An experimental device for ecological restoration of bank slope erosion resistance under multi-source hydraulic coupling.

Abstract

This invention relates to an experimental device for ecological restoration slope erosion resistance under multi-source hydraulic coupling, comprising an uncovered water tank, multiple hydraulic rods, multiple prefabricated slope modules, an inlet tank, an outlet tank, a water level control valve, a water level control outlet, a water level control regulating pipe, a first outlet valve, a first outlet, a second outlet valve, a second outlet, an outlet pipe, a first inlet valve, a first inlet, a second inlet valve, a second inlet, an inlet pipe, a first water pump, a circulating water tank, and a rain shower mechanism. Through the combined action of multiple components, it simulates the erosion resistance of different riverbank ecological slopes under multi-source hydraulic coupling conditions, providing strong guidance for studying the instability mechanism of riverbank ecological slopes, achieving safe design of riverbank ecological slopes, and ensuring the safety of riverbank slope engineering construction. Furthermore, this invention allows for experiments with various slope protection vegetation and different slope protection angles, offering significant practical benefits.

Description

Technical Field

[0001] This invention relates to the field of river erosion experimental technology, specifically to an ecological restoration bank slope erosion resistance test device under multi-source hydraulic coupling. Background Technology

[0002] Ecological bank slopes are a new type of bank protection technology designed and developed to address the significant damage that traditional masonry, cement, and concrete bank slopes cause to the aquatic and terrestrial ecological environment. Ecological bank slopes, while ensuring slope stabilization safety, also consider the environmental and ecological effects of the project, achieving sustainable development.

[0003] Currently, research on the erosion resistance of river ecological slopes is mainly limited to software modeling and actual field observation. However, existing modeling is theoretical and cannot simulate complex real rivers, nor is it intuitive. Actual field observation is time-consuming and costly, failing to meet the needs of engineering design. To better simulate the real-world erosion resistance of river ecological slopes under multi-source hydraulic coupling conditions, improve the efficiency of erosion resistance research, and reduce costs, there is an urgent need for an experimental device to simulate the erosion resistance of ecological restoration slopes under multi-source hydraulic coupling. This device would investigate the stability problems of ecological slopes caused by multi-source hydraulic coupling erosion, reveal the structural drawbacks of ecological slopes, and ultimately improve engineering safety. Summary of the Invention

[0004] To address the shortcomings of existing technologies, the purpose of this invention is to provide an experimental device for ecological restoration slope erosion resistance under multi-source hydraulic coupling. This device is applicable to analyzing the erosion resistance of different river ecological slopes under multi-source hydraulic coupling conditions, filling the gap in the experimental field of simulating the erosion resistance of different river ecological slopes under multi-source hydraulic coupling conditions. It has a strong guiding role in studying the instability mechanism of river ecological slopes, realizing the safe design of river ecological slopes, and ensuring the safety of river slope engineering construction.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0006] An ecological restoration slope erosion resistance test device under multi-source hydraulic coupling includes an uncovered water tank, multiple hydraulic rods, multiple prefabricated slope modules, an inlet tank, an outlet tank, a water level control valve, a water level control outlet, a water level control regulating pipe, a first outlet valve, a first outlet, a second outlet valve, a second outlet, an outlet pipe, a first inlet valve, a first inlet, a second inlet valve, a second inlet, an inlet pipe, a first water pump, a circulating water tank, and a rain shower mechanism; wherein,

[0007] Multiple hydraulic rods are installed sequentially at intervals at the bottom of the uncovered water tank, and multiple prefabricated slope modules are arranged along the two sides of the uncovered water tank to form a river channel;

[0008] The inlet and outlet water tanks are installed at opposite ends of the uncovered water tank.

[0009] The water level control outlet is formed on the upper part of the water outlet tank wall. One end of the water level control regulating pipe is connected to the water level control outlet, and the water level control valve is installed at the water level control outlet.

[0010] The first outlet is formed on the lower part of the wall of the outlet tank, and the first outlet valve is installed at the first outlet; the second outlet is formed on the lower part of the wall of the inlet tank, and the second outlet valve is installed at the second outlet.

[0011] One end of the water outlet pipe is detachably connected to the first water outlet, and the other end is connected to the circulating water tank;

[0012] The first water inlet is formed on the side of the wall of the water inlet tank, and the first water inlet valve is installed at the first water inlet; the second water inlet is formed on the side of the wall of the water outlet tank, and the second water inlet valve is installed at the second water inlet;

[0013] One end of the inlet pipe is detachably connected to the first inlet, and the other end of the inlet pipe is connected to the first water pump; the first water pump is installed in the circulating water tank.

[0014] The rain shower mechanism is positioned above an uncovered trough to spray water and simulate rain.

[0015] Optionally, the rain shower mechanism includes a mounting frame, a water supply pipe, and multiple nozzles. The mounting frame is arranged above the uncovered water tank, the water supply pipe is mounted on the mounting frame, and the multiple nozzles are installed sequentially and at intervals on the water supply pipe.

[0016] Optionally, the water supply pipe can be extended in the same direction as the uncovered water tank.

[0017] Optionally, the ecological restoration bank slope erosion resistance test device also includes a filter storage tank and a filter screen. The filter screen is arranged in the middle of the filter storage tank, dividing the filter storage tank into two receiving chambers. The other end of the water level control pipe extends into one of the receiving chambers of the filter storage tank.

[0018] Optionally, the ecological restoration bank slope erosion resistance test device also includes a second water pump, which is installed on the other receiving chamber side of the filter water storage tank, and the inlet of the water supply pipe extends into the other receiving chamber and is connected to the second water pump.

[0019] Optionally, the uncovered water tank is made of multiple rubber-jointed blocks pieced together sequentially.

[0020] Optionally, the prefabricated slope module includes a module support, ecological vegetation, and erosion needles. A groove is formed in the middle of the module support, the ecological vegetation is placed in the groove to form a slope, and the erosion needles are vertically inserted into the ecological vegetation.

[0021] Optionally, the modular support includes a base plate, a vertical plate fixed to the base plate, a fixing buckle, two telescopic buckles, two slope frames, and a pivot. The inner side of the vertical plate is arc-shaped, making the groove an arc-shaped slot. The fixing buckle is installed on the outer side of the vertical plate for engaging with the edge of the uncovered water tank. The two slope frames are arranged on both sides of the base plate, and the two slope frames are fan-shaped. The fan centers of the two slope frames are rotatably connected to the base plate through the pivot. The fan-shaped edges of the two slope frames fit against the inner side of the vertical plate. The two telescopic buckles are fixed on both sides of the top of the vertical plate, and the two telescopic buckles can be operably engaged with the two slope frames.

[0022] Optionally, the erosion needle includes a needle cap and a monitoring rod, with the needle cap fixedly mounted on the top of the monitoring rod and stripes formed in the middle of the monitoring rod.

[0023] Optional, the needle cap is a bubble level.

[0024] The advantages of this invention are:

[0025] This invention presents an ecological restoration slope erosion resistance test device under multi-source hydraulic coupling. The device includes an uncovered water tank, multiple hydraulic rods, multiple prefabricated slope modules, an inlet tank, an outlet tank, water level control valves, water level control outlets, water level control regulating pipes, a first outlet valve, a first outlet, a second outlet valve, a second outlet, an outlet pipe, a first inlet valve, a first inlet, a second inlet valve, a second inlet, an inlet pipe, a first water pump, a circulating water tank, and a rain shower mechanism. Through the combined action of multiple components, the device simulates the erosion resistance of different riverbank ecological slopes under multi-source hydraulic coupling conditions. This provides strong guidance for studying the instability mechanism of riverbank ecological slopes, achieving safe design of riverbank ecological slopes, and ensuring the safety of riverbank slope engineering construction. Furthermore, this invention allows for simultaneous testing of multiple types of experiments, including different slope vegetation and slope angles, resulting in significant practical benefits. Attached Figure Description

[0026] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0027] Figure 1 This is a perspective view of the ecological restoration slope erosion resistance test device of the present invention;

[0028] Figure 2 This is a perspective view of the ecological restoration bank slope erosion resistance test device of the present invention without the rain shower mechanism;

[0029] Figure 3 This is a top view of the components at the uncovered water tank of the present invention;

[0030] Figure 4 This is a schematic diagram of the rain shower mechanism of the present invention;

[0031] Figure 5 This is a schematic diagram of the component connection structure at the water inlet pipe and water outlet pipe of the present invention;

[0032] Figure 6 This is a structural schematic diagram of the prefabricated slope module of the present invention;

[0033] Figure 7 This is a schematic diagram of the module bracket of the present invention;

[0034] Figure 8 This is a schematic diagram of the erosion needle of the present invention.

[0035] The components include: 1. Open-top water tank; 2. Hydraulic rod; 3. Prefabricated slope module; 4. Mounting frame; 5. Sprinkler head; 6. Water supply pipe; 7. Water level control valve; 8. Water level control outlet; 9. First outlet valve; 10. First outlet; 11. First inlet valve; 12. First inlet; 13. Water level control regulating pipe; 14. Outlet pipe; 15. Inlet pipe; 16. First water pump; 17. Second water pump; 18. Circulating water tank; 19. Filter. 20. Water storage tank; 21. Filter screen; 22. Water inlet trough; 23. Rubber bonding block; 24. Erosion needle; 25. Ecological vegetation; 26. Computer; 27. Second water inlet valve; 28. Second water outlet valve; 29. ​​Second water outlet; 30. Water outlet trough; 31. Fixing buckle; 32. Telescopic buckle; 33. Vertical plate; 34. Slope frame; 35. Rotating shaft; 36. Base plate; 231. Bubble level; 232. Monitoring rod. Detailed Implementation

[0036] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0037] like Figure 1-8As shown in the figure, the ecological restoration slope erosion resistance test device under multi-source hydraulic coupling disclosed in this embodiment includes an uncovered water tank 1, multiple hydraulic rods 2, multiple prefabricated slope modules 3, an inlet tank 21, an outlet tank 30, a water level control valve 7, a water level control outlet 8, a water level control regulating pipe 13, a first outlet valve 9, a first outlet 10, a second outlet valve 28, a second outlet 29, an outlet pipe 14, a first inlet valve 11, a first inlet 12, a second inlet valve 26, a second inlet 27, an inlet pipe 15, a first water pump 16, a circulating water tank 18, and a rain shower mechanism.

[0038] The uncovered water tank 1 is composed of multiple rubber-bonded blocks 22 assembled sequentially, which can be bent and arranged into any shape to simulate complex river course. Multiple hydraulic rods 2 are installed at intervals at the bottom of the uncovered water tank 1. The lower part of the hydraulic rods 2 is not fixed against the ground, and the upper part of the hydraulic rods 2 is connected to the bottom of the uncovered water tank 1. The height of the uncovered water tank 1 can be changed by adjusting the height of the hydraulic rods 2, thereby forming slopes of different heights to simulate river environments at different elevations.

[0039] Furthermore, multiple prefabricated slope modules 3 are arranged along both sides of the uncovered water channel 1 to form a river channel; the prefabricated slope modules 3 can be fixed to the upper part of the uncovered water channel 1 through the interfaces on both sides of the uncovered water channel 1. The prefabricated slope module 3 includes a module support, ecological vegetation 24 and erosion needles 23. A groove is formed in the middle of the module support, the ecological vegetation 24 is placed in the groove and forms a slope surface, and the erosion needles 23 are vertically inserted into the ecological vegetation 24.

[0040] Furthermore, the module support in this embodiment includes a base plate 36, a vertical plate 33 fixed to the base plate 36, a fixing buckle 31, two telescopic buckles 32, two slope frames 34, and a rotating shaft 35. The inner side of the vertical plate 33 is arc-shaped, making the groove an arc-shaped groove. The fixing buckle 31 is installed on the outer side of the vertical plate 33 for engaging with the edge of the uncovered water tank 1. The two slope frames 34 are respectively arranged on both sides of the base plate 36. The two slope frames 34 are fan-shaped, and the fan centers of the two slope frames 34 are rotatably connected to the base plate 36 through the rotating shaft 35. The fan-shaped edges of the two slope frames 34 are in contact with the inner side of the vertical plate 33. The two telescopic buckles 32 are respectively fixed on both sides of the top of the vertical plate 33, and the two telescopic buckles 32 are operably abutting against the two slope frames 34.

[0041] Furthermore, the erosion needle 23 includes a needle cap and a monitoring rod 232. The needle cap is fixedly mounted on the top of the monitoring rod 232, and a striped scale is formed in the middle of the monitoring rod 232. The 0 mark in the middle of the monitoring rod 232 represents the insertion depth. The needle cap is a bubble level 231. After the erosion needle 23 is used, the bubble in the bubble level 231 is centered. A distance sensor can also be installed on the erosion needle 23 to obtain real-time data on soil erosion.

[0042] Furthermore, in this embodiment, the inlet tank 21 and the outlet tank 30 are respectively installed at both ends of the uncovered tank 1; the water level control outlet 8 is formed on the upper part of the tank wall of the outlet tank 30, one end of the water level control regulating pipe 13 is connected to the water level control outlet 8, and the water level control valve 7 is installed on the water level control outlet 8, controlling the water level control outlet 8. The first outlet 10 is formed on the lower part of the tank wall of the outlet tank 30, and the first outlet valve 9 is installed on the first outlet 10, controlling the first outlet 10. The first outlet valve 9 can adjust the water flow speed to simulate the real water flow conditions; the second outlet 29 is formed on the lower part of the tank wall of the inlet tank 21, and the second outlet valve 28 is installed on the second outlet 29, controlling the second outlet 29.

[0043] It is worth noting that in this embodiment, one end of the water outlet pipe 14 is detachably connected to the first water outlet 10, and the other end is connected to the circulating water tank 18.

[0044] Furthermore, in this embodiment, the first water inlet 12 is formed on the side of the wall of the water inlet tank 21, and the first water inlet valve 11 is installed on the first water inlet 12; the second water inlet 27 is formed on the side of the wall of the water outlet tank 30, and the second water inlet valve 26 is installed on the second water inlet 27, and the second water inlet 27 is controlled by the second water inlet valve 26.

[0045] It is worth noting that one end of the water inlet pipe 15 is detachably connected to the first water inlet 12, and the other end of the water inlet pipe 15 is connected to the first water pump 16; the first water pump 16 is installed in the circulating water tank 18, and the water pump realizes the flow of simulated river water, and the water circulation can save water resources in the process of continuously simulating river water.

[0046] It is easy to understand that when one end of the inlet pipe 15 is detachably connected to the first inlet 12, one end of the outlet pipe 14 is detachably connected to the first outlet 10. And when one end of the inlet pipe 15 is detachably connected to the second inlet 27, one end of the outlet pipe 14 is detachably connected to the second outlet 29, thereby changing the direction of the simulated water flow.

[0047] Furthermore, in this embodiment, the rain shower mechanism is arranged above the uncovered water tank 1 to spray water to simulate rain. Specifically, the rain shower mechanism includes a mounting frame 4, a water supply pipe 6, and multiple nozzles 5. The mounting frame 4 is arranged above the uncovered water tank 1, the water supply pipe 6 is mounted on the mounting frame 4, and the multiple nozzles 5 are sequentially and spaced apart on the water supply pipe 6. The extension direction of the water supply pipe 6 is the same as the extension direction of the uncovered water tank 1.

[0048] It is worth noting that the ecological restoration bank slope erosion resistance test device also includes a filter storage tank 19, a filter screen 20, and a second water pump 17. The filter screen 20 is arranged in the middle of the filter storage tank 19, dividing the filter storage tank 19 into two receiving chambers. The other end of the water level control pipe 13 extends into one receiving chamber of the filter storage tank 19. The second water pump 17 is installed on the other receiving chamber side of the filter storage tank 19, and the inlet of the water supply pipe 6 extends into the other receiving chamber and is connected to the second water pump 17. The filter storage tank 19 is connected to the uncovered water tank 1 through the water level control pipe 13, so that the water can be discharged in time when the water level in the uncovered water tank 1 reaches a certain height. The water level in the uncovered water tank 1 can also be discharged through the second outlet 29 when the water level drops.

[0049] The rain shower mechanism in this embodiment is used to artificially rain down a simulated riverbank slope. The water supply pipe 6 draws water from the filter storage tank 19 through the second water pump 17 to supply water to the nozzle 5. The water discharged from the uncovered water tank 1 through the water level control water regulating pipe 13 can be reused through the filter screen 20. The rain shower mechanism controls the water pressure supplied by the water supply pipe 6 to ensure uniform rainfall and adjust the rainfall intensity.

[0050] It is worth noting that, in this embodiment, all valves, nozzles, and water pumps are electrically connected to the computer 25, and the computer 25 controls the start and stop of each valve, nozzle, and water pump.

[0051] The experiment using the ecological restoration bank erosion resistance test device under multi-source hydraulic coupling in this embodiment specifically includes the following steps:

[0052] Step 1: Before conducting the ecological restoration slope erosion resistance test under simulated multi-source hydraulic coupling, assemble all structural components, connect all electronic components to the power supply system, and test the test device and the working status of each structural component. In advance, purge the air from this rainfall simulation system and fill the system with water.

[0053] Step 2: Add simulated river water into the device. Stop adding water when the water level reaches the required level. The filter storage tank 19 and the circulating water tank 18 are filled with a certain amount of water. The inlet pipe 15 and the outlet pipe 14 are used to purge air.

[0054] Step 3: Turn on the computer 25 control system, input the required rainfall intensity, and ensure that the water pressure of each sprinkler head 55 is consistent to achieve a constant change in rainfall intensity;

[0055] Step 4: Adjust the height of hydraulic rod 2 according to the required water flow intensity. Water enters through the second inlet 27 via the first water pump 16, the first outlet 10, and the water level control outlet 8 to control the flow rate.

[0056] Step 5: Begin the experiment, observe the changes in the erosion needle 23 using observation instruments, and record the results.

[0057] Step 6: When the water level needs to be lowered or the test is over, open the second outlet valve 28. The simulated river water solution in the uncovered water tank 1 enters the filter storage tank 19 through the second outlet 29. Close the second outlet valve 28 when the aqueous solution drops to the target water level or is completely discharged.

[0058] Step 7: Disassemble the prefabricated slope module 3, and record the changes in the morphology of the prefabricated slope module 3, the survival status of the ecological vegetation 24, and the erosion resistance of the ecological slope in different areas.

[0059] In the accompanying drawings of this embodiment, the same or similar reference numerals correspond to the same or similar components. In the description of this application, it should be understood that if terms such as "upper," "lower," "left," and "right" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, they are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the accompanying drawings are only for illustrative purposes and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0060] The above are merely preferred embodiments of this application and are not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A test device for ecological restoration of bank slope erosion resistance under multi-source hydraulic coupling, characterized in that, It includes an uncovered water tank, multiple hydraulic rods, multiple prefabricated slope modules, an inlet tank, an outlet tank, a water level control valve, a water level control outlet, a water level control regulating pipe, a first outlet valve, a first outlet, a second outlet valve, a second outlet, an outlet pipe, a first inlet valve, a first inlet, a second inlet valve, a second inlet, an inlet pipe, a first water pump, a circulating water tank, and a rain shower mechanism; among which, Multiple hydraulic rods are sequentially and spaced apart at the bottom of the uncovered water tank, and multiple prefabricated slope modules are arranged along the two sides of the uncovered water tank to form a river channel; The inlet tank and the outlet tank are respectively installed at both ends of the uncovered tank; The water level control outlet is formed on the upper part of the wall of the water outlet tank, one end of the water level control regulating pipe is connected to the water level control outlet, and the water level control valve is installed at the water level control outlet. The first water outlet is formed on the lower part of the wall of the water outlet tank, and the first water outlet valve is installed at the first water outlet; the second water outlet is formed on the lower part of the wall of the water inlet tank, and the second water outlet valve is installed at the second water outlet. One end of the water outlet pipe is detachably connected to the first water outlet, and the other end is connected to the circulating water tank; The first water inlet is formed on the side of the wall of the water inlet tank, and the first water inlet valve is installed at the first water inlet; the second water inlet is formed on the side of the wall of the water outlet tank, and the second water inlet valve is installed at the second water inlet; One end of the water inlet pipe is detachably connected to the first water inlet, and the other end of the water inlet pipe is connected to the first water pump; the first water pump is installed in the circulating water tank. The rain spray mechanism is arranged above the uncovered water tank to spray water to simulate rain; The prefabricated slope module includes a module support, ecological vegetation, and erosion needles. A groove is formed in the middle of the module support, the ecological vegetation is placed in the groove to form a slope, and the erosion needles are vertically inserted into the ecological vegetation. The module support includes a base plate, a vertical plate fixed to the base plate, a fixing buckle, two telescopic buckles, two slope frames, and a rotating shaft. The inner side of the vertical plate is arc-shaped, making the groove an arc-shaped groove. The fixing buckle is installed on the outer side of the vertical plate for engaging with the edge of the uncovered water tank. The two slope frames are respectively arranged on both sides of the base plate. The two slope frames are fan-shaped, and the fan centers of the two slope frames are rotatably connected to the base plate through the rotating shaft. The fan-shaped edges of the two slope frames are in contact with the inner side of the vertical plate. The two telescopic buckles are respectively fixed on both sides of the top of the vertical plate, and the two telescopic buckles are operable to abut against the two slope frames.

2. The ecological restoration bank slope erosion resistance test device as described in claim 1, characterized in that, The rain shower mechanism includes a mounting frame, a water supply pipe, and multiple nozzles. The mounting frame is arranged above the uncovered water tank, the water supply pipe is mounted on the mounting frame, and the multiple nozzles are sequentially and spaced apart on the water supply pipe.

3. The ecological restoration bank slope erosion resistance test device as described in claim 2, characterized in that, The water supply pipe extends in the same direction as the uncovered water tank.

4. The ecological restoration bank slope erosion resistance test device as described in claim 2, characterized in that, It also includes a water storage tank and a filter screen. The filter screen is arranged in the middle of the water storage tank, dividing the water storage tank into two receiving chambers. The other end of the water level control pipe extends into one of the receiving chambers of the water storage tank.

5. The ecological restoration bank slope erosion resistance test device as described in claim 4, characterized in that, It also includes a second water pump, which is installed on the other receiving chamber side of the filter water storage tank, and the inlet of the water supply pipe extends into the other receiving chamber and is connected to the second water pump.

6. The ecological restoration bank slope erosion resistance test device as described in claim 1, characterized in that, The uncovered water tank is composed of multiple rubber-bonded blocks joined together in sequence.

7. The ecological restoration bank slope erosion resistance test device as described in claim 1, characterized in that, The erosion needle includes a needle cap and a monitoring rod. The needle cap is fixedly disposed on the top of the monitoring rod, and the monitoring rod has stripes formed in the middle.

8. The ecological restoration bank slope erosion resistance test device as described in claim 7, characterized in that, The needle cap is a bubble level.

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