Landslide indoor physical simulation device for fault and fracture scenes

Abstract

The invention discloses a landslide indoor physical simulation device for fault and fracture scenes. The landslide indoor physical simulation device comprises a landslide simulation area and a rainfall simulation area, the landslide simulation area comprises a hollow cavity, a plurality of bearing plates are arranged above a bottom plate in the cavity, a telescopic connecting structure is arranged between every two adjacent bearing plates, and two parallel gear rails are arranged on the bottom plate; a plurality of gears which are matched with the gear track and are arranged in two rows are arranged on the gear track, a base is arranged among the four gears in two adjacent rows, a first telescopic rod is arranged on the base, and the output end of the first telescopic rod is connected with the bearing plate; a plurality of first side plates are arranged on one side of the side plate in the cavity, and a transverse fault simulation structure is arranged between the side plate and each first side plate; and a landslide body is placed on the bearing plate. According to the invention, the fracture and fault of the landslide mass are simulated, the diversity of indoor landslide research is improved, and data reference is provided for landslide early warning.

Description

Technical Field

[0001] The present invention relates to the technical field of a whole-process evolution device for landslide scenarios with fractures and faults, and particularly to a landslide indoor physical simulation device for fault and fracture scenarios. Background Art

[0002] As a common natural disaster, landslides usually occur in areas with complex terrains such as mountains and hills, seriously threatening people's lives and property safety and the stability of infrastructure. The occurrence of landslides is often closely related to factors such as geological structures, precipitation, and geotechnical conditions. In particular, the existence of faults and fracture zones further increases the occurrence probability of landslide disasters. Therefore, studying the occurrence mechanism, evolution process of landslides, and their relationship with faults and fractures is of great significance for effectively predicting landslide disasters and taking preventive measures.

[0003] Currently, landslide research mainly relies on means such as field investigations, numerical simulations, and indoor physical experiments. Although field investigations can provide rich natural environment data and numerical simulations can predict the landslide process to a certain extent, simulating landslide phenomena under controllable conditions in a laboratory environment is still an important way to study the occurrence mechanism and evolution process of landslides. However, existing landslide indoor physical simulation devices have certain limitations. Most devices adopt fixed scenario settings and simple simulation models, making it difficult to handle diverse landslide processes under different geological conditions.

[0004] Therefore, developing an indoor physical simulation device that can simulate landslide processes under different geological conditions, especially the initiation, evolution, and amplification effects of landslides under the action of fractures and faults, has become an important requirement in landslide disaster research. Through this device, the influence of faults and fracture zones can be accurately reproduced, and the behavior of the landslide body under the action of faults and fractures can be simulated, thereby providing more detailed data support and theoretical basis for the cause analysis, prediction, and prevention of landslide disasters. This device will help to deeply understand the key role of fracture zones and faults in the occurrence of landslides, improve the early warning accuracy of landslide disasters, and thus provide more effective technical means for reducing disaster losses. Summary of the Invention

[0005] To overcome the above-mentioned problems, the purpose of the present invention is to provide a landslide indoor physical simulation device for fault and fracture scenarios, which can simulate the fractures and faults of the landslide body through this device, improve the diversity of indoor landslide research, and provide data reference for landslide early warning.

[0006] To achieve the above purpose, the technical solution adopted by the present invention is: a landslide indoor physical simulation device for fault and fracture scenarios, including a landslide simulation area and a rainfall simulation area;

[0007] The landslide simulation area includes a hollow cavity. Above the inner bottom plate of the cavity, there are several bearing plates. An expandable connection structure is arranged between adjacent two bearing plates. On the bottom plate, there are two parallel gear tracks.

[0008] On the gear tracks, there are several gears arranged in two rows and matching with the gear tracks. A base is arranged between four gears in adjacent two rows. On the base, there is a first telescopic rod. The output end of the first telescopic rod is connected with the bearing plate. The first telescopic rod, the base and the four gears form a longitudinal fault and fracture simulation structure.

[0009] On one side of the inner side plate of the cavity, there are several first side plates. A transverse fault simulation structure is arranged between the side plate and each first side plate.

[0010] The rainfall simulation area includes a water supply tank, a water pump, a water delivery pipeline and a spraying structure. The spraying structure is arranged inside the top of the cavity.

[0011] A landslide body is placed on the bearing plate.

[0012] Preferably, an expandable connection structure is arranged at the connection between the bearing plate and the first side plate.

[0013] Preferably, the transverse fault simulation structure includes a second telescopic rod. One end of the second telescopic rod is connected with the side plate, and the other end is connected with the first side plate.

[0014] Preferably, the spraying structure includes several spray heads, and the spray heads are arranged in a single row at equal intervals.

[0015] Preferably, both the first telescopic rod and the second telescopic rod are electric telescopic rods, and the power is provided by the motors at their bottoms.

[0016] Preferably, other side plates of the landslide simulation area except the side plate adopt transparent material panels.

[0017] Preferably, there is a certain gap between the bearing plate and the end of the side plate far from the first side plate.

[0018] Preferably, a camera, a laser rangefinder and a soil internal sensor in communication connection with a PLC controller are arranged in the landslide simulation area. The camera is used to record the state of the landslide body. The laser rangefinder is used to measure the displacement of the same point during the occurrence of the landslide. The soil internal sensor is used to measure the water content parameter, stress parameter and matrix suction parameter during the occurrence of the landslide.

[0019] Preferably, the camera is arranged on the side plate in the cavity far from the first side plate, and the laser rangefinder is arranged on the side plate in the cavity far from the first side plate.

[0020] Preferably, the internal soil sensor is disposed within the landslide body.

[0021] The beneficial effects of the present invention are as follows: By controlling the longitudinal fault and fracture simulation structure to simulate the longitudinal fault in the landslide, enabling it to move on the gear track to control the position of the fault, and simulating the transverse fault in the landslide through the transverse fault simulation structure; by controlling the longitudinal fracture and fault simulation device to perform horizontal movement on the gear track, tearing the landslide body to simulate the fractures existing in the landslide body, and simultaneously controlling the position and size of the fractures; cooperating with the rainfall simulation area to simulate the landslide disasters caused by rainfall in the actual situation, realizing the simulation and control of the internal and external parameters during the landslide process, improving the diversity of indoor landslide research, and providing data references for landslide early warning. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a schematic diagram of the overall structure of this embodiment;

[0023] Figure 2 is a schematic diagram of the structure of the longitudinal fault and fracture simulation structure of this embodiment;

[0024] Figure 3 is a front view structural schematic diagram of the longitudinal fault and fracture simulation structure of this embodiment;

[0025] Figure 4 is a side view structural schematic diagram of the longitudinal fault and fracture simulation structure of this embodiment;

[0026] Figure 5 is a front view structural schematic diagram of the transverse fault simulation structure of this embodiment;

[0027] Figure 6 is a schematic diagram of the structure of the rainfall simulation area of this embodiment;

[0028] Figure 7 is a front view structural schematic diagram of the overall structure of this embodiment;

[0029] Figure 8 is a schematic diagram of the actual application of simulating the longitudinal fault condition of this embodiment;

[0030] Figure 9 is a schematic diagram of the actual application of simulating the transverse fault condition of this embodiment;

[0031] Figure 10 is a schematic diagram of the actual application of simulating the longitudinal fracture condition of this embodiment;

[0032] Figure 11 is a schematic diagram of the actual application of simulating the precipitation condition of this embodiment;

[0033] Figure 12 is a schematic diagram of the actual application of this embodiment.

[0034] In the figure: 1. Water supply tank; 2. Water pump; 3. Water conveyance pipeline; 4. Spraying structure; 5. Spraying head; 6. Landslide body; 7. Camera; 8. Laser rangefinder; 9. Soil internal sensor; 10. Cavity; 11. Bottom plate; 12. Bearing plate; 13. Telescopic connection structure; 14. Gear track; 15. Side plate; 16. First side plate; 17. Transverse fault simulation structure; 18. Second telescopic rod; 20. Longitudinal fault and fracture simulation structure; 21. First telescopic rod; 22. Base; 23. Gear. Specific implementation manner

[0035] The following elaborates on the preferred embodiments of the present invention in conjunction with the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making the protection scope of the present invention more clearly defined.

[0036] See Figures 1 - 12 , this embodiment discloses a landslide indoor physical simulation device for fault and fracture scenarios, including a landslide simulation area and a rainfall simulation area;

[0037] The landslide simulation area includes a hollow cavity 10. Above the bottom plate 11 in the cavity 10, a plurality of bearing plates 12 are arranged. A telescopic connection structure 13 is arranged between adjacent two bearing plates 12. On the bottom plate 11, two parallel gear tracks 14 are arranged, and the gear tracks 14 are welded on the bottom plate 11;

[0038] On the gear tracks 14, a plurality of gears 23 arranged in two rows and matching with the gear tracks 14 are arranged. A base 22 is arranged between four adjacent gears 23 in two adjacent rows. A first telescopic rod 21 is arranged on the base 22, and the output end of the first telescopic rod 21 is connected to the bearing plate 12; the first telescopic rod 21, the base 22 and the four gears 23 form a longitudinal fault and fracture simulation structure 20. The four gears 23 of each group of longitudinal fault and fracture simulation structures 20 can move independently on the gear tracks 14, so as to control the position and size of the simulated crack;

[0039] On one side of the inner side plate 15 of the cavity 10, a plurality of first side plates 16 are arranged. A transverse fault simulation structure 17 is arranged between the side plate 15 and each first side plate 16;

[0040] The rainfall simulation area includes a water supply tank 1, a water pump 2, a water conveyance pipeline 3 and a spraying structure 4. The spraying structure 4 is arranged inside the top of the cavity 10. The spraying structure 4 includes a plurality of spraying heads 5, and the spraying heads 5 are arranged at equal intervals in a single row;

[0041] A landslide body 6 is placed on the bearing plate 12.

[0042] A telescopic connection structure 13 is provided at the connection between the bearing plate 12 and the first side plate 16, which can isolate the landslide body 6 from the external device, preventing the materials of the landslide body 6 from falling out and affecting the operation.

[0043] The transverse fault simulation structure 17 includes a second telescopic rod 18. One end of the second telescopic rod 18 is connected to the side plate 15, and the second telescopic rod 18 can be welded to the side plate 15. The other end of the second telescopic rod 18 is connected to the first side plate 16 and is used to displace the first side plate 16.

[0044] Both the first telescopic rod 21 and the second telescopic rod 18 are electric telescopic rods, powered by the motors at their bottoms. The first telescopic rod 21 and the second telescopic rod 18 can freely adjust their telescopic lengths to simulate faults at different depths.

[0045] All side plates of the landslide simulation area except the side plate 15 are made of transparent panels.

[0046] The lower part of the right side wall of the landslide simulation area is closed to prevent the materials of the flowing landslide body 6 from invading. There is a certain gap between the bearing plate 12 and the side plate end far from the first side plate 16, without obstruction, facilitating the outflow of the landslide body 6.

[0047] A camera 7, a laser rangefinder 8, and a soil internal sensor 9 that are communicatively connected to the PLC controller are provided in the landslide simulation area. The camera 7 is used to record the state of the landslide body 6. The laser rangefinder 8 is used to measure the displacement of the same point during the landslide. The soil internal sensor 9 is used to measure water content parameters, stress parameters, matrix suction parameters, etc. during the landslide. The camera 7 is arranged on the side plate in the cavity 10 far from the first side plate 16 to facilitate the observation of the distance. The laser rangefinder 8 is arranged on the side plate in the cavity 10 far from the first side plate 16. The soil internal sensor 9 is arranged in the landslide body 6, and multiple ones can be provided.

[0048] In this embodiment, five bearing plates 12 are provided, and correspondingly, five longitudinal fault and fracture simulation structures 20 are also provided. If a finer simulation environment is needed later, the number of bearing plates 12 and the number of longitudinal fault and fracture simulation structures 20 can be adjusted.

[0049] Simulating longitudinal faults: Before putting the materials of the simulated landslide body 6, control the nearest longitudinal fault and fracture simulation structure 20 to move to both sides of the fault position, then put the landslide body 6 model on it, and then keep one side of the first telescopic rod 21 stationary and adjust the telescopic length of the other side to make the landslide body 6 model misaligned, so as to achieve the simulation of longitudinal faults at specific positions.

[0050] Simulating longitudinal fracture: Similarly, before placing the material of the simulated landslide body 6, control the nearest longitudinal fault and the fracture simulation structure 20 to move to both sides of the fracture, then place the landslide body 6 model above, and then move the longitudinal faults and the fracture simulation structure 20 on both sides of the fracture in opposite directions to tear the landslide body 6 model, so as to realize the simulation of longitudinal fracture at a specific position.

[0051] Simulating transverse fault: The second telescopic rod 18 of the transverse fault simulation structure 17 cannot move up and down. The longitudinal fault and the fracture simulation structure 20 at the bottom can be adjusted to make the position of the bearing plate 12 reach the appropriate height, and then the telescopic length of the second telescopic rod 18 is adjusted to make the landslide body 6 model have a transverse dislocation, so as to realize the simulation of transverse fault at a specific position.

[0052] In actual situations, there is almost no fracture in the horizontal direction, so the transverse fracture is not simulated.

[0053] The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose is to enable those who are familiar with this technology to understand the content of the present invention and implement it. It cannot be used to limit the protection scope of the present invention. Any equivalent changes or modifications made according to the spirit and essence of the present invention should be covered within the protection scope of the present invention.

Claims

1. Landslide indoor physical simulation device for fault and fracture scenarios, characterized in that It includes a landslide simulation area and a rainfall simulation area; The landslide simulation area includes a hollow cavity (10). Above the inner bottom plate (11) of the cavity (10), there are a number of bearing plates (12). Between two adjacent bearing plates (12), there is a telescopic connection structure (13). On the bottom plate (11), there are two parallel gear tracks (14); On the gear tracks (14), there are a number of gears (23) arranged in two rows and matching with the gear tracks. Between four gears (23) in two adjacent rows, there is a base (22). On the base (22), there is a first telescopic rod (21). The output end of the first telescopic rod (21) is connected to the bearing plate (12); The first telescopic rod (21), the base (22) and the four gears (23) form a longitudinal fault and fracture simulation structure (20); On one side of the inner side plate (15) of the cavity (10), there are a number of first side plates (16). Between the side plate (15) and each first side plate (16), there is a transverse fault simulation structure (17); The rainfall simulation area includes a water supply tank (1), a water pump (2), a water delivery pipeline (3) and a spraying structure (4). The spraying structure (4) is arranged inside the top of the cavity (10); A landslide body (6) is placed on the bearing plate (12).

2. The landslide indoor physical simulation device for fault and fracture scenarios according to claim 1, characterized in that, At the connection between the bearing plate (12) and the first side plate (16), there is a telescopic connection structure (13).

3. The landslide indoor physical simulation device for fault and fracture scenarios according to claim 1, wherein The transverse fault simulation structure (17) includes a second telescopic rod (18). One end of the second telescopic rod (18) is connected to the side plate (15), and the other end is connected to the first side plate (16).

4. The landslide indoor physical simulation device for fault and fracture scenarios according to claim 1, characterized in that, The spraying structure (4) includes a number of spray heads (5). The spray heads (5) are arranged in a single row at equal intervals.

5. The landslide indoor physical simulation device for fault and fracture scenarios according to claim 1, characterized in that, Both the first telescopic rod (21) and the second telescopic rod (18) are electric telescopic rods, and are powered by the motors at their bottoms.

6. The landslide indoor physical simulation device for fault and fracture scenarios according to claim 1, characterized in that, Except for the side plate (15), the other side plates of the landslide simulation area are made of transparent material panels.

7. The landslide indoor physical simulation device for fault and fracture scenarios according to claim 1, characterized in that, There is a certain gap between the bearing plate (12) and the side plate end far from the first side plate (16).

8. The landslide indoor physical simulation device for fault and fracture scenarios according to claim 1, characterized in that, Inside the landslide simulation area, there are a camera (7), a laser rangefinder (8) and a soil internal sensor (9) communicatively connected to a PLC controller. The camera (7) is used to record the state of the landslide body (6). The laser rangefinder (8) is used to measure the displacement of the same point during landslide occurrence. The soil internal sensor (9) is used to measure the water content parameter, stress parameter and matrix suction parameter during the landslide occurrence process.

9. The landslide indoor physical simulation device for fault and fracture scenarios according to claim 8, characterized in that, The camera (7) is arranged on the side plate inside the cavity (10) far from the first side plate (16). The laser rangefinder (8) is arranged on the side plate inside the cavity (10) far from the first side plate (16).

10. The landslide indoor physical simulation device for fault and fracture scenarios according to claim 9, characterized in that, The soil internal sensor (9) is arranged inside the landslide body (6).

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