Indoor model test device for instability of high-water-level artificial accumulation body

Abstract

The invention relates to the technical field of artificial accumulation body safety protection, in particular to a high-water-level artificial accumulation body instability indoor model test device which comprises a model box, a supporting frame is arranged on the right side of the model box, a rectangular water tank is installed on the supporting frame, and the water tank and the model box are in through connection. Prefabricated tempered glass is arranged at the joint of the water tank and the model box, a plurality of round holes are formed in the prefabricated tempered glass, a water tank water inlet pipe and a water tank drainage pipe are installed on the water tank, a water tank water inlet valve and a pressure pump are sequentially installed on the water tank water inlet pipe from the water inlet end to the drainage end, and a model box drainage pipe is installed at the bottom of the model box. A model box drainage valve is mounted on the model box drainage pipe, an artificial accumulation body is placed in the model box, and a loading mechanism is arranged at the top of the artificial accumulation body; the problems that extreme conditions, especially a high-water-level seepage environment formed by periodic rainfall, cannot be simulated in an existing field test, and an indoor controllable test device is lacked are solved.

Description

Technical Field

[0001] The invention relates to the technical field of safety protection of artificial piles, in particular to an indoor model test device for instability of high-water-level artificial piles. Background Art

[0002] Artificial accumulations are widespread across various engineering and construction sectors, such as slag heaps, spoil dumps, and construction waste mounds. Due to their large size, loose internal structure, and sensitivity to environmental disturbances, particularly rainfall and earthquakes, they represent a potential, high-risk source of debris flows. Research on these accumulations is urgently needed to prevent disasters, protect life and property, maintain ecological and environmental health, and promote sustainable resource use and responsible development. This multidisciplinary research possesses both strong theoretical value and practical urgency. As global engineering activities and resource development continue to grow, studying these "human-created landslide / debris flow hazards" will become increasingly important.

[0003] Dangerous artificial deposits, such as slag heaps, are typically large and high. Under the influence of periodic rainfall over many years, these deposits can form high water levels, posing a significant risk of instability. Field tests, however, lack the necessary experimental conditions and are unable to control the required extreme test conditions, making it impossible to achieve the desired research objectives. Therefore, it is necessary to develop an indoor model test device to investigate the instability of artificial deposits at high water levels. Summary of the Invention

[0004] In order to solve the problems that existing field tests cannot simulate extreme conditions, especially the high water level seepage environment formed by periodic rainfall, and lack of indoor controllable test equipment, the present invention provides an indoor model test device for the instability of high water level artificial accumulation bodies.

[0005] The present invention is achieved by adopting the following technical solutions: An indoor model test device for instability of an artificial accumulation body at a high water level, comprising a rectangular model box, a support frame provided on the right side of the model box, a rectangular water tank installed on the support frame, the water tank and the model box being connected through, and a prefabricated tempered glass provided at the connection between the water tank and the model box, the prefabricated tempered glass being provided with a plurality of circular holes, a water tank inlet pipe and a water tank drain pipe provided on the water tank, a water tank inlet valve and a pressure pump being sequentially installed on the water tank inlet pipe from the water inlet end to the drain end, a model box drain pipe provided at the bottom of the model box, a model box drain valve provided on the model box drain pipe, an artificial accumulation body placed inside the model box, and a loading mechanism provided on the top of the artificial accumulation body; The loading mechanism includes a reaction frame, the upper end of the reaction frame is fixed to the inner top wall of the model box, the lower end of the reaction frame is fixed with a digital jack, the lower end of the digital jack is provided with a horizontal pad, and the lower surface of the horizontal pad is in contact with the top of the artificial pile.

[0006] Furthermore, the model box includes a rectangular steel frame, on which a top plate, a bottom plate and four side plates are mounted, and the four side plates are all made of transparent tempered glass.

[0007] Furthermore, the model box is provided with square grids on the side panels arranged along the length direction of the model box.

[0008] Furthermore, the length and width of the square grid are both 10 cm.

[0009] Furthermore, the water tank is made of transparent tempered glass.

[0010] Furthermore, a layer of permeable geotextile is attached to the prefabricated tempered glass.

[0011] Furthermore, the model box has a length of 3m, a width of 1m and a height of 1.5m.

[0012] Furthermore, the water tank has a length of 1 m, a width of 0.5 m, and a height of 0.7 m.

[0013] Furthermore, a water tank drain valve is installed on the water tank drain pipe.

[0014] The present invention provides an indoor model test device for the instability of high-water-level artificial accumulations. The device is a multifunctional test system that integrates high-water-level seepage simulation, load control, deformation observation, and drainage management. It not only solves the problem that traditional field tests cannot control extreme conditions, but also has significant advantages such as high visualization, strong repeatability, and accurate data collection. It is suitable for multiple fields such as geological disaster prevention and control, mine safety assessment, and urban solid waste management, and has broad prospects for scientific research and engineering applications. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0016] Figure 2 It is a schematic diagram of the planar structure of the present invention.

[0017] Figure 3 It is a structural schematic diagram of the prefabricated tempered glass in the present invention.

[0018] Figure 4 It is a side view of the water tank of the present invention.

[0019] In the figure: 1. Model box; 2. Support frame; 3. Water tank; 4. Prefabricated tempered glass; 5. Water tank inlet pipe; 6. Water tank drain pipe; 7. Water tank inlet valve; 8. Pressure pump; 9. Model box drain pipe; 10. Model box drain valve; 11. Artificial pile; 12. Reaction frame; 13. Digital jack; 14. Horizontal pad; 15. Square grid; 16. Water tank drain valve. DETAILED DESCRIPTION

[0020] An indoor model test device for the instability of artificial accumulation at high water level, as shown in the attached Figure 1 ~Attached Figure 4 As shown, it includes a rectangular model box 1, a support frame 2 is provided on the right side of the model box 1, a rectangular water tank 3 is installed on the support frame 2, the water tank 3 and the model box 1 are connected, and a prefabricated tempered glass 4 is provided at the connection between the water tank 3 and the model box 1, and a plurality of circular holes are opened on the prefabricated tempered glass 4, a water tank inlet pipe 5 and a water tank drain pipe 6 are installed on the water tank 3, a water tank inlet valve 7 and a pressure pump 8 are installed on the water tank inlet pipe 5 in sequence from the water inlet end to the drain end, a model box drain pipe 9 is installed at the bottom of the model box 1, and a model box drain valve 10 is installed on the model box drain pipe 9, an artificial accumulation body 11 is placed inside the model box 1, and a loading mechanism is provided on the top of the artificial accumulation body 11; The loading mechanism includes a reaction frame 12, the upper end of the reaction frame 12 is fixed to the inner top wall of the model box 1, the lower end of the reaction frame 12 is fixed with a digital jack 13, the lower end of the digital jack 13 is provided with a horizontal pad 14, and the lower surface of the horizontal pad 14 is in contact with the top of the artificial pile 11.

[0021] In the present invention, the water tank 3 is placed on the top of the support frame 2 in order to lift the water tank 3 to the top height of the artificial accumulation body 11, so as to simulate the high water level infiltration from the top of the artificial accumulation body 11, such as after a long period of rainfall, the extreme conditions of high water level formed by periodic rainfall are reproduced; the water tank inlet pipe 5, the water tank inlet valve 7 and the pressure pump 8 play the role of controlling the water inlet volume. After the water level reaches the specified height, the pressure pump 8 and the water tank inlet valve 7 are closed. When the water level drops by 3cm-5cm, the pressure pump 8 and the water tank inlet valve 7 are opened to replenish water to restore the water level height, so as to maintain the water level height at a predetermined height during the test, thereby maintaining a steady high water level seepage and accurately simulating long-term rainfall conditions; the digital jack 13 uses the supporting effect of the reaction frame 12 to apply a load to the artificial accumulation body 11, thereby pressurizing the top of the artificial accumulation body 11, and the horizontal pad 14 plays the role of uniformly transferring the load.

[0022] The model box 1 comprises a rectangular steel frame, on which a top plate, a bottom plate and four side plates are mounted, and the four side plates are all made of transparent tempered glass.

[0023] The model box 1 is provided with square grids 15 on the side panels arranged along the length direction thereof.

[0024] The length and width of the square grid 15 are both 10 cm.

[0025] In the present invention, the model box 1 accommodates the artificial pile 11 and provides a deformation observation surface; the side panels made of transparent tempered glass allow direct observation of the deformation of the artificial pile 11; when a load is applied to the high-water-level artificial pile 11, due to the high water level inside the artificial pile 11, the artificial pile 11 is prone to slope deformation. The square grid 15 not only facilitates water level observation, but also can quantify slope deformation displacement and provide accurate deformation data; the model box drain pipe 9 serves to discharge seepage water.

[0026] The water tank 3 is made of transparent tempered glass.

[0027] A layer of permeable geotextile is attached to the prefabricated tempered glass 4 .

[0028] A circular hole is opened on the prefabricated tempered glass 4 to connect the water tank 3 and the model box 1, and a permeable geotextile is attached to achieve the effect of water permeability but soil impermeability, which can prevent particles of the artificial deposit 11 from entering the water tank 3 and reduce the mass loss of the artificial deposit 11.

[0029] The model box 1 has a length of 3 m, a width of 1 m and a height of 1.5 m.

[0030] The water tank 3 has a length of 1 m, a width of 0.5 m and a height of 0.7 m.

[0031] A water tank drain valve 16 is installed on the water tank drain pipe 6 .

[0032] During the indoor simulation experiment, the test preparation is first carried out: an artificial pile 11 is filled in the model box 1, and the density thereof simulates that of an actual slag pile; then a high water level simulation is carried out: the water tank inlet pipe 5 is connected to the water source, and the water tank drain valve 16 is checked to be closed. The pressure pump 8 and the water tank inlet valve 7 are opened to fill the water tank 3 with water, so that the water flows into the model box 1 through the prefabricated tempered glass 4 with circular holes. When the water level reaches a predetermined height, the water tank inlet valve 7 is closed; then the load is applied: the digital display jack 13 is started, and the artificial pile 11 is uniformly pressurized through the horizontal pad 14. The deformation of the artificial pile 11 in the square grid 15 is observed in real time and the deformation is corrected. Make a record. It should be noted that when the water level in the model box 1 drops by 3cm-5cm, it is necessary to reopen the pressure pump 8 and the water tank inlet valve 7 to replenish water, and circulate to maintain the water level stable; then conduct instability observation: when the deformation data reaches the preset value or an obvious slip surface appears on the artificial accumulation body 11, it is judged to be unstable. At this time, the load is maintained, and the model box drain valve 10 is opened to collect the seepage water and record it; finally, relevant data analysis is performed, thereby completing the use of this device; it overcomes the problems of existing field tests that cannot simulate extreme conditions, especially the high water level seepage environment formed by periodic rainfall, and the lack of indoor controllable test equipment.

[0033] In the description of the present invention, it should be understood that the indicated orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0034] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. An indoor model test device for instability of artificial accumulation at high water level, characterized by: The invention comprises a rectangular model box (1), a support frame (2) is provided on the right side of the model box (1), a rectangular water tank (3) is installed on the support frame (2), the water tank (3) and the model box (1) are connected to each other, and a prefabricated tempered glass (4) is provided at the connection between the water tank (3) and the model box (1), and a plurality of circular holes are provided on the prefabricated tempered glass (4), a water tank inlet pipe (5) and a water tank drain pipe (6) are installed on the water tank (3), a water tank inlet valve (7) and a pressure pump (8) are installed on the water tank inlet pipe (5) from the water inlet end to the drain end, a model box drain pipe (9) is installed at the bottom of the model box (1), and a model box drain valve (10) is installed on the model box drain pipe (9), an artificial accumulation body (11) is placed inside the model box (1), and a loading mechanism is provided on the top of the artificial accumulation body (11); The loading mechanism includes a reaction frame (12), the upper end of the reaction frame (12) is fixed to the inner top wall of the model box (1), the lower end of the reaction frame (12) is fixed with a digital jack (13), the lower end of the digital jack (13) is provided with a horizontal pad (14), and the lower surface of the horizontal pad (14) is in contact with the top of the artificial pile (11).

2. The indoor model test device for instability of a high-water-level artificial accumulation according to claim 1, characterized in that: The model box (1) comprises a rectangular steel frame, on which a top plate, a bottom plate and four side plates are mounted, and the four side plates are all made of transparent tempered glass.

3. The indoor model test device for instability of a high-water-level artificial accumulation according to claim 2, characterized in that: The model box (1) is provided with square grids (15) on side panels arranged along the length direction thereof.

4. The indoor model test device for instability of a high-water-level artificial accumulation according to claim 3, characterized in that: The length and width of the square grid (15) are both 10 cm.

5. The indoor model test device for instability of a high-water-level artificial accumulation according to claim 1, characterized in that: The water tank (3) is made of transparent tempered glass.

6. The indoor model test device for instability of a high-water-level artificial accumulation according to claim 1, characterized in that: A layer of permeable geotextile is attached to the prefabricated tempered glass (4).

7. The indoor model test device for instability of a high-water-level artificial accumulation according to claim 1, characterized in that: The model box (1) has a length of 3 m, a width of 1 m, and a height of 1.5 m.

8. The indoor model test device for instability of a high-water-level artificial accumulation according to claim 1, characterized in that: The water tank (3) has a length of 1 m, a width of 0.5 m, and a height of 0.7 m.

9. The indoor model test device for instability of a high-water-level artificial accumulation according to claim 1, characterized in that: A water tank drain valve (16) is installed on the water tank drain pipe (6).

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