A device and method for simulating a cavity induced by a pressurized water pipe rupture in a dynamic water environment

Abstract

The application relates to a device and a method for simulating a cavity induced by a pressurized water pipe rupture in a dynamic water environment, which comprises a simulation box and a water pipe module. The internal space of the simulation box is divided into a first cavity and a second cavity. The water pipe module is arranged in the simulation box. The water pipe module comprises a second pipe, a second pipe is connected with an adjusting assembly, a camera assembly is arranged in the adjusting assembly, one end of a first pipe is sleeved in the adjusting assembly and connected with the second pipe, the other end of the first pipe is connected with a traction assembly, and the first pipe is also connected with a water delivery assembly. The adjusting assembly comprises a first adjusting part and a second adjusting part. The first adjusting part is rotationally connected with the second adjusting part to adjust the opening between the first adjusting part and the second adjusting part. The application has the advantages of reasonable structure, convenient operation, various working conditions, reusability, low use cost, realization of the simulation of the whole process of the pipe rupture without interfering with the soil state, and recording of the cavity formation process through the camera.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of simulating road collapse, in particular to a device and method for simulating a cavity induced by a pressurized water pipe rupture in a dynamic water environment. BACKGROUND

[0002] At present, the effective detection method for road collapse is limited to geophysical prospecting methods, which can provide early warning to a certain extent, but the cost is high and the timeliness is poor. When encountering water, the detection effect of electromagnetic methods will be weakened, and the formation mechanism of underground cavities and road collapse has not yet formed a convincing theory.

[0003] Nowadays, the research on the formation and effect of underground cavities includes not only field measurement, but also theoretical model experiment. According to the properties of a specific soil, the experiment of pipe water seepage simulation is carried out to study the process of cavity formation under the action of water flow and explore the collapse mechanism. In the invention patent with the publication number CN109920318A, a simulation device and method for subgrade cavity model are disclosed, which specifically fills the soil and organic glass pipe with fixed damage opening in the model box, and has a pressurizing mechanism. While water is supplied, a load is applied to simulate the subgrade cavity formation process under the coupling action of pressurized water supply pipe leakage and road load. However, this method has the following disadvantages: the pipe damage opening size is fixed, and the cavity formation process under only one working condition can be simulated at a time. If the cavities under different working conditions are to be compared, the glass pipe needs to be replaced many times, which is not only time-consuming and laborious, but also has low material utilization rate. Since the pipe damage is not instantaneous, but an accumulation process, the different development stages of pipe cracks have different scouring effects on the soil, and the finally formed cavities are different. The fixed pipe damage opening size is not conducive to the completion of the exploration of the collapse mechanism. SUMMARY

[0004] Therefore, the technical problem to be solved by the present application is to overcome the defects in the prior art theoretical model experiment, the process of cavity formation under the action of water flow, and the exploration of the collapse mechanism. The pipe damage opening size is fixed, the cavities under different working conditions need to be compared, the glass pipe needs to be replaced many times, which is time-consuming and laborious, and the material utilization rate is low. The pipe damage is an accumulation process, the different development stages of pipe cracks have different scouring effects on the soil, and the fixed pipe damage opening size is not conducive to the completion of the exploration of the collapse mechanism.

[0005] To solve the above technical problems, the present application provides a device for simulating a cavity induced by a pressurized water pipe rupture in a dynamic water environment, comprising

[0006] a simulation box, the internal space of the simulation box is divided into a first cavity for water injection and a second cavity for soil filling;

[0007] A water pipe module is arranged in the simulation box, the water pipe module comprises an adjusting assembly, a first pipe and a second pipe, the second pipe is connected to the adjusting assembly, the adjusting assembly is provided with a camera assembly for recording soil changes, one end of the first pipe is sleeved in the adjusting assembly and connected to the second pipe, the other end of the first pipe is connected to a traction assembly for pulling the first pipe, the first pipe penetrates through the first cavity, and the first pipe is further connected to a water delivery assembly.

[0008] The adjusting assembly comprises a first adjusting member and a second adjusting member sleeved with the first adjusting member, and the first adjusting member is rotationally connected with the second adjusting member to adjust the opening between the first adjusting member and the second adjusting member.

[0009] In an embodiment of the present application, the simulation box is divided into a first cavity and a second cavity by a water baffle.

[0010] In an embodiment of the present application, the first adjusting member is provided with a first handle, and the second adjusting member is provided with a second handle, the second handle penetrates through and extends out of the bottom of the simulation box.

[0011] In an embodiment of the present application, the bottom of the simulation box is provided with a base plate, the second handle penetrates through the base plate and the bottom of the simulation box in sequence, and the bottom of the simulation box is provided with a rotating groove for rotating the second handle.

[0012] In an embodiment of the present application, the traction assembly comprises a connecting pipe, a driving bevel gear, a driven bevel gear and a traction rope, one end of the connecting pipe is provided with an end cover, the other end of the connecting pipe is connected to the first pipe, the driving bevel gear is arranged on the end cover, the driven bevel gear is engaged with the driving bevel gear, a driving gear shaft is arranged on the center shaft of the driving bevel gear, a driving rod is connected to the end of the driving gear shaft, a driven gear shaft is arranged on the center shaft of the driven bevel gear, the driven bevel gear is connected to the connecting pipe through the driven gear shaft, one end of the traction rope is wound on the driven gear shaft, and the other end of the traction rope is connected to the first pipe.

[0013] In an embodiment of the present application, the first pipe and the second pipe are connected through a connecting ring.

[0014] In an embodiment of the present application, the water delivery assembly comprises a water delivery pipe and a booster pump, the booster pump is arranged on the water delivery pipe, and the output end of the water delivery pipe is connected to the first pipe.

[0015] In an embodiment of the present application, the camera is connected to an industrial computer, and the industrial computer is connected to the booster pump.

[0016] A method for simulating a cavity induced by a pressurized water pipe rupture in a dynamic water environment, which is simulated by using the device for simulating a cavity induced by a pressurized water pipe rupture in a dynamic water environment as described in the above embodiment, and comprises the following steps:

[0017] S1: Assemble the simulation box, separate the first cavity and the second cavity in the simulation box according to the simulation requirements, and install the water pipe module without leakage in the simulation box;

[0018] S2: Adjust the opening between the first adjusting member and the second adjusting member to the simulation leakage size, fill the soil in the second cavity of the simulation box, and inject water in the first cavity, after the dynamic water flow path is formed in the simulation box, the water supply assembly is opened for a set time, the first water pipe is pulled to move a set distance in the adjusting assembly through the traction assembly, after the water flow of the output end of the second water pipe is reduced, the water leakage of the adjusting assembly is controlled to ensure that the soil is continuously scoured;

[0019] S3: After the simulation is completed, the water supply assembly is disconnected, the first water pipe is reset, and the formation of the cavity is recorded by the camera.

[0020] In an embodiment of the present application, when different working conditions need to be simulated, the position of the first cavity, the opening and closing between the first adjusting member and the second adjusting member are changed, and steps S2 and S3 are repeated.

[0021] The above technical scheme of the present application has the following advantages compared with the prior art:

[0022] The device and method for simulating the pressure water pipe rupture induced cavity in the dynamic water environment, the space in the simulation box is divided into a first cavity and a second cavity, water is injected into the first cavity, a dynamic water flow path from high to low can be formed in the simulation box, the water flow direction is simulated according to the simulation requirement, a first pipe, an adjusting assembly and a second pipe are arranged in the simulation box, a water supply assembly is connected with the first pipe for providing a water source, one end of the first pipe is connected with a traction assembly, the other end is connected with the second pipe and is sleeved in the adjusting assembly, the second pipe is fixedly connected with the adjusting assembly, the first adjusting assembly in the adjusting assembly is sleeved with the second adjusting assembly, the opening between the two can be adjusted by rotating to simulate the leakage size, and the camera assembly in the adjusting assembly can record the change of the soil body and the formation of the cavity. The water pipe module can be adjusted according to different simulation requirements, the formation process of the cavity under various working conditions can be simulated, the whole does not need to be replaced, the use is convenient, time and labor are saved, and materials are saved. Meanwhile, the traction assembly can pull the first pipe to move in the adjusting assembly, further adjustment is realized, the continuous erosion of the soil body by the pipeline crack at different development stages is simulated, the process of cavity formation under the action of water flow is facilitated to study, and the collapse mechanism is explored. The device has the advantages of reasonable structure, convenient operation, various working conditions, reusability, low use cost, realization of the simulation of the whole pipeline rupture process without disturbing the soil body state, and recording of the cavity formation process by the camera assembly. BRIEF DESCRIPTION OF DRAWINGS

[0023] In order to make the content of the present application more easily understood, the present application will be further described in detail below according to specific embodiments of the present application and in combination with the drawings.

[0024] Figure 1 is a structural schematic view of the device for simulating the pressure water pipe rupture induced cavity in the dynamic water environment of the present application;

[0025] Figure 2 is a structural schematic view of the water pipe module in the device for simulating the pressure water pipe rupture induced cavity in the dynamic water environment of the present application;

[0026] Figure 3 is a partial structural schematic view of the traction assembly in the device for simulating the pressure water pipe rupture induced cavity in the dynamic water environment of the present application;

[0027] Figure 4 is a schematic view of the pad and the bottom of the simulation box in the device for simulating the pressure water pipe rupture induced cavity in the dynamic water environment of the present application;

[0028] Figure 5 is a structural schematic view of the connecting ring in the device for simulating the pressure water pipe rupture induced cavity in the dynamic water environment of the present application;

[0029] The description reference signs are as follows: 1, simulation box; 12, water baffle; 13, water baffle; 14, pad; 15, angle steel; 111, first cavity; 112, second cavity; 2, water pipe module; 21, adjusting assembly; 211, first adjusting piece; 2111, first handle; 212, second adjusting piece; 2121, second handle; 22, first pipe; 23, second pipe; 24, connecting ring; 25, camera assembly; 26, traction assembly; 261, connecting pipe; 262, end cover; 263, driving bevel gear; 264, driven bevel gear; 265, traction rope; 266, driving rod; 267, driven gear shaft; 27, water delivery assembly; 271, water delivery pipe; 272, booster pump; 3, industrial computer. DETAILED DESCRIPTION

[0030] The present application will be further described below in conjunction with the drawings and specific examples, so that those skilled in the art can better understand the present application and implement it, but the examples are not limiting to the present application. Example 1

[0031] Please refer to Figures 1-5 The present application provides a device for simulating the pressure water pipe rupture induced cavity in dynamic water environment, which comprises

[0032] The internal space of the simulation box 1 is divided into a first cavity 111 for water injection and a second cavity 112 for filling soil;

[0033] The water pipe module 2 is arranged in the simulation box 1, and the water pipe module 2 comprises an adjusting assembly 21, a first pipe 22 and a second pipe 23, the second pipe 23 is connected to the adjusting assembly 21, the adjusting assembly 21 is provided with a camera assembly 25 for recording soil changes, one end of the first pipe 22 is sleeved in the adjusting assembly 21 and connected with the second pipe 23, the other end is connected with a traction assembly 26 for pulling the first pipe 22, the first pipe 22 penetrates the first cavity 111, and the first pipe 22 is further connected with a water delivery assembly 27;

[0034] The adjusting assembly 21 comprises a first adjusting piece 211 and a second adjusting piece 212 sleeved with the first adjusting piece 211, and the first adjusting piece 211 and the second adjusting piece 212 are connected along the track to adjust the opening between the first adjusting piece 211 and the second adjusting piece 212.

[0035] The device for inducing cavity by breaking of pressurized water pipe in simulated dynamic water environment divides the space in the simulation box 1 into a first cavity 111 and a second cavity 112, water is injected into the first cavity 111, and a dynamic water flow path from high to low is formed in the simulation box 1, that is, water naturally forms seepage to simulate the condition of underground water. According to the simulation requirement, a first pipe 22, an adjusting assembly and a second pipe 23 are arranged in the simulation box 1, a water supply assembly 27 is connected with the first pipe 22 for providing water source, one end of the first pipe 22 is connected with a traction assembly 26, the other end is connected with the second pipe 23 and is sleeved in the adjusting assembly 21, the second pipe 23 is fixedly connected with the adjusting assembly 21, the first adjusting assembly in the adjusting assembly 21 is sleeved with the second adjusting assembly, the opening between them can be adjusted by rotating to simulate the size of seepage, and a camera assembly 25 in the adjusting assembly 21 can record the change of soil body and the formation of cavity. The water pipe module 2 can be adjusted according to different simulation requirements, and can simulate the formation process of cavity under various working conditions, without the need of overall replacement, convenient to use, time-saving and labor-saving, and material-saving. Meanwhile, the traction assembly 26 can pull the first pipe 22 to move in the adjusting assembly 21, further to realize adjustment to simulate the continuous erosion of soil body by different development stages of pipe crack, facilitate the research on the process of cavity formation under the action of water flow, and explore the collapse mechanism. The device has reasonable structure, convenient operation, various working conditions, can be repeatedly used, has low use cost, can realize the simulation of the whole process of pipe breaking without disturbing the state of soil body, and can record the process of cavity formation through the camera assembly 25.

[0036] Specifically, a plurality of water plates 13 and water plates 12 are arranged in the simulation box 1, the simulation box 1 is divided into the first cavity 111 and the second cavity 112 by the water plate 12, and the water pipe module 2 passes through the water plate 12, according to the dynamic water flow path in the simulation box 1, the water plates 13 can be arranged at both ends of the water flow path to prevent the overall direction of water flow from being changed. A plurality of water plates 13 can be arranged at different positions in the simulation box 1 as required. Angle steels 15 are arranged at the corners of the simulation box 1, and the arrangement of the angle steels 15 ensures the stability of the simulation box 1 during the simulation process.

[0037] Further, a first handle 2111 is arranged on the first adjusting member 211, and a second handle 2121 is arranged on the second adjusting member 212, and the second handle 2121 penetrates and extends out of the bottom of the simulation box 1. In order to facilitate the adjustment of the size of the opening between the first adjusting member 211 and the second adjusting member 212 to simulate the size of seepage, the first handle 2111 is fixed on the first adjusting member 211, and the second handle 2121 is fixed on the second adjusting member 212, and after the filling of soil body is completed, the first handle 2111 and the second handle 2121 can be used to adjust different positions correspondingly.

[0038] The second handle 2121 passes through the gasket plate 14 and the bottom of the simulation box 1 in sequence, and the bottom of the simulation box 1 is provided with a rotating groove for the rotation of the second handle 2121. The gasket plate 14 is arranged to prevent the soil from leaking out, and the rotating groove in the bottom of the simulation box 1 can meet the adjustment of the second handle 2121 to the second adjusting part 212 at different angles.

[0039] In the embodiment, the traction assembly 26 comprises a connecting pipe 261, a driving bevel gear 263, a driven bevel gear 264 and a traction rope 265. One end of the connecting pipe 261 is provided with an end cover 262, and the other end is connected with the first pipe 22. The driving bevel gear 263 is arranged on the end cover 262. The driven bevel gear 264 is engaged with the driving bevel gear 263. A driving gear shaft is arranged on the central shaft of the driving bevel gear 263. A driving rod 266 is connected with the end of the driving gear shaft. A driven gear shaft 267 is arranged on the central shaft of the driven bevel gear 264. The driven bevel gear 264 is connected with the connecting pipe 261 through the driven gear shaft 267. One end of the traction rope 265 is wound on the driven gear shaft 267, and the other end is connected with the first pipe 22. The driving rod 266 is a rocker or a hand wheel, which can drive the driving bevel gear 263 to rotate. The driving rod 266 drives the driving bevel gear 263 to rotate, which drives the driven bevel gear 264 engaged with it to rotate, and drives the first pipe 22 to move in the adjusting assembly 21, so as to change the opening size of the adjusting assembly 21 in the extension direction of the water pipe module 2, simulate the erosion of water to the soil at different stages, and facilitate the research on the formation of the cavity and the exploration of the collapse mechanism.

[0040] Further, two driven bevel gears 264 are arranged on the driving bevel gear 263, and the same driven gear shaft 267 is arranged on the central shaft of the two driven bevel gears 264 and fixed in the connecting pipe 261. The driving rod 266 drives the driving bevel gear 263 to rotate, which drives the two driven bevel gears 264 to rotate synchronously. The traction rope 265 is arranged on the driven gear shaft 267 through the two traction ropes 265, which balances the movement of the first pipe 22 in the adjusting assembly 21 by a certain distance. The arrangement of the two traction ropes 265 and the two driven bevel gears 264 makes the movement of the first pipe 22 more stable. After the simulation is completed, the first pipe 22 can be manually pushed back and connected with the second pipe 23. At this time, the traction rope 265 rotates on the driven gear shaft 267 to reset.

[0041] Further, the first pipe 22 and the second pipe 23 are connected through the connecting ring 24, and no gap exists when the first pipe 22 and the second pipe 23 are connected. The second pipe 23 is fixedly connected with the adjusting assembly 21 and no water leakage phenomenon exists, and the first pipe 22 can move in the adjusting assembly 21 and is not slid.

[0042] Specifically, the water supply assembly 27 includes a water supply pipe 271 and a booster pump 272, the booster pump 272 is arranged on the water supply pipe 271, the output end of the water supply pipe 271 is communicated with the first pipe 22, the water supply pipe 271 provides a water source for the water pipe module 2, and the booster pump 272 can provide stable water pressure when simulating pipe rupture, so as to avoid that water pressure in the pipe is reduced due to water exosmosis. When the water flow at the output end of the second water pipe is obviously reduced, the booster pump 272 is used to maintain the water pressure in the water pipe module 2, so as to ensure that water exosmosis of the water pipe module 2 can continuously erode the soil outside the pipe and can have a long-term effect on the simulated underground dynamic water, and the simulation effect is ensured.

[0043] Further, the camera assembly 25 is connected with the industrial computer 3, in the simulation experiment process, the change of the soil and the formation of the cavity can be recorded and observed in real time. In addition, the industrial computer 3 is connected with the booster pump 272, the industrial computer 3 can be used to control the booster pump 272 in real time, so as to adjust the water pressure in the water pipe module 2 and ensure the simulation effect. Embodiment 2

[0044] The application further provides a method for simulating a cavity induced by a pressurized water pipe rupture in a dynamic water environment, and the method is simulated by using the device for simulating a cavity induced by a pressurized water pipe rupture in a dynamic water environment in the above embodiment, and includes the following steps.

[0045] S1: Assemble the simulation box 1, divide the simulation box 1 into the first cavity 111 and the second cavity 112 according to simulation requirements, and install the water pipe module 2 without water leakage in the simulation box 1;

[0046] S2: Adjust the opening between the first adjusting part 211 and the second adjusting part 212 to the simulation leakage size, fill the soil in the second cavity 112 of the simulation box 1, and inject water in the first cavity 111, after a dynamic water flow path is formed in the simulation box 1, the water supply assembly 27 is opened for a set time, the first water pipe is pulled to move a set distance in the adjusting assembly 21 through the traction assembly 26, and after the water flow at the output end of the second water pipe is reduced, the water supply assembly 27 is controlled to ensure that water exosmosis of the adjusting assembly continuously erodes the soil.

[0047] S3: After the simulation is completed, the water supply assembly 27 is disconnected, the first water pipe is reset, and the cavity shape and formation are recorded through the camera assembly 25, that is, the cavity shape formed under the joint action of the underground dynamic water and the pipe water exosmosis is recorded.

[0048] Specifically, when different working conditions need to be simulated, the opening size between the first adjusting member 211 and the second adjusting member 212 can be further adjusted by adjusting the first grip 2111 and the second grip 2121, so as to simulate the pipeline crack under different opening sizes, so as to adapt to different simulation environments, without the need to replace the water pipe module 2 as a whole, saving time and effort, and saving materials. In addition, according to the simulation requirements, the position of the first cavity 111, that is, the position of the water baffle 12, can be changed, and steps S2 and S3 are repeated.

[0049] The first adjusting member 211 and the second adjusting member 212 of the adjusting assembly 21 are sleeved with each other, and the first adjusting member 211 is provided with a sliding block at one end, which is slidingly arranged in the sliding rail and is sealingly arranged. The second adjusting member 212 is also provided with a sliding block at one end, which is slidingly arranged in the sliding rail while ensuring its sealing. Meanwhile, the other end of the second pipe 23 is also provided with a sliding rail to cooperate with its movement. The first pipe 22 is arranged in the adjusting assembly 21, and the first pipe 22 is connected with the second pipe 23 through the connecting ring 24. When the traction assembly 26 pulls, the second pipe 23 is separated from the connecting ring 24 and slides in the adjusting assembly 21.

[0050] When the water pipe module 2 is installed in the simulation box 1, the adjusting assembly 21 is adjusted to the position of the simulated leakage size, the water supply assembly 27 is opened, the water pipe module 2 is ensured to have no leakage phenomenon, and then the water supply assembly 27 is closed. Since the second grip 2121 is coupled with the soil in the simulation box 1, the soil pressure replaces the force of water on the crack in the actual pipeline rupture, and the process of gradual expansion of the pipeline crack is simulated. Therefore, under the action of seepage in the water pipe module 2, not only the water-soil action after the pipeline rupture is simulated, but also the process of gradual expansion of the pipeline crack is simulated. In addition, during the simulation process, the camera assembly 25 installed in the adjusting assembly 21 records the change process of the soil under the scouring of water flow, which provides guidance for the later study of the cavity formation mechanism.

[0051] Obviously, the above embodiments are only examples for clearly illustrating, and are not limited to the embodiments. For those skilled in the art, other different forms of changes or variations can be made on the basis of the above description. Here, all the embodiments need not and cannot be exhausted. The obvious changes or variations derived therefrom are still within the protection scope of the present application.

Claims

1. A device for simulating a ruptured pressurized water pipe in a dynamic water environment, characterized in that: include The simulation chamber has its internal space divided into a first chamber for water injection and a second chamber for filling with soil. A water pipe module is installed inside the simulation box. The water pipe module includes an adjustment component, a first pipe fitting, and a second pipe fitting. The second pipe fitting is connected to the adjustment component. The adjustment component is equipped with a camera component for recording soil changes. One end of the first pipe fitting is fitted inside the adjustment component and connected to the second pipe fitting. The other end is connected to a traction component for pulling the first pipe fitting. The first pipe fitting passes through the first cavity and is also connected to a water conveying component. The adjustment assembly includes a first adjustment member and a second adjustment member fitted with the first adjustment member, wherein the first adjustment member and the second adjustment member are rotatably connected to adjust the opening between the first adjustment member and the second adjustment member; The traction assembly includes a connecting pipe, a driving bevel gear, a driven bevel gear, and a traction rope. One end of the connecting pipe is provided with an end cap, and the other end is connected to the first pipe fitting. The driving bevel gear is provided on the end cap, and the driven bevel gear meshes with the driving bevel gear. A driving gear shaft is provided on the central shaft of the driving bevel gear, and a drive rod is connected to the end of the driving gear shaft. A driven gear shaft is provided on the central shaft of the driven bevel gear, and the driven bevel gear is connected to the connecting pipe through the driven gear shaft. One end of the traction rope is wound on the driven gear shaft, and the other end is connected to the first pipe fitting.

2. The device for simulating a ruptured pressurized water pipe and inducing a cavity under simulated dynamic water conditions, as described in claim 1, is characterized in that: The simulation chamber is equipped with several water-proof plates and baffles, and the simulation chamber is divided into a first cavity and a second cavity by the baffles.

3. The device for simulating a ruptured pressurized water pipe and inducing a cavity under simulated dynamic water conditions, as described in claim 1, is characterized in that: The first adjustment component is provided with a first grip, and the second adjustment component is provided with a second grip, which extends through and out of the bottom of the simulation box.

4. The device for simulating a ruptured pressurized water pipe and inducing a cavity under simulated dynamic water conditions, as described in claim 3, is characterized in that: A pad is provided at the bottom of the simulation box, and the second grip passes through the pad and the bottom of the simulation box in sequence. A rotation groove for the second grip to rotate is provided at the bottom of the simulation box.

5. The device for simulating a ruptured pressurized water pipe and inducing a cavity under simulated dynamic water conditions, as described in claim 1, is characterized in that: The first pipe fitting and the second pipe fitting are connected by a connecting ring.

6. The device for simulating a ruptured pressurized water pipe and inducing a cavity under simulated dynamic water conditions, as described in claim 1, is characterized in that: The water supply assembly includes a water supply pipe and a booster pump. The booster pump is installed on the water supply pipe, and the output end of the water supply pipe is connected to the first pipe fitting.

7. The device for simulating a ruptured pressurized water pipe and inducing a cavity under simulated dynamic water conditions according to claim 6, characterized in that: The camera assembly is connected to an industrial control computer, and the industrial control computer is connected to the booster pump.

8. A method for simulating a ruptured pressurized water pipe in a dynamic water environment to induce a cavity, characterized in that: The simulation, using the apparatus described in any one of claims 1-7, for simulating a ruptured pressurized water pipe in a dynamic water environment to induce a cavity, includes the following steps: S1: Assemble the simulation box, and divide the first cavity and the second cavity inside the simulation box according to the simulation requirements. Install the leak-proof water pipe module inside the simulation box. S2: Adjust the opening between the first and second adjustment components to simulate the leakage size, fill the second cavity of the simulation box with soil, and inject water into the first cavity. After a dynamic water flow path is formed in the simulation box, the water supply component is turned on for a set time. The first water pipe is pulled by the traction component to move a set distance in the adjustment component. After the water flow at the output end of the second water pipe decreases, the water supply component is controlled to ensure that the seepage of the adjustment component continuously scours the soil. S3: After the simulation is completed, disconnect the water supply component, reset the first water pipe, and record the formation of the cavity through the camera.

9. The method for inducing cavitation by a ruptured pressurized water pipe in a simulated dynamic water environment according to claim 8, characterized in that: When different working conditions need to be simulated, change the position of the first cavity, the opening and closing between the first and second adjusting parts, and repeat steps S2 and S3.

Images