Rock slope indoor physical simulation device under freeze-thaw cycle

Abstract

The invention discloses an indoor physical simulation device for a rock slope under freeze-thaw cycle. The indoor physical simulation device comprises a freeze-thaw box and a slope simulation structure arranged in the freeze-thaw box, a box door is arranged on one side of the freezing and thawing box body, a temperature adjusting structure is arranged on the other side of the freezing and thawing box body, a watering plate is arranged at the top in the freezing and thawing box, and a drainage plate is arranged at the bottom in the freezing and thawing box; the slope simulation structure comprises a slope table, a telescopic mechanism, a model box and a hinge support; the model box is hinged to the hinged base, and the telescopic mechanism stretches out and draws back to drive the model box to ascend and descend to form an inclination angle. A rock sample is arranged in the model box, and a displacement sensor is arranged at the upper end of the rock sample in the model box. The rock slope under the freezing and thawing cycle condition is simulated through the slope simulation structure with the adjustable slope angle, the research efficiency is greatly improved, and the scientific research cost is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of rock slopes under freeze-thaw conditions, and in particular to an indoor physical simulation device for rock slopes under freeze-thaw cycles. Background Art

[0002] The mines in the high-altitude and cold regions of northwest my country have rich mineralization environments. Due to the large temperature difference between day and night and the complex geological conditions, the slopes in the mining areas often develop structural surfaces of the rock mass under freeze-thaw conditions, the rock mass strength decreases, and the safety and stability coefficient of the rock slope decreases, eventually leading to geological disasters such as landslides and collapses.

[0003] In the prior art, there are also some studies on freeze-thaw tests on rock masses. For example, the Chinese invention patent with publication number CN118583698A discloses a rock freeze-thaw cycle test system, which mainly restores the rock freeze-thaw scene and does not conduct slope-related monitoring. For another example, the Chinese invention patent with publication number CN106855568A discloses a model test device for the influence of freeze-thaw on the deformation of bedding rock slopes. The device is designed with a U-shaped slope platform, a jack, a buffer platform, a heating device, an electromagnet, a measuring head, a T-slot and other structures. The device has the characteristics of simple structure, easy operation, and adjustable slope. However, the device of the invention lacks tests on rock mass freeze-thaw environments, making it difficult to achieve a better slope environment simulation test effect.

[0004] In previous research, indoor simulation devices for frozen-thaw rock slopes often used fixed slopes. The devices were applicable to a single situation. For different slope angles, freeze-thaw changes, etc., a specific rock slope was often simulated with a specific device. In addition, the transportation and loading and unloading of the devices were complicated, resulting in a waste of time, manpower and money. Summary of the Invention

[0005] In order to overcome the above-mentioned problems, the purpose of the present invention is to provide an indoor physical simulation device for rock slopes under freeze-thaw cycles. The rock slopes under freeze-thaw cycle conditions are simulated through a slope simulation structure with an adjustable slope angle, which greatly improves research efficiency and reduces scientific research costs.

[0006] In order to achieve the above objectives, the technical solution adopted by the present invention is: an indoor physical simulation device for rock slopes under freeze-thaw cycles, comprising a freeze-thaw chamber and a slope simulation structure arranged in the freeze-thaw chamber;

[0007] A door is provided on one side of the freeze-thaw box body, and a temperature regulating structure is provided on the other side. The temperature regulating structure includes a temperature sensor and a temperature controller. The temperature controller regulates the increase and decrease of the temperature in the freeze-thaw box according to the temperature changes in the freeze-thaw box monitored by the temperature sensor;

[0008] A sprinkler plate is provided on the top of the freeze-thaw box to simulate a rainfall environment, and a drain plate is provided on the bottom of the freeze-thaw box to drain water from the bottom;

[0009] The slope simulation structure includes a slope platform, a telescopic mechanism, a model box and an articulated support;

[0010] The ramp is arranged on the drainage board, and the ramp is detachable on the drainage board. The base of the telescopic mechanism is arranged on one end of the ramp, and the bottom of the hinged support is arranged on the other end of the ramp. The output end of the telescopic mechanism conflicts with one side of the bottom of the model box, and the other side of the bottom of the model box is fixedly connected to the top end of the hinged support. The model box is hingedly connected to the hinged base, and the telescopic mechanism drives the model box to rise and fall to form an inclination angle through the telescopic movement, which is used to simulate slopes of different angles.

[0011] A rock sample is arranged in the model box, and a displacement sensor is arranged at the upper end of the rock sample in the model box for monitoring the deformation of the rock sample.

[0012] Preferably, the sprinkler plate is provided with a plurality of sprinkler holes to facilitate simulation of a rainfall environment.

[0013] Preferably, a drain outlet is provided at one end of the bottom of the drain plate, and the drain outlet is provided with a drain valve, which can control the drainage volume of the drain outlet.

[0014] Preferably, one side of the freeze-thaw box body is made of visual glass material, and a camera is provided outside the freeze-thaw box on the glass side to record the working condition and working process of the slope simulation structure. By uploading the data communication between the displacement sensor and the camera to the PC, the effect of data and image synchronization can be achieved.

[0015] Preferably, a buffer platform is provided at the other end of the top of the hinged support, and a drainage pipe connected to the model box is provided on the buffer platform to improve drainage efficiency.

[0016] Preferably, a drainage trough is provided on the slope to facilitate drainage.

[0017] Preferably, a rotatable support plate with a slide rail is provided between the telescopic mechanism and the model box. The top of the rotatable support plate is fixedly connected to the model box and is used to support the model box. The extension and retraction of the telescopic mechanism drives the rotatable support plate to rise and fall to form an inclined angle, thereby driving the model box to rise and fall to form an inclined angle to simulate slopes of different angles.

[0018] Preferably, the telescopic mechanism is a pneumatic hydraulic jack, and the pneumatic hydraulic jack includes a jack base and a jack ejection end.

[0019] Preferably, the pneumatic hydraulic jacks achieve synchronous lifting of multiple hydraulic jacks through gas transmission.

[0020] Preferably, a plurality of pulleys are provided on the outer bottom of the freeze-thaw box to facilitate the movement of the freeze-thaw box and improve the transportation efficiency.

[0021] The beneficial effects of the present invention are as follows: the model box is hingedly connected to the hinged support, and the telescopic mechanism is used to drive the lifting and lowering of the model box to realize the simulation of various freeze-thaw conditions of multi-angle rock slopes, thereby realizing a more convenient and intuitive simulation of freeze-thaw rock slopes; the deformation of the rock slope under continuous freeze-thaw cycles is monitored by a displacement sensor, and the freeze-thaw environment is combined with the slope simulation structure, which can greatly improve research efficiency and reduce scientific research costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 Schematic diagram of the three-dimensional structure of this embodiment;

[0023] Figure 2 This is a schematic diagram of the main structure of this embodiment;

[0024] Figure 3 Schematic diagram of the structure of the model box of this embodiment;

[0025] Figure 4 Schematic diagram of the structure of the ramp in this embodiment.

[0026] In the figure: 1. Freeze-thaw chamber; 2. Chamber door; 3. Temperature regulating structure; 4. Drain board; 5. Drain outlet; 6. Drain valve; 7. Camera; 8. Sprinkler board; 9. Sprinkler hole; 10. Pulley; 11. Ramp; 12. Telescopic mechanism; 13. Rock sample; 14. Articulated support; 15. Buffer platform; 16. Drain pipe; 17. Drain trough; 18. Rotatable support plate; 19. Model box; 20. Displacement sensor. DETAILED DESCRIPTION

[0027] The preferred embodiments of the present invention are described in detail below with reference to 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 a clearer and more precise definition of the protection scope of the present invention.

[0028] See also Figure 1-Figure 4 , this embodiment discloses an indoor physical simulation device for rock slopes under freeze-thaw cycles, comprising a freeze-thaw box 1 and a slope simulation structure arranged in the freeze-thaw box;

[0029] A door 2 is provided on one side of the freeze-thaw box 1 for easy loading and unloading, and a temperature regulating structure 3 is provided on the other side. The temperature regulating structure 3 includes a temperature sensor and a temperature controller. The temperature controller regulates the temperature in the freeze-thaw box 1 according to the temperature changes in the freeze-thaw box 1 monitored by the temperature sensor, thereby regulating the increase and decrease of the temperature in the freeze-thaw box 1, or maintaining the temperature for a certain period of time;

[0030] A sprinkler plate 8 is provided on the top of the freeze-thaw box 1 to simulate a rainfall environment, and a drain plate 4 is provided on the bottom of the freeze-thaw box 1 to drain water from the bottom;

[0031] The slope simulation structure includes a slope platform 11, a telescopic mechanism 12, a model box 19 and a hinged support 14;

[0032] The slope 11 is detachably arranged on the drainage board 4, the base of the telescopic mechanism 12 is arranged at one end of the slope 11, and the bottom of the hinged support 14 is arranged at the other end of the slope 11. The output end of the telescopic mechanism 12 conflicts with one side of the bottom of the model box 19, and the other side of the bottom of the model box 19 is fixedly connected to the top end of the hinged support 14. The model box 19 is hingedly connected to the hinged base 14, and the telescopic mechanism 12 is used to drive the model box 19 to rise and fall to form an inclination angle, which is used to simulate slopes of different angles.

[0033] The body of the model box 19 can be made of transparent material for easy observation. A rock sample 13 is arranged in the model box 19 . A displacement sensor 20 is arranged at the upper end of the rock sample 13 in the model box 19 for monitoring the deformation of the rock sample 13 .

[0034] In one embodiment, the sprinkler plate 8 is provided with a plurality of sprinkler holes 9 to facilitate simulating a rainfall environment.

[0035] In one embodiment, a drain port 5 is provided at one end of the bottom of the drain plate 4 , and a drain valve 6 is provided at the drain port 5 . The drain valve 6 can control the drainage volume of the drain port 5 .

[0036] In one embodiment, one side of the freeze-thaw box 1 is made of a visual glass material, and a camera 7 is provided outside the freeze-thaw box 1 on the glass side to record the working condition and working process of the slope simulation structure. By uploading the data communication between the displacement sensor 20 and the camera 7 to the PC, the effect of data and image synchronization can be achieved.

[0037] In one embodiment, a buffer platform 15 is provided at the other end of the top of the hinged support 14 , and a drainage pipe 16 connected to the model box 19 is provided on the buffer platform 15 to improve drainage efficiency.

[0038] In one embodiment, a drainage trough 17 is provided on the ramp 11 , and the drainage trough 17 collects the water discharged from the drainage pipe 16 into the drainage board 4 at the bottom.

[0039] In one embodiment, a rotatable support plate 18 with a slide rail is provided between the telescopic mechanism 12 and the model box 19. The top of the rotatable support plate 18 is fixedly connected to the model box 19 for supporting the model box 19. The telescopic mechanism 12 is extended and retracted to drive the rotatable support plate 18 to rise and fall to form an inclined angle, thereby driving the model box 19 to rise and fall to form an inclined angle, so as to simulate slopes of different angles.

[0040] In one embodiment, the telescopic mechanism 12 is a pneumatic hydraulic jack, which includes a jack base and a jack ejection end.

[0041] In one embodiment, the pneumatic hydraulic jacks achieve synchronous lifting of multiple hydraulic jacks through gas transmission.

[0042] In one embodiment, a plurality of pulleys 10 are provided on the outer bottom of the freeze-thaw box 1 to facilitate the movement of the freeze-thaw box and improve the transportation efficiency.

[0043] The above embodiments are only for illustrating the technical concept and features of the present invention. Its purpose is to enable people familiar with this technology to understand the content of the present invention and implement it. It cannot be used to limit the scope of protection of the present invention. Any equivalent changes or modifications made according to the spirit of the present invention should be included in the scope of protection of the present invention.

Claims

1. An indoor physical simulation device for rock slopes under freeze-thaw cycles, characterized in that: It includes a freeze-thaw box and a slope simulation structure arranged in the freeze-thaw box; A door is provided on one side of the freeze-thaw box body, and a temperature regulating structure is provided on the other side. The temperature regulating structure includes a temperature sensor and a temperature controller; A sprinkler plate is provided on the top of the freeze-thaw box, and a drain plate is provided on the bottom of the freeze-thaw box; The slope simulation structure includes a slope platform, a telescopic mechanism, a model box and an articulated support; The ramp is arranged on the drainage board, the base of the telescopic mechanism is arranged on one end of the ramp, the bottom of the hinged support is arranged on the other end of the ramp, the output end of the telescopic mechanism is in conflict with one side of the bottom of the model box, the other side of the bottom of the model box is fixedly connected to the top end of the hinged support, the model box is hingedly connected to the hinged base, and the telescopic mechanism drives the model box to rise and fall to form an inclined angle; A rock sample is arranged in the model box, and a displacement sensor is arranged at the upper end of the rock sample in the model box.

2. The indoor physical simulation device for rock slopes under freeze-thaw cycles according to claim 1, characterized in that: The watering plate is provided with a plurality of watering holes.

3. The indoor physical simulation device for rock slopes under freeze-thaw cycles according to claim 1, characterized in that: A drain outlet is provided at one end of the bottom of the drain plate, and a drain valve is provided at the drain outlet.

4. The indoor physical simulation device for rock slopes under freeze-thaw cycles according to claim 1, characterized in that: One side of the freeze-thaw box body is made of visible glass material, and a camera is provided outside the freeze-thaw box on the glass material side.

5. The indoor physical simulation device for rock slopes under freeze-thaw cycles according to claim 1, characterized in that: A buffer platform is provided at the other end of the top of the hinged support, and a drainage pipe connected to the model box is provided on the buffer platform.

6. The indoor physical simulation device for rock slopes under freeze-thaw cycles according to claim 5, characterized in that: A drainage trough is provided on the slope.

7. The indoor physical simulation device for rock slopes under freeze-thaw cycles according to claim 1, characterized in that: A rotatable support plate with a slide rail is provided between the telescopic mechanism and the model box. The top of the rotatable support plate is fixedly connected to the model box and is used to support the model box. The telescopic mechanism's telescopic movement drives the rotatable support plate to rise and fall to form an inclined angle, thereby driving the model box to rise and fall to form an inclined angle to simulate slopes of different angles.

8. The indoor physical simulation device for rock slopes under freeze-thaw cycles according to claim 1, characterized in that: The telescopic mechanism is a pneumatic hydraulic jack, which includes a jack base and a jack ejection end.

9. The indoor physical simulation device for rock slopes under freeze-thaw cycles according to claim 8, characterized in that: The pneumatic hydraulic jacks achieve synchronous lifting of multiple hydraulic jacks through gas transmission.

10. The indoor physical simulation device for rock slopes under freeze-thaw cycles according to claim 1, characterized in that: A plurality of pulleys are provided on the outer bottom of the freeze-thaw box.

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