inner cavity of the sedimentation control shell and the pneumatic push rod, and an electromagnetic air valve 1 and an electromagnetic air valve 2 are respectively installed on the two output ends of the air duct, and the instruction module is electrically connected to the air source, the electromagnetic air valve 1 and the electromagnetic air valve 2 respectively.

[0013] As another improved supplement of the present application, a lifting top plate is provided in through hole two, and a through hole four is opened in the lifting top plate, and through hole four is plugged into hollow conduit one, and a lifting bottom plate is fixed to hollow conduit one below the lifting top plate, and a pneumatic push rod is installed on the lifting bottom plate, and the output end of the pneumatic push rod is connected to the lifting top plate.

[0014] As another improvement of the present application, the sedimentation control shell is connected to the filling liquid tank through a liquid guide tube, a water pump is installed on the liquid guide tube, an electromagnetic liquid guide valve is installed on the liquid guide tube, and the instruction module is electrically connected to the electromagnetic liquid guide valve and the water pump respectively.

[0015] To summarize, by installing the settlement control shell on the hardened soil road surface, the device can be kept level through the leveling mechanism, and the observation mark installed on the top of the hollow conduit one enables the observer to observe the settlement within the range in an existing manner. After the settlement control shell is installed on the hardened soil road surface, the fixed block at the bottom of the hollow conduit two is fixed in the soil layer under the hardened soil road surface. When the soil layer under the hardened soil road surface settles, the hollow conduit two is driven to move together, and the piston at the top of the hollow conduit two also performs the same movement. The action of the piston causes the air pressure in the hollow conduit one to change, which can be measured by the air pressure sensor one installed at the bottom of the observation mark, and the settlement amount can be obtained by calculating the change in air pressure. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the first and second embodiments of the present application; Figure 2 This is a schematic diagram of the cross-sectional structure of the settlement prevention and control housing of the first and second embodiments of the present application; Figure 3 This is a schematic diagram of the three-dimensional structure of the settlement prevention and control housing of the first and second embodiments of the present application; Figure 4 This is a schematic diagram of the structure of the leveling mechanism of the first and second embodiments of the present application; Figure 5 This is a control principle diagram of the prevention and control intelligent controller of the first embodiment of this application; Figure 6 This is a schematic diagram of the three-dimensional structure of the settlement prevention and control housing of the first and second embodiments of the present application from another angle; Figure 7 This is a partial cross-sectional structural schematic diagram of the bottom of the settlement control housing of the first and second embodiments of the present application; Figure 8 This is a control schematic diagram of the prevention and control intelligent controller of the second implementation mode of this application.

[0017] Description of the numbers in the figure: 1. Sedimentation prevention and control shell; 2. Through hole 1; 3. Through hole 2; 4. Hollow conduit 1; 5. Observation mark; 6. Air pressure sensor 1; 7. Hollow conduit 2; 8. Fixed block; 9. Piston; 10. Prevention and control intelligent controller; 11. Air pressure sensor 2; 12. Float; 13. Through hole 3; 14. Detection rod; 15. Leveling mechanism; 16. Cover plate; 17. Latch; 18. Photovoltaic cell assembly; 19. Air source; 20. Air guide pipe; 21. Solenoid air guide valve 1; 22. Solenoid air guide valve 2; 23. Lifting top plate; 24. Through hole 4; 25. Pneumatic push rod; 26. Lifting bottom plate; 27. Solenoid liquid guide valve; 28. Water pump; 29. ​​Liquid guide pipe; 30. Filling liquid tank; 31. Driving part; 32. Driving gear; 33. Transmission gear 1; 34. Transmission gear 2; 35. Transmission gear 3; 36. Electric push rod; 37. Push plate. DETAILED DESCRIPTION

[0018] Two implementation modes of the present application are described in detail below with reference to the accompanying drawings.

[0019] The first implementation method: Figure 1-Figure 5 A device for preventing and controlling ground subsidence induced by a cave is shown, comprising a subsidence prevention and control housing 1 and a prevention and control intelligent controller 10. A through hole 1 2 is provided at the top of the subsidence prevention and control housing 1, and a through hole 2 3 is provided at the bottom of the subsidence prevention and control housing 1. A hollow conduit 14 is installed in the through hole 12, an observation mark 5 is threadedly connected to the top of the hollow conduit 14, an air pressure sensor 16 is installed at the bottom of the observation mark 5, a hollow conduit 27 is inserted into the hollow conduit 14, a piston 9 is fixed to the top of the hollow conduit 27, and a fixing block 8 is installed at the bottom of the hollow conduit 27; The observation mark 5 at the top of the hollow conduit 4 allows the observer to measure the ground settlement in an area by existing means. The settlement control shell 1 is installed in the hardened soil road surface, and the fixed block 8 at the bottom of the hollow conduit 2 7 is fixed in the soil layer under the hardened soil road surface. When the soil layer under the hardened soil road surface settles, the hollow conduit 2 7 and the piston 9 are driven to move together, and the movement of the piston 9 causes the air pressure in the hollow conduit 4 to change.

[0020] The prevention and control intelligent controller 10 is arranged on the outer wall of the settlement prevention and control shell 1. The prevention and control intelligent controller 10 is provided with a main control module, a detection module, a command module and a gyroscope. The main control module is electrically connected to the detection module and the command module respectively, and the detection module is electrically connected to the air pressure sensor 6 and the gyroscope respectively.

[0021] Ground subsidence induced by caves refers to the karst caves, overlying sediments and groundwater, which constitute a three-phase mechanical equilibrium system of solid, liquid and gas. When the groundwater level changes to a certain extent, the equilibrium is destroyed and the overlying loose sediments suddenly collapse. Therefore, in order to prevent and control ground subsidence induced by caves, we cannot only observe the ground subsidence, but also need to measure the soil layer above the cave and the groundwater level in the cave at the same time. By jointly measuring the soil layer and the groundwater level, we can judge to a certain extent whether the measured area may be induced by the cave to cause ground subsidence or collapse.

[0022] When the soil layer under the hardened soil road surface settles, the hollow conduit 7 and the piston 9 move with the soil layer. The movement of the piston 9 causes the air pressure in the hollow conduit 4 to change. The air pressure sensor 6 installed at the bottom of the observation mark 5 can measure the change in air pressure. The detection module sends the air pressure change to the main control module, and the main control module can obtain the settlement amount through calculation.

[0023] A pressure sensor 11 is installed at the bottom of the piston 9, a through hole 13 is opened at the bottom of the hollow conduit 7, a detection rod 14 is inserted in the hollow conduit 7, a float 12 is installed at the bottom of the detection rod 14, and the detection module is electrically connected to the pressure sensor 11. When installing the device, the detection rod 14 is inserted into the underground cave, and the float 12 at the bottom of the detection rod 14 will float on the groundwater surface in the cave. As the groundwater level changes, the float 12 moves and drives the detection rod 14 to move together. The movement of the detection rod 14 will cause the air pressure in the hollow conduit 7 to change, and the pressure sensor 11 installed at the bottom of the piston 9 can measure the change in air pressure. The detection module sends the air pressure change to the main control module, and the main control module can obtain the groundwater level through calculation.

[0024] To install a settlement control device, it is necessary to first open a hole matching the device at the installation location to accommodate the device. During installation, the basic road surface is in a state of not being paved. During the installation process, the device may be installed unevenly, resulting in a systematic error in the measurement of ground settlement after the installation is completed, which will have a certain impact on construction and maintenance. Therefore, a leveling mechanism 15 is installed on the settlement control shell 1. There are four leveling mechanisms 15, which are respectively located on the outer wall of the settlement control shell 1. A gyroscope is provided in the control intelligent controller 10, and the detection module is electrically connected to the gyroscope. During the installation process, when the detection module detects that the device is tilted through the gyroscope, the tilt angle is sent to the main control module, and the main control module will The tilt angle is compared with the horizontal angle (the horizontal angle during installation is set in the main control module) to determine the tilt direction of the device, and the device is readjusted to the horizontal through the leveling mechanism 15. The leveling mechanism 15 includes a leveling base, a driving member 31 installed on the leveling base, a driving gear 32 fixed to the output shaft of the driving member 31, a transmission shaft 1 and a transmission shaft 2 both of which are rotatably connected to the leveling base, a transmission gear 1 33 and a transmission gear 2 34 are respectively installed at both ends of the transmission shaft 1, the driving gear 32 is meshed with the transmission gear 1 33, the transmission gear 2 34 is meshed with the transmission gear 3 35 installed on the transmission shaft 2, and an electric push rod 36 is installed on the transmission shaft 2. A push plate 37 is installed at the output end, and the instruction module is electrically connected to the driving member 31 and the electric push rod 36 respectively. When the device needs to be readjusted to the horizontal, the main control module controls the driving member 31 and the electric push rod 36 through the instruction module, first controlling the driving member 31 to move, and the driving member 31 drives the driving gear 32 at the output end to rotate, and the driving gear 32 drives the transmission gear 1 33 to move, and the transmission gear 1 33 drives the transmission gear 2 34 to move through the driving shaft 1, and the transmission gear 2 34 drives the transmission gear 3 35 to move, and the transmission gear 3 35 drives the electric push rod 36 to rotate inward or outward through the transmission shaft 2. The main control module controls the outer surface of the settlement prevention and control housing 1 through the instruction module according to the tilt direction of the device The driving parts 31 of one or more leveling mechanisms 15 on the wall make the electric push rod 36 rotate to a specified angle (the angle to which the electric push rod 36 of each leveling mechanism 15 should rotate is calculated by the main control module through the inclination angle sent by the detection module as the specified angle). After the leveling mechanisms 15 are rotated to the specified angle, the instruction module controls the electric push rod 36 to move and extend it to a specified action distance (the distance to which the electric push rod 36 of each leveling mechanism 15 should extend is calculated by the main control module through the inclination angle sent by the detection module as the specified action distance). At this time, the push plate 37 at the output end of the electric push rod 36 presses against the inner wall of the hole, giving the device a reaction force to move the device to a horizontal position.

[0025] After the device is installed, the fixed block 8 at the bottom of the hollow conduit 2 7 should be fixed in the soil layer under the hardened soil road surface, and the float 12 at the bottom of the detection rod 14 should float on the groundwater surface in the cave. The air pressure change information detected by the air pressure sensor 1 6 and the air pressure sensor 2 11 is sent to the main control module through the detection module, and the main control module calculates the air pressure change information to obtain the soil layer settlement and the groundwater level. The soil layer settlement and the groundwater level information are compared, calculated, etc., which can predict to a certain extent whether the cave in the detection area will induce ground subsidence.

[0026] In order to protect the internal structure of the device, a pin 17 is fixed on the top of the settlement control shell 1, and the settlement control shell 1 is connected to the cover 16 through the pin 17. The cover 16 can make circular motion with the pin 17 as the axis. When the observation mark 5 needs to be used, the cover 16 is unscrewed and it can be used normally. After use, the cover 16 is closed to the initial position, which can effectively reduce the aging degree of components and increase the life of the device. At the same time, there are two ways to power the device, one is battery power supply, and the other is power transmission through wires. Considering that the installation location of the device is relatively random, the use of battery power supply requires the monitor to replace the battery regularly, which is time-consuming and labor-intensive. Although power transmission through wires does not require manual work, it requires the use of longer cables to connect to the area where electricity can be connected, which increases the power supply cost of the ground settlement monitoring device. Therefore, a photovoltaic cell assembly 18 is installed on the cover 16, and the photovoltaic cell assembly 18 is electrically connected to the main control module.

[0027] Among them, the photovoltaic cell assembly 18 is a common solar power supply assembly in the field, which is an existing technology well known to those skilled in the art. It is not within the protection scope of the technical solution of this application, and this application will not elaborate on its specific structure and working principle.

[0028] The second implementation method: Figure 1-Figure 3 and Figure 6-Figure 8 A device for preventing and controlling ground subsidence induced by caves is shown. Different from the first embodiment, when severe ground subsidence occurs suddenly, it takes a certain amount of time for emergency personnel to arrive at the scene for repair. If emergency measures are taken for the subsided part within this period of time, the subsidence rate can be alleviated to a certain extent, so that more sufficient processing time can be gained for the emergency personnel, and the development into ground collapse can be avoided to a certain extent, thus providing protection for the personal and property safety of personnel.

[0029] When serious ground subsidence occurs, the main control module can determine whether the ground subsidence occurs in the detection area of ​​the device through the air pressure information of the air pressure sensor 16 and the air pressure sensor 2 11 sent by the detection module. After determining the location of the occurrence, the ground subsidence prevention and control device in the corresponding area will take emergency measures. An air source 19 is installed on the settlement prevention and control shell 1. The air source 19 has two output ends through the air guide pipe 20, and the air guide pipe 20 is respectively connected to the top of the settlement prevention and control shell 1 and the pneumatic push rod 25. The two output ends of the air guide pipe 20 are respectively provided with an electromagnetic air guide valve 1 21 and an electromagnetic air guide valve 2 22. The instruction module is electrically connected to the air source 19, the electromagnetic air guide valve 1 21 and the electromagnetic air guide valve 2 22 respectively. The output end of the air guide pipe 20 connected to the pneumatic push rod 25 can be controlled by the electromagnetic air guide valve 22 to extend or retract the pneumatic push rod 25. A lifting top plate is provided in the through hole 2 3 23, the lifting top plate 23 is provided with a through hole four 24, and the through hole four 24 is plugged with the hollow conduit one 4. The hollow conduit one 4 is located below the lifting top plate 23 and is fixed with a lifting bottom plate 26. A pneumatic push rod 25 is installed on the lifting bottom plate 26. The output end of the pneumatic push rod 25 is connected to the lifting top plate 23. The initial position of the pneumatic push rod 25 is to clamp the lifting top plate 23 in the through hole two 3 to ensure the airtightness of the settlement prevention and control shell 1. When the lifting top plate 23 needs to be opened, the pneumatic push rod 25 retracts to drive the lifting top plate 23 to descend. The settlement prevention and control shell 1 is connected to the filling liquid tank 30 through a liquid guide tube 29. A water pump 28 is installed on the liquid guide tube 29. An electromagnetic liquid guide valve 27 is installed on the liquid guide tube 29. The instruction module is electrically connected to the electromagnetic liquid guide valve 27 and the water pump 28 respectively. The filling liquid tank 30 stores a filling liquid that can solidify quickly and has a certain strength, which can support the settlement of the ground to a certain extent.

[0030] When dealing with more serious ground subsidence, the main control module of the ground subsidence prevention and control device will first control the gas source 19 and the electromagnetic gas valve 22 through the command module. The electromagnetic gas valve 22 is opened, and the gas source 19 releases the gas in the pneumatic push rod 25 to retract the pneumatic push rod 25, drive the lifting top plate 23 to move, and open the settlement prevention and control shell 1. After the pneumatic push rod 25 retracts to the bottom, the command module controls the electromagnetic gas valve 22 to close, so that the position of the pneumatic push rod 25 is locked, and the command module controls the opening of the electromagnetic liquid valve 27 and water pump 28 make the filling liquid in the filling liquid tank 30 flow into the settlement control shell 1, and the filling liquid flows out through the through hole 23 along the inner wall of the settlement control shell 1. The command module then controls the electromagnetic air valve 1 21 to open, and pressurizes the inside of the settlement control shell 1, so that the filling liquid can quickly penetrate into the gaps and holes caused by ground settlement. At the same time, injecting gas into the settlement control shell 1 can also accelerate the solidification of the filling liquid, improve the effect of emergency treatment, and buy more emergency treatment time for emergency personnel.

[0031] In view of current practical needs, the above-mentioned implementation mode adopted in this application is not limited to the scope of protection. Various changes made within the knowledge scope of technical personnel in this field without departing from the concept of this application still fall within the scope of protection of the present invention.

Claims

1. A device for preventing and controlling ground subsidence induced by caves, characterized in that: It comprises a settlement prevention and control housing (1) and a prevention and control intelligent controller (10), wherein the top end of the settlement prevention and control housing (1) is provided with a first through hole (2), and the bottom end of the settlement prevention and control housing (1) is provided with a second through hole (3); A hollow conduit 1 (4) is installed in the through hole 1 (2); an observation mark (5) is threadedly connected to the top of the hollow conduit 1 (4); an air pressure sensor 1 (6) is installed at the bottom of the observation mark (5); a hollow conduit 2 (7) is inserted into the hollow conduit 1 (4); a piston (9) is fixed to the top of the hollow conduit 2 (7); and a fixing block (8) is installed at the bottom of the hollow conduit 2 (7); The control and prevention intelligent controller (10) is arranged on the outer wall of the settlement control and prevention shell (1), and a main control module, a detection module, a command module and a gyroscope are arranged in the control and prevention intelligent controller (10), the main control module is electrically connected to the detection module and the command module respectively, and the detection module is electrically connected to the air pressure sensor 1 (6) and the gyroscope respectively.

2. A device for preventing and controlling cave-induced land subsidence according to claim 1, characterized in that: A second air pressure sensor (11) is installed at the bottom of the piston (9), a third through hole (13) is opened at the bottom of the second hollow conduit (7), a detection rod (14) is inserted into the second hollow conduit (7), a float (12) is installed at the bottom of the detection rod (14), and the detection module is electrically connected to the second air pressure sensor (11).

3. A device for preventing and controlling cave-induced land subsidence according to claim 1, characterized in that: A leveling mechanism (15) is installed on the subsidence prevention and control shell (1), and four leveling mechanisms (15) are provided and are respectively located on the outer wall of the subsidence prevention and control shell (1).

4. A device for preventing and controlling cave-induced land subsidence according to claim 3, characterized in that: The leveling mechanism (15) comprises a leveling base, a driving member (31) mounted on the leveling base, a driving gear (32) fixed to an output shaft of the driving member (31), a transmission shaft 1 and a transmission shaft 2 both rotatably connected to the leveling base, a transmission gear 1 (33) and a transmission gear 2 (34) being mounted at both ends of the transmission shaft 1, the driving gear (32) being meshed with the transmission gear 1 (33), the transmission gear 2 (34) being meshed with the transmission gear 3 (35) mounted on the transmission shaft 2, an electric push rod (36) being mounted on the transmission shaft 2, a push plate (37) being mounted at an output end of the electric push rod (36), and the instruction module being electrically connected to the driving member (31) and the electric push rod (36), respectively.

5. The device for preventing and controlling cave-induced land subsidence according to claim 1, characterized in that: A latch (17) is fixed to the top of the subsidence prevention and control housing (1), and the subsidence prevention and control housing (1) is plugged into a cover plate (16) via the latch (17). A photovoltaic cell assembly (18) is mounted on the cover plate (16), and the photovoltaic cell assembly (18) is electrically connected to a main control module.

6. The device for preventing and controlling cave-induced land subsidence according to claim 1, characterized in that: The settlement control housing (1) is provided with an air source (19), the air source (19) being provided with two output ends through an air guide tube (20), and the two output ends on the air guide tube (20) being respectively connected to the top of the inner cavity of the settlement control housing (1) and the pneumatic push rod (25), and the two output ends of the air guide tube (20) are respectively provided with an electromagnetic air guide valve 1 (21) and an electromagnetic air guide valve 2 (22), and the command module is respectively electrically connected to the air source (19), the electromagnetic air guide valve 1 (21) and the electromagnetic air guide valve 2 (22).

7. The device for preventing and controlling cave-induced land subsidence according to claim 1, characterized in that: A lifting top plate (23) is arranged in the through hole two (3), and a through hole four (24) is opened in the lifting top plate (23). The through hole four (24) is plugged into the hollow conduit one (4). A lifting bottom plate (26) is fixed to the hollow conduit one (4) below the lifting top plate (23). A pneumatic push rod (25) is installed on the lifting bottom plate (26), and an output end of the pneumatic push rod (25) is connected to the lifting top plate (23).

8. The device for preventing and controlling cave-induced land subsidence according to claim 1, characterized in that: The sedimentation prevention and control housing (1) is connected to the filling liquid tank (30) via a liquid guide tube (29); a water pump (28) is installed on the liquid guide tube (29); an electromagnetic liquid guide valve (27) is installed on the liquid guide tube (29); and the command module is electrically connected to the electromagnetic liquid guide valve (27) and the water pump (28), respectively.

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