Method for determining stability of dump slope under simulated extreme working condition and instability prediction device

Abstract

The invention discloses a method for determining the stability of a waste dump slope under simulated extreme working conditions and an instability prediction device, and relates to the field of geotechnical engineering.The technical scheme includes that the device comprises a box body, a carrier plate driving mechanism and a spraying mechanism, a water level detector is mounted in the box body, and a water inlet pipe is fixedly mounted at the top of one side of the box body; a water inlet pipe is fixedly installed at the bottom of one side of the box body, a water outlet pipe is fixedly installed at the bottom of one side of the box body, valves are arranged on the water inlet pipe and the water outlet pipe, the spraying mechanism is installed on one side of the box body, a plurality of spraying heads are arranged on the spraying mechanism at equal intervals, the carrier plate driving mechanism is arranged on the other side of the box body, and a carrier plate assembly is installed on the carrier plate driving mechanism. The carrier plate assembly can bear a waste dump slope model, the carrier plate driving mechanism can drive the carrier plate assembly to translate, lift and vibrate, through the overall structure arrangement, various different extreme conditions can be simulated to test the influence of the waste dump slope stability, and meanwhile, the device is convenient to clean.

Description

Technical Field

[0001] The present invention relates to the technical field of geotechnical engineering, and more specifically, to a method for determining the stability of a waste dump slope under simulated extreme working conditions and a device for predicting slope instability. Background Art

[0002] As an important facility and component of the beneficiation production constructed artificially, the waste dump slope has inherent risks since its completion, mainly reflected in the stability problem of the dam body. Affected by various factors such as terrain, phreatic line, and dam slope, there are potential risks of collapse and landslide for the dam body. In addition, the intercepting and drainage system is also easily interfered by factors such as pressure, debris flow, and dead branches, which may lead to the collapse and blockage of the system. Over time, the aging and damage of the flood drainage facilities and seepage drainage facilities also increase the risk of failure. Especially in recent years, the frequency of extreme climate has increased. Under the influence of extreme rainstorms, the flood of the waste dump slope converges in a short time, posing an environmental risk of overtopping and bursting the dam. Geological disasters are frequent in mountainous areas, which may lead to problems such as surges and blockages of the intercepting and drainage facilities. In addition, the waste dump slope in earthquake-prone areas faces potential risks of sand liquefaction and dam collapse. Therefore, in order to ensure safe production, it is very important to study the stability of the waste dump slope under extreme conditions.

[0003] As an important means of engineering science research, indoor model tests can establish a similar model based on the actual engineering background and engineering disciplines, and intuitively obtain the physical and mechanical parameters of the model under various actions, which are widely used in slope engineering, mining engineering and other fields. At present, most of the model test devices for waste dump slopes are carried out in assembled boxes. The overall firmness and sealing performance of such boxes are insufficient. Considering the need to simulate situations such as rainstorms, overtopping and earthquakes, an integrated box is required for the box to increase the firmness and sealing performance. However, the integrated box is not convenient for the construction and cleaning of the waste dump slope model. Therefore, it is necessary to design a device for predicting the instability of a waste dump slope under simulated extreme working conditions to solve the above problems. Summary of the Invention

[0004] Aiming at the deficiencies of the existing technology, the purpose of the present invention is to provide a device for predicting the instability of a waste dump slope under simulated extreme working conditions.

[0005] To achieve the above object, the present invention provides the following technical solutions: It includes a box body, a carrier plate driving mechanism, and a spraying mechanism. A water level detector is installed inside the box body. A water inlet pipe is fixedly installed at the top of one side of the box body, and a water outlet pipe is fixedly installed at the bottom of one side of the box body. Valves are provided on both the water inlet pipe and the water outlet pipe. The spraying mechanism is installed on one side of the box body. A plurality of nozzles are equidistantly arranged on the spraying mechanism. The spraying mechanism can drive the plurality of nozzles to lift and lower directly above the box body. The carrier plate driving mechanism is arranged on the other side of the box body. A carrier plate assembly is installed on the carrier plate driving mechanism. The carrier plate assembly can carry the slope model of the waste dump. The carrier plate driving mechanism can drive the carrier plate assembly to translate, lift, and vibrate.

[0006] As a further improvement of the present invention, a water collecting tank is provided at the lower end of the box body. A bearing frame is fixedly installed at the top inside the water collecting tank. A filter basket is placed on the bearing frame. A clamping groove is provided on the inner wall of one end of the box body. A partition plate is installed inside the box body through the clamping groove. A plurality of through holes are evenly provided on the partition plate. The water collecting tank, the water inlet pipe, and the water outlet pipe are all arranged on the same side of the partition plate. The water outlet pipe is communicated with the water collecting tank, and the horizontal height of the water outlet pipe is lower than the horizontal height of the filter basket.

[0007] As a further improvement of the present invention, the spraying mechanism includes a connecting block, a first lead screw, a lifting rod, a connecting sleeve, a guide rod, and a nozzle adjusting component. The first lead screw is rotatably installed at the upper end of the connecting block. The lifting rod is a hollow rod. The lower end of the lifting rod is sleeved on the upper end of the first lead screw, and the lifting rod is in threaded cooperation with the first lead screw. The guide rod is fixedly installed at the upper end of the connecting block. The connecting sleeve is fixedly installed at the lower end of the lifting rod, and the connecting sleeve is sleeved on the guide rod. The nozzle adjusting component is installed at the upper end of the lifting rod.

[0008] As a further improvement of the present invention, the nozzle adjusting component includes a top plate, a telescopic frame, a second lead screw, and a slider. The top plate is fixedly installed at the upper end of the lifting rod. The telescopic frame is arranged below the top plate. One end of the telescopic frame is fixedly connected to one end of the top plate. The slider is slidably installed at the upper end of the top plate. The second lead screw is rotatably installed at the upper end of the top plate. The slider is in threaded cooperation with the second lead screw. A strip-shaped opening is provided in the middle of the top plate. The bottom of the slider passes through the strip-shaped opening and is fixedly connected to the other end of the telescopic frame. A plurality of the nozzles are fixedly installed at the lower end of the telescopic frame.

[0009] As a further improvement of the present invention, an installation convex block is fixedly installed on one side of the box body. The installation convex block is L-shaped. An installation groove is provided at the lower end of the connecting block. The installation groove is matched with the installation convex block.

[0010] As a further improvement of the present invention, the carrier plate driving mechanism includes a bracket, a ball screw slide, a sliding frame and a vibrating frame. The ball screw slide is fixedly installed at the upper end of the bracket. The sliding frame is fitted and installed on the ball screw slide. The vibrating frame is installed in the middle of the sliding frame. Cylinders are fixedly installed at the four corners of the vibrating frame. The carrier plate assembly is installed at the telescopic ends of the four cylinders.

[0011] As a further improvement of the present invention, a plurality of shock absorbers are fixedly installed at the upper end of the sliding frame. A plurality of connecting frames are fixedly installed at the upper end of the vibrating frame. Each of the connecting frames is fixedly connected to the upper end of the corresponding shock absorber. A vibrating motor is also fixedly installed at the upper end of the vibrating frame.

[0012] As a further improvement of the present invention, the carrier plate assembly includes a carrier plate, an adjusting plate, a main universal joint and two telescopic cylinders. The upper end of the carrier plate is fixedly connected to the telescopic ends of the plurality of cylinders. The adjusting plate is arranged directly above the carrier plate. The middle part of the adjusting plate is connected to the middle part of the carrier plate through the main universal joint. The two telescopic cylinders are respectively movably installed on two adjacent sides of the upper end of the carrier plate. The telescopic ends of the two telescopic cylinders are respectively movably connected to the corresponding two sides of the adjusting plate.

[0013] As a further improvement of the present invention, the plurality of nozzles and the water inlet pipe are both connected to an external water tank through water pipes and a pump. The external water tank is arranged below the water outlet pipe.

[0014] A method for determining the stability of a spoil bank slope under simulated extreme working conditions uses the above-mentioned prediction device for the instability of a spoil bank slope under simulated extreme working conditions, and includes the following steps: In the initial state, the carrier plate assembly is outside the box body. A spoil bank slope model is built on the carrier plate assembly. During the production process, displacement sensors, pore water pressure sensors, earth pressure sensors and moisture content sensors are respectively arranged in a rectangular array form. After the consolidation of the model production is completed, the experiment is ready to be carried out. A high-speed camera is arranged at a preset distance directly opposite the model test box. The height of the high-speed camera is adjusted. After the start of the experiment, the high-speed camera is turned on to record the appearance change of the spoil bank slope model. The carrier plate driving mechanism drives the carrier plate assembly through the processes of rising, translating and descending, so that the spoil bank slope model enters the box body. By injecting water into the box body from the water inlet pipe and cooperating with a water level detector to monitor the water level, the water level condition of the spoil bank slope is simulated. Water is sprayed into the box body through the spraying mechanism to simulate the rainfall state of the spoil bank slope. The carrier plate assembly is driven to vibrate to simulate the earthquake state of the spoil bank slope. After the experiment is completed, the carrier plate assembly is driven out of the box body, the spoil bank slope model is removed, and then the inside of the box body is cleaned by using the spraying mechanism.

[0015] Advantages of the present invention: 1. The box body of the present invention adopts an integral structure. Compared with the assembled box body, it has higher firmness and sealing performance, effectively ensuring the stability of the experimental environment. The carrier plate driving mechanism can accurately drive the carrier plate assembly to translate, lift and vibrate. Before the experiment, the carrier plate assembly can be conveniently moved into the box body, facilitating the construction of the waste dump slope model; after the experiment, it can be easily moved out, facilitating the cleaning of the box body. The nozzles of the spraying mechanism can be lifted, and the nozzle spacing can be flexibly adjusted, which can not only meet the needs of simulating different rainfall densities, but also change the scouring angle when cleaning the box body, significantly improving the cleaning effect.

[0016] 2. The present invention can perform various operations such as spraying, soaking and vibrating on the waste dump slope model, comprehensively simulating the states of the waste dump slope under different extreme working conditions such as heavy rain, overtopping and earthquake. By arranging various sensors in the model and combining with high-speed cameras to record the appearance changes, the data of the model under different working conditions can be accurately obtained, providing rich and accurate basis for in-depth study of the instability mechanism of the waste dump slope, and helping to improve the prediction ability of the stability of the waste dump slope.

[0017] 3. During the simulation of the reservoir water level and the spraying process, the present invention realizes the recycling of water resources. The water in the external water tank enters the box body from the nozzles and the water inlet pipe under the action of the pump, used to simulate heavy rain and reservoir water level conditions. The discharged water is filtered by the filter basket and geotextile and then flows back into the external water tank. This design greatly reduces the waste of water resources, conforms to the concept of sustainable development, reduces the experimental cost at the same time, improves the resource utilization efficiency, and makes the device more economical and environmentally friendly in long-term use. Description of the drawings

[0018] Figure 1 is a three-dimensional structure diagram of the present invention; Figure 2 is a three-dimensional structure diagram of the present invention from another angle; Figure 3 is a sectional structure diagram of the box body of the present invention; Figure 4 is a connection structure diagram of the box body and the spraying mechanism of the present invention; Figure 5 is a three-dimensional structure diagram of the spraying mechanism of the present invention; Figure 6 is a three-dimensional structure diagram of the nozzle adjustment assembly of the present invention; Figure 7 is a three-dimensional structure diagram of the carrier plate driving mechanism of the present invention; Figure 8 is a three-dimensional structure diagram of the carrier plate assembly of the present invention.

[0019] Description of reference numerals: 1. Box body; 101. Water collecting tank; 102. Water inlet pipe; 103. Water outlet pipe; 104. Filter basket; 105. Partition board; 106. Mounting bump; 2. Carrier plate driving mechanism; 201. Carrier plate assembly; 2011. Carrier plate; 2012. Adjusting plate; 2013. Main universal joint; 2014. Telescopic cylinder; 202. Bracket; 203. Ball screw slider; 204. Sliding frame; 205. Vibration frame; 206. Cylinder; 207. Shock absorber; 208. Connecting frame; 209. Vibration motor; 3. Spraying mechanism; 301. Connecting block; 302. First lead screw; 303. Lifting rod; 304. Connecting sleeve; 305. Guide rod; 306. Sprinkler head adjusting assembly; 3061. Top plate; 3062. Telescopic frame; 3063. Sprinkler head; 3064. Second lead screw; 3065. Slide block; 3066. Strip-shaped opening. Detailed implementation manners

[0020] To make the objectives, technical solutions and advantages of the embodiments of the present disclosure clearer, the technical solutions in the embodiments of the present disclosure will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present disclosure. Obviously, the described embodiments are only a part rather than all of the embodiments of the present disclosure. Usually, the components of the embodiments of the present disclosure described and illustrated here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present disclosure is not intended to limit the scope of the claimed present disclosure, but merely represents selected embodiments of the present disclosure. All other embodiments obtained by those skilled in the art based on the embodiments of the present disclosure without creative efforts fall within the scope of protection of the present disclosure.

[0021] Refer to Figure 1 and Figure 2As shown in the figure, it is a specific implementation manner of a prediction device for the instability of a waste dump slope under simulated extreme working conditions according to the present invention, including a box body 1, a carrier plate driving mechanism 2 and a spraying mechanism 3. A water level detector is installed inside the box body 1. A water inlet pipe 102 is fixedly installed at the top of one side of the box body 1, and a water outlet pipe 103 is fixedly installed at the bottom of one side of the box body 1. Valves are provided on both the water inlet pipe 102 and the water outlet pipe 103. The spraying mechanism 3 is installed on one side of the box body 1. A plurality of nozzles 3063 are equidistantly arranged on the spraying mechanism 3. The spraying mechanism 3 can drive the plurality of nozzles 3063 to lift above the box body 1. The carrier plate driving mechanism 2 is arranged on the other side of the box body 1. A carrier plate assembly 201 is installed on the carrier plate driving mechanism 2. The carrier plate assembly 201 can carry the waste dump slope model. The carrier plate driving mechanism 2 can drive the carrier plate assembly 201 to translate, lift and vibrate. Through the overall structure setting of the present invention, the waste dump slope model can be sprayed, immersed in water and vibrated to simulate the states of the waste dump slope under different conditions of heavy rain, overtopping dam and earthquake. The box body 1 is an integral structure, and its firmness and sealing performance are better than those of a assembled box body. By driving the carrier plate assembly 201 to translate and lift, it can be moved into and out of the box body 1, which is convenient for building the waste dump slope model on the carrier plate assembly 201 and convenient for cleaning the box body 1 after the experiment is completed.

[0022] In a further embodiment, as Figure 3As shown in the figure, a water collecting tank 101 is provided at the lower end of the box body 1. A bearing frame is fixedly installed at the top inside the water collecting tank 101. A filtering basket 104 is placed on the bearing frame. A clamping groove is provided on the inner wall at one end of the box body 1. A partition plate 105 is installed in the box body 1 through the clamping groove. A plurality of through holes are evenly provided on the partition plate 105. The water collecting tank 101, the water inlet pipe 102 and the water outlet pipe 103 are all arranged on the same side of the partition plate 105. The water outlet pipe 103 is communicated with the water collecting tank 101, and the horizontal height of the water outlet pipe 103 is lower than the horizontal height of the filtering basket 104. When simulating the water level condition of the reservoir, the connection between the partition plate 105 and the clamping groove is sealed with waterproof tape, dividing the box body 1 into two parts. The waste dump slope model is on the side with a larger volume, and the water level detector, the water inlet pipe 102 and the water outlet pipe 103 are all on the other side, preventing the soil scattered by the waste dump slope model from affecting the water inlet, water outlet and water level detection process. A geotextile is laid outside the side of the partition plate 105 in contact with the soil to prevent the through holes from being blocked. When cleaning the box body 1, the partition plate 105 is removed, and the box body 1 is sprayed with water by the spraying mechanism 3. The muddy water passes through the filtering basket 104. A geotextile is also laid on the filtering basket 104 for filtering the muddy water. The filtered water is discharged from the water collecting tank 101 through the water outlet pipe 103. A plurality of the nozzles 3063 and the water inlet pipe 102 are both connected to an external water tank through water pipes and a pump. The external water tank is arranged below the water outlet pipe 103. The water in the external water tank enters the box body 1 from the nozzles 3063 and the water inlet pipe 102 under the action of the pump, for simulating rainstorm and reservoir water level conditions. And the discharged water is filtered and re-entered into the external water tank to recycle water resources and reduce water resource waste.

[0023] In a further embodiment, as Figures 4 - 6 shown, the spraying mechanism 3 includes a connecting block 301, a first lead screw 302, a lifting rod 303, a connecting sleeve 304, a guide rod 305 and a nozzle adjusting assembly 306. The first lead screw 302 is rotatably installed at the upper end of the connecting block 301. The lifting rod 303 is a hollow rod. The lower end of the lifting rod 303 is sleeved on the upper end of the first lead screw 302, and the lifting rod 303 is in threaded cooperation with the first lead screw 302. The guide rod 305 is fixedly installed at the upper end of the connecting block 301. The connecting sleeve 304 is fixedly installed at the lower end of the lifting rod 303, and the connecting sleeve 304 is sleeved on the guide rod 305. The nozzle adjusting assembly 306 is installed at the upper end of the lifting rod 303. A rotating handle is provided at the lower end of the first lead screw 302. By rotating the first lead screw 302 through the rotating handle, the lifting rod 303 can be driven to lift, thereby driving the nozzle adjusting assembly 306 to lift. Since the impact force of the water required when simulating rainstorm weather and cleaning the box body 1 is different, by adjusting the height of the nozzles 3063 and cooperating with the flow rate adjustment of the nozzles 3063 themselves, the spraying water pressure can be controlled, which is applicable to various usage situations.

[0024] The nozzle adjusting assembly 306 includes a top plate 3061, a telescopic frame 3062, a second lead screw 3064, and a slider 3065. The top plate 3061 is fixedly installed at the upper end of the lifting rod 303. The telescopic frame 3062 is arranged below the top plate 3061. One end of the telescopic frame 3062 is fixedly connected to one end of the top plate 3061. The slider 3065 is slidably installed at the upper end of the top plate 3061. The second lead screw 3064 is rotatably installed at the upper end of the top plate 3061. The slider 3065 is in threaded cooperation with the second lead screw 3064. A strip-shaped opening 3066 is provided in the middle of the top plate 3061. The bottom of the slider 3065 passes through the strip-shaped opening 3066 and is fixedly connected to the other end of the telescopic frame 3062. A plurality of nozzles 3063 are fixedly installed at the lower end of the telescopic frame 3062. By connecting the second lead screw 3064 to a motor or a knob and rotating the second lead screw 3064 to drive the slider 3065 to move, the length of the telescopic frame 3062 is adjusted, so as to change the distance between two adjacent nozzles 3063, simulating different rainfall densities. At the same time, when the box body 1 is cleaned, the movable nozzles 3063 can continuously change the flushing angle of the box body 1, improving the cleaning effect.

[0025] An installation convex block 106 is fixedly installed on one side of the box body 1. The installation convex block 106 is arranged in an L shape. An installation groove is provided at the lower end of the connection block 301. The installation groove is matched with the installation convex block 106, which is convenient for the connection and disassembly of the spraying mechanism 3 and the box body 1.

[0026] In a further embodiment, as Figure 7 and Figure 8 shown, the carrier plate driving mechanism 2 includes a bracket 202, a ball screw slide table 203, a sliding frame 204, and a vibrating frame 205. The ball screw slide table 203 is fixedly installed at the upper end of the bracket 202. The sliding frame 204 is cooperatively installed on the ball screw slide table 203. The vibrating frame 205 is installed in the middle of the sliding frame 204. Cylinders 206 are fixedly installed at the four corners of the vibrating frame 205. The carrier plate assembly 201 is installed at the telescopic ends of the four cylinders 206. The ball screw slide table 203 can drive the sliding frame 204 to slide, driving the vibrating frame 205 to translate. The cylinders 206 can drive the carrier plate assembly 201 to lift. The two cooperate to facilitate driving the carrier plate assembly 201 to enter and exit the box body 1.

[0027] A plurality of shock absorbers 207 are fixedly installed at the upper end of the sliding frame 204. A plurality of connecting frames 208 are fixedly installed at the upper end of the vibrating frame 205. Each of the connecting frames 208 is fixedly connected to the upper end of the corresponding shock absorber 207. A vibration motor 209 is also fixedly installed at the upper end of the vibrating frame 205. The vibration motor 209 drives the vibrating frame 205 to vibrate, thereby driving the carrier plate assembly 201 to vibrate, simulating the influence of the earthquake situation on the waste dump slope model on the carrier plate assembly 201. The vibrating frame 205 is connected to the sliding frame 204 through the cooperation of the shock absorbers 207 and the connecting frames 208, reducing the influence of the vibration of the vibrating frame 205 on other components and reducing the generated noise.

[0028] The carrier plate assembly 201 includes a carrier plate 2011, an adjusting plate 2012, a main universal joint 2013 and two telescopic cylinders 2014. The upper end of the carrier plate 2011 is fixedly connected to the telescopic ends of a plurality of cylinders 206. The adjusting plate 2012 is arranged directly above the carrier plate 2011. The middle part of the adjusting plate 2012 is connected to the middle part of the carrier plate 2011 through the main universal joint 2013. The two telescopic cylinders 2014 are respectively movably installed on two adjacent sides of the upper end of the carrier plate 2011. The telescopic ends of the two telescopic cylinders 2014 are respectively movably connected to the corresponding two sides of the adjusting plate 2012. By driving the two telescopic cylinders 2014, the adjusting plate 2012 can be driven to perform flexible angle adjustment. The waste dump slope model is built on the adjusting plate 2012, facilitating the adjustment of its angle and simulating waste dump slopes with different inclination degrees.

[0029] A method for determining the stability of a waste dump slope under simulated extreme working conditions uses the above-mentioned device for predicting the instability of a waste dump slope under simulated extreme working conditions, and includes the following steps: In the initial state, the carrier plate assembly 201 is outside the box body 1. A waste dump slope model is built on the carrier plate assembly 201. During the production process, displacement sensors, pore water pressure sensors, earth pressure sensors and moisture content sensors are respectively arranged in a rectangular array form. After the model production and consolidation are completed, the test is ready to be carried out; A high-speed camera is arranged at an appropriate distance opposite the model test box, and the high-speed camera is adjusted to an appropriate height. After the start of the experiment, the high-speed camera is turned on to record the appearance change of the waste dump slope model; The carrier plate driving mechanism 2 drives the carrier plate assembly 201 through the processes of rising, translating and descending, so that the waste dump slope model enters the box body 1. Water is injected into the box body 1 through the water inlet pipe 102, and the water level is monitored in cooperation with the water level detector to simulate the water level situation of the waste dump slope; The box body 1 is sprayed with water through the spraying mechanism 3 to simulate the rainfall state of the waste dump slope; The carrier plate assembly 201 is driven to vibrate to simulate the earthquake state of the waste dump slope; After the experiment is completed, drive the carrier plate assembly 201 out of the box body 1, remove the spoil bank slope model, and then use the spraying mechanism 3 to clean the inside of the box body 1.

[0030] Finally, it should be noted that the above embodiments are only specific embodiments of the present disclosure, used to illustrate the technical solutions of the present disclosure, rather than limiting them. The protection scope of the present disclosure is not limited thereto. Although the present disclosure has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: any person skilled in the art within the technical scope disclosed by the present disclosure can still modify the technical solutions recorded in the foregoing embodiments or can easily think of changes, or perform equivalent replacements on some of the technical features; and these modifications, changes or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present disclosure, and should all be covered by the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be subject to the protection scope of the claims.

Claims

1. A prediction device for slope instability of a waste dump under simulated extreme working conditions, characterized in that, It includes a box body (1), a carrier plate driving mechanism (2) and a spraying mechanism (3). A water level detector is installed inside the box body (1). At the top of one side of the box body (1), a water inlet pipe (102) is fixedly installed. At the bottom of one side of the box body (1), a water outlet pipe (103) is fixedly installed. Valves are provided on both the water inlet pipe (102) and the water outlet pipe (103). The spraying mechanism (3) is installed on one side of the box body (1). A plurality of spray heads (3063) are equidistantly arranged on the spraying mechanism (3). The spraying mechanism (3) can drive the plurality of spray heads (3063) to lift above the box body (1). The carrier plate driving mechanism (2) is arranged on the other side of the box body (1). A carrier plate assembly (201) is installed on the carrier plate driving mechanism (2). The carrier plate assembly (201) can carry the slope model of the waste dump. The carrier plate driving mechanism (2) can drive the carrier plate assembly (201) to translate, lift and vibrate.

2. The prediction device for slope instability of a waste dump under simulated extreme working conditions according to claim 1, wherein A water collecting tank (101) is provided at the lower end of the box body (1). At the top inside the water collecting tank (101), a bearing frame is fixedly installed. A filter basket (104) is placed on the bearing frame. A clamping groove is provided on the inner wall of one end of the box body (1). A partition plate (105) is installed inside the box body (1) through the clamping groove. A plurality of through holes are evenly provided on the partition plate (105). The water collecting tank (101), the water inlet pipe (102) and the water outlet pipe (103) are all arranged on the same side of the partition plate (105). The water outlet pipe (103) is communicated with the water collecting tank (101), and the horizontal height of the water outlet pipe (103) is lower than the horizontal height of the filter basket (104).

3. The simulated extreme working condition waste dump slope instability prediction device according to claim 1, characterized in that, The spraying mechanism (3) includes a connecting block (301), a first lead screw (302), a lifting rod (303), a connecting sleeve (304), a guide rod (305) and a spray head adjusting assembly (306). The first lead screw (302) is rotatably installed at the upper end of the connecting block (301). The lifting rod (303) is a hollow rod. The lower end of the lifting rod (303) is sleeved on the upper end of the first lead screw (302), and the lifting rod (303) is in threaded cooperation with the first lead screw (302). The guide rod (305) is fixedly installed at the upper end of the connecting block (301). The connecting sleeve (304) is fixedly installed at the lower end of the lifting rod (303), and the connecting sleeve (304) is sleeved on the guide rod (305). The spray head adjusting assembly (306) is installed at the upper end of the lifting rod (303).

4. The device for predicting the instability of the waste dump slope under simulated extreme working conditions according to claim 3, characterized in that, The nozzle adjustment assembly (306) includes a top plate (3061), a telescopic frame (3062), a second screw rod (3064) and a slider (3065), wherein the top plate (3061) is fixedly mounted on the upper end of the lifting rod (303), the telescopic frame (3062) is arranged below the top plate (3061), one end of the telescopic frame (3062) is fixedly connected to one end of the top plate (3061), and the slider (3065) is slidably mounted on the top plate (3061). 61), the second screw rod (3064) is rotatably mounted on the upper end of the top plate (3061), the slider (3065) is threadedly matched with the second screw rod (3064), a strip opening (3066) is provided in the middle of the top plate (3061), the bottom of the slider (3065) is inserted through the strip opening (3066) and is fixedly connected to the other end of the telescopic frame (3062), and a plurality of the nozzles (3063) are fixedly mounted on the lower end of the telescopic frame (3062).

5. The prediction device for slope instability of a waste dump under simulated extreme working conditions according to claim 3, characterized in that, A mounting protrusion (106) is fixedly mounted on one side of the box body (1), the mounting protrusion (106) being arranged in an L-shape, and a mounting groove is provided at the lower end of the connecting block (301), the mounting groove being matched with the mounting protrusion (106).

6. The prediction device for slope instability of a waste dump under simulated extreme working conditions according to claim 1, characterized in that The carrier plate driving mechanism (2) comprises a bracket (202), a ball screw slide (203), a sliding frame (204) and a vibration frame (205), wherein the ball screw slide (203) is fixedly mounted on the upper end of the bracket (202), the sliding frame (204) is cooperatively mounted on the ball screw slide (203), the vibration frame (205) is mounted on the middle part of the sliding frame (204), cylinders (206) are fixedly mounted at the four corners of the vibration frame (205), and the carrier plate assembly (201) is mounted on the telescopic ends of the four cylinders (206).

7. The device for predicting the instability of the waste dump slope under simulated extreme working conditions according to claim 6, characterized in that, A plurality of shock absorbers (207) are fixedly mounted on the upper end of the sliding frame (204), a plurality of connecting frames (208) are fixedly mounted on the upper end of the vibration frame (205), each connecting frame (208) is fixedly connected to the upper end of the corresponding shock absorber (207), and a vibration motor (209) is also fixedly mounted on the upper end of the vibration frame (205).

8. The device for predicting slope instability of a spoil dump simulating extreme working conditions according to claim 6 is characterized in that: The carrier plate assembly (201) comprises a carrier plate (2011), an adjustment plate (2012), a main universal joint (2013) and two telescopic cylinders (2014); the upper end of the carrier plate (2011) is fixedly connected to the telescopic ends of a plurality of cylinders (206); the adjustment plate (2012) is arranged directly above the carrier plate (2011); the middle portion of the adjustment plate (2012) is connected to the middle portion of the carrier plate (2011) via the main universal joint (2013); the two telescopic cylinders (2014) are respectively movably mounted on two adjacent sides of the upper end of the carrier plate (2011); and the telescopic ends of the two telescopic cylinders (2014) are respectively movably connected to two corresponding sides of the adjustment plate (2012).

9. The device for predicting the instability of the waste dump slope under simulated extreme working conditions according to claim 1, wherein, The plurality of nozzles (3063) and the water inlet pipe (102) are connected to an external water tank via a water pipe and a pump, and the external water tank is arranged below the water outlet pipe (103).

10. A method for determining the slope stability of a waste dump under simulated extreme working conditions, which uses the device for predicting the slope instability of a waste dump under simulated extreme working conditions as described in any one of claims 1-9, characterized in that, The steps include: In the initial state, the carrier plate assembly (201) is outside the box body (1). A waste dump slope model is built on the carrier plate assembly (201). During the production process, displacement sensors, pore water pressure sensors, earth pressure sensors, and water content sensors are arranged in a rectangular array form. After the consolidation of the model production is completed, the experiment is ready to be carried out; A high-speed camera is arranged at a preset distance facing the model test box. The height of the high-speed camera is adjusted. After the experiment starts, the high-speed camera is turned on to record the appearance change of the waste dump slope model; The carrier plate driving mechanism (2) drives the carrier plate assembly (201) through the processes of rising, translation, and descending, so that the waste dump slope model enters the box body (1). By injecting water into the box body (1) from the water inlet pipe (102) and cooperating with the water level detector to monitor the water level, the water level condition of the waste dump slope is simulated; Water is sprayed into the box body (1) through the spraying mechanism (3) to simulate the rainfall state of the waste dump slope; The carrier plate assembly (201) is driven to vibrate to simulate the earthquake state of the waste dump slope; After the experiment is completed, the carrier plate assembly (201) is driven out of the box body (1), the waste dump slope model is removed, and then the inside of the box body (1) is cleaned by using the spraying mechanism (3).

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