Landslide starting process indoor simulation test device

Abstract

The utility model provides an indoor simulation test device for a landslide starting process, which comprises a support beam rotatably mounted at the upper part of a centrifugal machine, a sleeve frame fixedly sleeved at one end of the support beam, a toughened glass box placed in the sleeve frame, an upper cover plate arranged at the top of the toughened glass box, and a driving assembly and a camera assembly arranged at the top of the upper cover plate, the driving assembly is matched with the camera shooting assembly. The utility model has the beneficial effects that the test system mainly comprises four parts, namely a centrifugal machine system, a circulating freezing and thawing system, a rainfall system and a measuring device, physical and mechanical parameters of a landslide starting process under the action of freezing and thawing, rainfall and gravity aging deformation are utilized, and a three-dimensional physical model test is carried out on the whole process of multiple collapse and slip disasters; according to the moraine soil landslide simulation device, data of moraine soil during soil layer landslide simulation can be conveniently collected, the sliding state of the moraine soil simulation soil layer in the tempered glass box can be visually observed, rich practical experience is achieved, and data needed by a project can be obtained.

Description

Technical Field

[0001] The utility model embodiment relates to the technical field of landslide start-up simulation, in particular to an indoor simulation test device for a landslide start-up process. Background Art

[0002] Under certain topographic and geological conditions, due to the influence of various natural or man-made factors that destroy the mechanical balance, the unstable soil (rock) on the hillside slides slowly and intermittently along a weak surface (belt) inside the hillside under the action of gravity. This deformation phenomenon is called a landslide, which refers to a natural disaster phenomenon in which a large amount of soil and rocks on the surface slope slide downward as a whole. Horizontal and longitudinal radial cracks appear at the front edge of the landslide. The front edge soil body bulges. The cracks at the rear edge of the sliding body lengthen and widen rapidly, and new cracks continue to appear. The rear of the sliding body quickly moves downward, and the surrounding rock and soil bodies become loose, small collapses occur, and the sliding zone rock and soil bodies make noises due to friction and displacement, and hot or cold air emerges from the cracks.

[0003] There is much experience in indoor landslide start-up tests, but most of this experience is written experience, lacking actual simulation experience such as three-dimensional simulation, and unable to effectively obtain various data in the landslide process, so there are deficiencies. Utility Model Content

[0004] Therefore, in view of the above problems, the utility model proposes an indoor simulation test device for landslide initiation process which can effectively obtain various data in the landslide process.

[0005] In order to solve the above technical problems, the solution adopted by the utility model is:

[0006] A centrifuge, wherein a support beam is rotatably mounted on the upper portion of the centrifuge, a sleeve frame is fixedly sleeved on one end of the support beam, and a counterweight is fixedly sleeved on the other end of the centrifuge;

[0007] A tempered glass box is placed in the frame, an upper cover is provided on the top of the tempered glass box, a driving assembly and a camera assembly are provided on the top of the upper cover, the driving assembly is coordinated with the camera assembly, and a heat exchange rainfall device is provided on the upper part of the upper cover.

[0008] A further improvement is that a mounting groove for placing the tempered glass box, the upper cover plate and the heat exchange rainfall device is provided at the bottom of the sleeve frame, and a circulating freeze-thaw device is fixedly installed on the top of the sleeve frame, and the circulating freeze-thaw device is connected to the interior of the tempered glass box.

[0009] A further improvement is that a moraine simulated soil layer is arranged in the tempered glass box, and a multi-probe ground temperature and humidity sensor is inserted and placed in the moraine simulated soil layer.

[0010] A further improvement is that the side walls of the multi-probe ground temperature and humidity sensor are sequentially provided with CT and magnetic resonance sampling points, soil pressure sensors, volume water sensors and pore water pressure sensors.

[0011] A further improvement is that the upper cover is fixedly covered on the top of the tempered glass box, a motor slot is provided on one side of the upper portion of the upper cover, a rectangular slot is provided on the upper portion of the upper cover, and the rectangular slot is connected to the motor slot.

[0012] A further improvement is that a sliding groove is provided on the side wall of the rectangular groove.

[0013] Further improvement is: the driving assembly includes a driving motor and a sliding block, the driving motor is fixedly installed in the motor slot, the front end of the driving motor is fixedly connected with a screw rod, the screw rod extends forward and is rotatably installed in the rectangular slot, the sliding block is slidably arranged in the rectangular slot, the sliding block is threadedly sleeved with the screw rod, both sides of the sliding block are fixedly connected with sliders, and the sliders are slidably connected to the sliding slot.

[0014] A further improvement is that the camera assembly includes a horizontal plate and a high-speed camera, the top of the horizontal plate is fixedly connected to the bottom of the sliding block, the horizontal plate is arranged below the upper cover plate, and there are multiple high-speed cameras located at the bottom of the horizontal plate and fixedly connected at equal distances, and the high-speed cameras are arranged at an angle.

[0015] A further improvement is that a plurality of rain holes are provided on the upper portion of the upper cover plate.

[0016] A further improvement is that the heat exchange air outlet in the heat exchange rainfall device is connected to the tempered glass box through a rectangular groove, and the rainfall port in the heat exchange rainfall device is connected to the rainfall hole.

[0017] By adopting the above technical solution, the beneficial effects of the utility model are:

[0018] 1. The indoor start-up simulation test is mainly completed on the indoor three-dimensional physical centrifuge test device of the landslide start-up process. The test system mainly includes four parts: centrifuge system, cyclic freeze-thaw system, rainfall system, and measuring device. During the test, the focus is on obtaining the multi-scale structural deformation and destruction characteristics of moraine soil at different depths during the landslide start-up process, and using the physical and mechanical parameters of the landslide start-up process under the action of freeze-thaw, rainfall and gravity time-dependent deformation. Through multiple three-dimensional physical model tests of the entire process of landslide disasters, it is not only possible to conveniently collect data on the landslide of the moraine soil simulation layer, but also to intuitively observe the sliding state of the moraine soil simulation layer inside the tempered glass box. With relatively rich practical experience, the data required for the project can be obtained.

[0019] 2. The sliding block carries a high-speed camera to quickly capture the dynamics of the simulated moraine soil landslide, which is convenient for later teaching. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of a centrifuge according to an embodiment of the utility model.

[0021] Figure 2 It is a structural schematic diagram of a sleeve frame according to an embodiment of the utility model.

[0022] Figure 3 It is a structural schematic diagram of a tempered glass box according to an embodiment of the utility model.

[0023] Figure 4 It is a structural schematic diagram of the upper cover plate of an embodiment of the utility model.

[0024] Figure 5 It is a structural schematic diagram of a sliding block in an embodiment of the utility model.

[0025] Figure 6 It is a structural schematic diagram of a moraine simulated soil layer in an embodiment of the utility model.

[0026] Figure 7 It is a schematic diagram of the structure of a multi-probe ground temperature and humidity sensor according to an embodiment of the utility model.

[0027] Explanation of the reference numerals: 1. Centrifuge; 2. Support beam; 3. Counterweight; 4. Sleeve; 5. Mounting slot; 6. Tempered glass box; 7. Upper cover; 8. Heat exchange rainfall device; 9. Circulation freeze-thaw device; 10. Motor slot; 11. Drive motor; 12. Rectangular slot; 13. Screw rod; 14. Slide slot; 15. Sliding block; 16. Rainfall hole; 17. Sliding block; 18. Cross plate; 19. High-speed camera; 20. Moraine soil simulation layer; 21. Multi-probe ground temperature and humidity sensor; 22. CT and magnetic resonance sampling points; 23. Soil force sensor; 24. Volume water sensor; 25. Pore water pressure sensor. DETAILED DESCRIPTION

[0028] The utility model is now further described in conjunction with the accompanying drawings and specific embodiments.

[0029] refer to Figure 1-Figure 7 As shown, the embodiment of the utility model discloses an indoor simulation test device for the landslide initiation process, which includes a centrifuge 1, a tempered glass box 6, a driving assembly and a camera assembly.

[0030] A centrifuge 1, wherein a support beam 2 is rotatably mounted on the upper portion of the centrifuge 1, a sleeve frame 4 is fixedly sleeved on one end of the support beam 2, and a counterweight 3 is fixedly sleeved on the other end of the centrifuge 1, and the counterweight 3 can balance the centrifugal force when the sleeve frame 4 rotates;

[0031] A tempered glass box 6 is placed in the sleeve frame 4. The tempered glass box 6 is made of tempered glass, which is convenient for observing the specific conditions inside the tempered glass box 6. An upper cover plate 7 is arranged on the top of the tempered glass box 6. A driving component and a camera component are arranged on the top of the upper cover plate 7. The driving component and the camera component are arranged in coordination. A heat exchange rainfall device 8 is arranged on the upper part of the upper cover plate 7. The heat exchange rainfall device 8 has rainfall and air exchange functions.

[0032] refer to Figure 1-Figure 2 As shown, a mounting groove 5 for placing a tempered glass box 6, an upper cover plate 7 and a heat exchange rainfall device 8 is provided at the bottom of the sleeve frame 4, and a circulating freeze-thaw device 9 is fixedly installed on the top of the sleeve frame 4. The circulating freeze-thaw device 9 is connected to the inside of the tempered glass box 6. The circulating freeze-thaw device 9 has the functions of circulating ground circulating freeze-thaw cooling and heating cycles, thereby more realistically simulating landslides.

[0033] refer to Figure 6-Figure 7 As shown, a moraine simulation soil layer 20 is set in the tempered glass box 6. During the test, the focus is on obtaining the multi-scale structural deformation and failure characteristics of the moraine simulation soil layer 20 at different depths during the landslide initiation process. A multi-probe ground temperature and humidity sensor 21 is inserted and placed in the moraine simulation soil layer 20.

[0034] Furthermore, the side walls of the multi-probe ground temperature and humidity sensor 21 are sequentially provided with CT and magnetic resonance sampling points 22, soil pressure sensors 23, volume water sensors 24 and pore water pressure sensors 25, which use the physical and mechanical parameters {soil pressure, water pressure, temperature, sliding rate, etc.} of the landslide initiation process under the action of freeze-thaw, rainfall and gravity aging deformation.

[0035] refer to Figure 1-Figure 4 As shown, the upper cover plate 7 is fixedly covered on the top of the tempered glass box 6 , a motor slot 10 is opened on one side of the upper portion of the upper cover plate 7 , a rectangular slot 12 is opened on the upper portion of the upper cover plate 7 , and the rectangular slot 12 is connected to the motor slot 10 .

[0036] Furthermore, a sliding groove 14 is formed on the side wall of the rectangular groove 12 .

[0037] refer to Figure 4-Figure 5 As shown, the driving assembly includes a driving motor 11 and a sliding block 15. The driving motor 11 is fixedly installed in the motor slot 10. The front end of the driving motor 11 is fixedly connected with a screw rod 13. The screw rod 13 extends forward and is rotatably installed in the rectangular slot 12. The sliding block 15 is slidably set in the rectangular slot 12. The sliding block 15 and the screw rod 13 are threadedly sleeved. Both sides of the sliding block 15 are fixedly connected with sliders 17, and the sliders 17 are slidably connected to the slide slot 14.

[0038] refer to Figure 1-Figure 7As shown, the camera assembly includes a horizontal plate 18 and a high-speed camera 19. The top of the horizontal plate 18 is fixedly connected to the bottom of the sliding block 15. The horizontal plate 18 is arranged below the upper cover plate 7. A plurality of high-speed cameras 19 are fixedly connected at equal intervals at the bottom of the horizontal plate 18. The high-speed camera 19 is tilted and drives the sliding block 15 to slide in the rectangular groove 12 through the driving motor 11, thereby driving the plurality of high-speed cameras 19 to move quickly to capture the landslide dynamics of the moraine simulated soil layer 20.

[0039] refer to Figure 4 As shown, a plurality of rain holes 16 are provided on the upper portion of the upper cover plate 7 .

[0040] refer to Figure 3-Figure 4 As shown, the heat exchange vent in the heat exchange rainfall device 8 is connected to the tempered glass box 6 through the rectangular groove 12, and the rainfall port in the heat exchange rainfall device 8 is connected to the rainfall hole 16, and the connection relationship between the heat exchange rainfall device 8 and the tempered glass box 6 is explained.

[0041] The heat exchange rainfall device 8, the cycle freeze-thaw device 9, the multi-probe ground temperature and humidity sensor 21, the CT and magnetic resonance sampling point 22, the soil pressure sensor 23, the volume water sensor 24 and the pore water pressure sensor 25 are existing technologies and will not be described in detail here.

[0042] The modifications and changes made using this creation are all within the patent scope claimed by this creation, and are not limited to those disclosed in the embodiments.

Claims

1. An indoor simulation test device for landslide initiation process, characterized in that: include: A centrifuge (1), wherein a support beam (2) is rotatably mounted on the upper portion of the centrifuge (1), a sleeve frame (4) is fixedly sleeved on one end of the support beam (2), and a counterweight block (3) is fixedly sleeved on the other end of the centrifuge (1); A tempered glass box (6), the tempered glass box (6) is placed in the sleeve frame (4), the top of the tempered glass box (6) is provided with an upper cover plate (7), the top of the upper cover plate (7) is provided with a driving component and a camera component, the driving component is arranged in coordination with the camera component, and a heat exchange rainfall device (8) is provided on the upper part of the upper cover plate (7).

2. The indoor simulation test device for landslide initiation process according to claim 1 is characterized in that: The bottom of the sleeve frame (4) is provided with a mounting groove (5) for placing the tempered glass box (6), the upper cover plate (7) and the heat exchange rainfall device (8), and the top of the sleeve frame (4) is fixedly provided with a circulating freeze-thaw device (9), and the circulating freeze-thaw device (9) is connected to the interior of the tempered glass box (6).

3. The indoor simulation test device for landslide initiation process according to claim 2 is characterized in that: A moraine simulated soil layer (20) is arranged in the tempered glass box (6), and a multi-probe ground temperature and humidity sensor (21) is inserted and placed in the moraine simulated soil layer (20).

4. The indoor simulation test device for landslide initiation process according to claim 3 is characterized in that: The side wall of the multi-probe ground temperature and humidity sensor (21) is provided with CT and magnetic resonance sampling points (22), a soil pressure sensor (23), a volume water sensor (24) and a pore water pressure sensor (25) in sequence.

5. The indoor simulation test device for landslide initiation process according to claim 4 is characterized in that: The upper cover plate (7) is fixedly covered on the top of the tempered glass box (6), a motor slot (10) is provided on one side of the upper portion of the upper cover plate (7), a rectangular slot (12) is provided on the upper portion of the upper cover plate (7), and the rectangular slot (12) is connected to the motor slot (10).

6. The indoor simulation test device for landslide initiation process according to claim 5 is characterized in that: A sliding groove (14) is provided on the side wall of the rectangular groove (12).

7. The indoor simulation test device for landslide initiation process according to claim 6 is characterized by: The driving assembly comprises a driving motor (11) and a sliding block (15), wherein the driving motor (11) is fixedly installed in the motor slot (10), a screw rod (13) is fixedly connected to the front end of the driving motor (11), the screw rod (13) extends forward and is rotatably installed in the rectangular slot (12), the sliding block (15) is slidably arranged in the rectangular slot (12), the sliding block (15) and the screw rod (13) are threadedly sleeved, and sliders (17) are fixedly connected to both sides of the sliding block (15), and the sliders (17) are slidably connected to the sliding slot (14).

8. The indoor simulation test device for landslide initiation process according to claim 7 is characterized in that: The camera assembly comprises a transverse plate (18) and a high-speed camera (19); the top of the transverse plate (18) is fixedly connected to the bottom of the sliding block (15); the transverse plate (18) is arranged below the upper cover plate (7); a plurality of high-speed cameras (19) are fixedly connected at equal intervals at the bottom of the transverse plate (18); and the high-speed cameras (19) are arranged at an angle.

9. The indoor simulation test device for landslide initiation process according to claim 8 is characterized in that: A plurality of rain holes (16) are provided on the upper portion of the upper cover plate (7).

10. The indoor simulation test device for landslide initiation process according to claim 9, characterized in that: The heat exchange air outlet in the heat exchange rainfall device (8) is connected to the tempered glass box (6) through a rectangular groove (12), and the rainfall outlet in the heat exchange rainfall device (8) is connected to the rainfall hole (16).

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