A test model and method for determining the erosion resistance of an intelligent honeycomb restraint system

Abstract

The present application relates to the technical field of water environment ecological management, in particular to a test model and method for determining the anti-scouring property of an intelligent honeycomb restraint system, wherein a pressure sensor is arranged on the bottom plate of a water storage device, and the data of the pressure sensor is transmitted to a control device, which is used to control the water inlet of a water supply device and the water outlet of a water outlet electromagnetic valve or directly control the water supply amount of the water supply device to control the flow rate of the water outlet of the water storage device. The control principle and method can intelligently control the water flow rate, ensure the accuracy of the test data, save manpower and material resources, and save test time. Compared with manually controlling the water level to control the flow rate of the sluice device, the present application is more convenient and accurate.

Description

Technical Field

[0001] This invention relates to the field of water environment ecological governance technology, specifically to an experimental model and method for measuring the erosion resistance of an intelligent honeycomb constraint system. Background Technology

[0002] In the past, traditional riverbank protection projects have mostly used traditional revetments. Traditional revetments are often limited by basic functions such as flood control, water diversion, and navigation. They usually use hard materials such as masonry blocks, rigid retaining walls, and cast-in-place concrete retaining walls. While meeting the requirements of bank stability and flood control safety, they have neglected the ecological functions of the river.

[0003] In recent years, ecological revetment design has required consideration of diverse requirements in river management, including bank slope safety and stability, ecological protection, and green landscape creation. Ecological revetment engineering materials are mostly plants or natural engineering materials, primarily ensuring the interconnection of water, soil, and vegetation, striving to achieve the goals of preserving the water-soil adaptive channel, using natural revetment materials, and rationalizing investment. With the increasing awareness of environmental protection, ecological revetments have been applied more and more widely.

[0004] The rapid development of materials science has greatly expanded the range of materials available for ecological revetments. Honeycomb confinement systems, as an emerging geosynthetic material, possess characteristics such as permeability, soil conservation, soil stabilization, and improved load-bearing capacity, leading to their increasingly widespread application in ecological revetment engineering. However, large-scale promotion is not yet feasible, and the erosion resistance of honeycomb cells within the honeycomb confinement system has not been fully studied and proven. Therefore, it is necessary to establish experimental models to study the erosion resistance of honeycomb cells, providing a basis for slope design in water environment management projects using honeycomb confinement systems. Traditional experimental models are mostly manually controlled; this study combines information technology equipment to achieve intelligent control of the experimental model, improving model control accuracy and experimental efficiency. Simultaneously, considering water resource reuse, a water recycling device is added to the experimental model to conserve water resources. Summary of the Invention

[0005] This invention addresses the shortcomings of existing technologies by providing an intelligent experimental model and method for determining the erosion resistance of a honeycomb constraint system. In particular, it provides a basis for slope design in water environment management projects using honeycomb constraint systems.

[0006] The technical problem solved by this invention can be achieved by the following technical solutions:

[0007] An experimental model for determining the erosion resistance of an intelligent honeycomb confinement system includes a water storage device, a drain device, a return water tank, a water supply device, and a control device. The inlet of the drain device is connected to the outlet of the water storage device, and the outlet of the drain device is connected to the water supply device. A pressure sensor is installed at the bottom of the water storage device, and a water level observation tube is installed on the water storage device. A drain outlet is installed at the bottom of the water storage device, and a drain pipe is connected to the drain outlet. The other end of the drain pipe is connected to the water supply device, and a drain solenoid valve is connected to the drain pipe. The water supply device, the drain solenoid valve, and the pressure sensor are electrically connected to the control device. The outlet of the water storage device is located on the side wall of the water storage device and is a certain distance from the bottom of the water storage device.

[0008] Furthermore, the water supply device includes a collection pool, a water pump, and an inlet pipe. The water pump is installed in the collection pool, and the outlet of the water pump is connected to the inlet of the water storage device through the inlet pipe. The water pump is also electrically connected to the control device.

[0009] Furthermore, the water supply device includes a collection pool, a water pump, and an inlet pipe. The water pump is installed in the collection pool, and the outlet of the water pump is connected to the inlet of the water storage device through the inlet pipe. An inlet solenoid valve is installed on the inlet pipe, and the inlet solenoid valve is electrically connected to the control device.

[0010] Furthermore, a connecting structure is provided between the return water pool and the collection water pool to connect the two, and the other end of the drain pipe is connected to the connecting structure.

[0011] Furthermore, the bottom of the trough device is connected to multiple support frames, the bottom of the outlet end of the trough device is also connected to a first lifting structure, and the bottom of the inlet end of the trough device is also connected to a rotating shaft structure, the bottom of the rotating shaft structure being fixedly connected to the support frames.

[0012] Furthermore, the trough device includes a transition section, a test section, and a tail section, which are fixedly connected in sequence. The transition section and the tail section have the same structure. A groove is provided in the test section, and a honeycomb constraint system disk is placed in the groove.

[0013] Furthermore, the outlet of the water storage device is provided with a pressure section, and the pressure section and the discharge tank device are sealed and connected by a flexible component. The pressure section is an integrally formed cylindrical structure with open ends, wherein the end face structure of the pressure section is the same as the end face structure of the transition section, and the two are sealed and connected by a flexible component.

[0014] Furthermore, the transition section, test section, and tail section are all groove structures with openings at both ends and the top. The bottom of the transition section, test section, and tail section is provided with a horizontal surface section and an adjustable surface section connected to one side of the horizontal surface section. The other side of the horizontal surface section is vertically connected to a first water-blocking surface section. One side of the horizontal surface section at the bottom of the transition section, test section, and tail section is movably connected to one side of the adjustable surface section. The side of the adjustable surface section at the bottom of the transition section, test section, and tail section that extends outward is provided with a second water-blocking surface section that is vertically connected to the horizontal surface. The top height of the second water-blocking surface section is consistent with that of the first water-blocking surface section. The adjustable surface section at the bottom of the test section has a groove for placing the honeycomb constraint system disk.

[0015] Furthermore, one side of the horizontal surface section and one side of the adjustable surface section are hinged together by a hinge system. The hinge system includes a first panel and a second panel, which are rotatably connected by a pivot. The first panel and the second panel are respectively fixed to the bottom of the horizontal surface section and the adjustable surface section by screws. The connection between the horizontal surface section and the adjustable surface section is sealed with sealant. A second lifting structure is fixedly connected to one side wall of the second water-blocking surface section on the transition section, the test section and the tail section, and the bottom of the second lifting structure is connected to the support frame.

[0016] A method for testing an intelligent honeycomb constraint system's erosion resistance using a test model, comprising the following steps:

[0017] S1: The test involves installing a pressure sensor on the bottom plate of the water storage device and transmitting the data from the pressure sensor to the control device. The control device is used to control the opening and closing of the inlet solenoid valve and the outlet solenoid valve. The pressure sensor monitors the water level of the water storage device in real time. Based on the difference between the real-time pressure of the pressure sensor and the designed pressure value parameter, the opening degree of the inlet solenoid valve and the outlet solenoid valve is adjusted.

[0018] At the start of the test, the water pump is turned on, and the inlet solenoid valve is opened and the outlet solenoid valve is closed via the control device.

[0019] When the real-time pressure of the pressure sensor at the bottom of the water storage device is higher than the design pressure parameter, the control device automatically increases the opening of the drain solenoid valve while keeping the inlet solenoid valve stationary, thereby lowering the water level of the water storage device by increasing the drain flow. If the pressure of the pressure sensor at the bottom of the water storage device is still higher than the design pressure parameter after the drain solenoid valve is fully open, the control device automatically decreases the opening of the inlet solenoid valve, thereby reducing the inlet flow and increasing the drain flow to lower the water level of the water storage device. During the test, if the real-time pressure of the pressure sensor at the bottom of the water storage device is lower than the design pressure parameter, the control device automatically decreases the opening of the drain solenoid valve while keeping the inlet solenoid valve stationary, thereby raising the water level of the water storage device by reducing the drain flow. If the water level of the water storage device is still lower than the design pressure parameter after the drain solenoid valve is fully closed, the control device automatically increases the opening of the inlet solenoid valve, thereby increasing the inlet flow and decreasing the drain flow to raise the water level of the water storage device.

[0020] At the end of the test, the water pump is turned off, and the drain solenoid valve and the inlet solenoid valve are opened through the control device.

[0021] S2: The test involves installing a pressure sensor on the bottom plate of the water storage device and transmitting the pressure sensor data to the control device. The control device is used to control the operating frequency of the water pump. The pressure sensor monitors the water level of the water storage device in real time and adjusts the operating frequency of the water pump based on the difference between the real-time pressure and the design pressure parameter of the pressure sensor in the control device.

[0022] At the start of the test, the water pump operates at maximum power, and the control device automatically closes the drain solenoid valve. When the real-time pressure of the pressure sensor at the bottom of the water storage device is higher than the design pressure parameter, the control device automatically reduces the operating frequency of the water pump, thereby reducing the output flow rate of the water pump and lowering the water level in the water storage device. When the real-time pressure of the pressure sensor at the bottom of the water storage device is lower than the design pressure parameter, the control device automatically increases the operating frequency of the water pump, thereby increasing the output flow rate of the water pump and raising the water level in the water storage device.

[0023] At the end of the test, turn off the water pump and open the drain solenoid valve to empty the water storage device.

[0024] The beneficial effects of this invention are:

[0025] Compared with existing technologies, this invention conducts simulation tests under different test conditions, observes and records the damage degree of the honeycomb restraint system disk under each test condition, analyzes the influence of various factors on the scour resistance of the honeycomb restraint system, determines the optimal configuration combination of multiple factors with the strongest scour resistance, and then applies the determined optimal configuration combination of multiple factors with the best scour resistance to the design of ecological revetment projects, promoting the application of honeycomb restraint systems in water environment management projects and saving the cost of water environment management projects.

[0026] This invention incorporates a pressure sensor on the base plate of the water storage device, transmitting its data to a control device. The control device controls the opening of the inlet and outlet solenoid valves of the water supply device, or directly controls the water supply volume, thereby controlling the flow rate at the outlet of the water storage device. This control principle and method enable intelligent control of water flow velocity, ensuring the accuracy of experimental data while saving manpower, resources, and testing time. It is more convenient and accurate than manually controlling the water level and flow rate of the discharge tank. Attached Figure Description

[0027] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0028] Figure 1 This is a side view schematic diagram of the overall structure of an embodiment of the experimental model of the present invention.

[0029] Figure 2 This is a side view of the overall structure of another embodiment of the experimental model of the present invention.

[0030] Figure 3 This is a schematic diagram of the pressurized section structure of the present invention.

[0031] Figure 4 This is a schematic diagram of the structure of the pressurized section of the present invention with a grid installed.

[0032] Figure 5 This is a schematic diagram of the cross-sectional end face structure of the transition section and tail section of the present invention.

[0033] Figure 6 This is a schematic diagram of the cross-sectional end face structure of the test section of the present invention.

[0034] Figure 7 This is a schematic diagram of the overall structure of the trough device of the present invention, which has a second lifting structure on one side.

[0035] Figure 8 This is a schematic diagram of the hinge structure of the present invention.

[0036] Figure 9 This is a side view of the rotating shaft structure of the present invention.

[0037] Figure 10 This is a top view of the rotating shaft structure of the present invention.

[0038] Figure 11 This is a schematic diagram of the first lifting structure of the present invention.

[0039] Figure 12This is a schematic diagram showing the relationship between the water level and flow velocity in the water storage device (i.e., the water tank) of the present invention. In the figure: 1-Water storage device, 2-Drainage tank device, 3-Return water tank, 4-Collection tank, 5-Water pump, 6-Inlet solenoid valve, 7-Water level observation pipe, 8-Pressed section, 9-Rotating shaft structure, 10-Support frame, 11-First lifting structure, 12-Transition section, 13-Test section, 14-Tail section, 15-Groove, 16-Rotating shaft, 17-Horizontal surface section, 18-Adjustable surface section, 19-First water-blocking surface section, 20-Second water-blocking surface section 21-Articulated system, 22-Screw, 23-Honeycomb restraint system disc, 24-Second lifting structure, 25-Bearing seat, 26-Base, 27-Shaft, 28-Base, 29-Reversing structure, 30-Screw, 31-Nut, 32-Bearing beam, 33-Drive shaft, 34-Roller, 35-Connecting structure, 36-Drain pipe, 37-Drain solenoid valve, 38-Pressure sensor, 39-Inlet pipe, 40-Control device. Detailed Implementation

[0040] First, it should be noted that the terms used in the various embodiments of this invention are:

[0041] Water storage device 1 is used to simulate the upstream reservoir of the actual ecological revetment river channel. After the gate is opened, water can pass through the discharge channel device 2 at a certain flow rate.

[0042] The chute device 2 is used to simulate the actual ecological revetment, where the actual ecological revetment is mostly sloping on both sides. In order to control the scale of the model and save water resources, the chute device 2 in the model of this invention only simulates the sloping revetment on one side of the actual river channel. A honeycomb constraint system is set on the sloping revetment. Through multiple simulation tests on the scour condition of the honeycomb constraint slope under different working conditions of various influencing factors, the influence law of each factor on the scour resistance is analyzed, and the optimal configuration combination of multiple factors with the best scour resistance is determined.

[0043] The return water tank 3 is used to recover the water that flows through the discharge tank device 2.

[0044] Water collection pool 4 is used to store water and ensure that the water storage device 1 has sufficient water.

[0045] The interconnected structure is used to connect the return water tank 3 and the collection water tank 4 to form a water circulation structure, which can save water resources.

[0046] The control device 40 is used to intelligently control the water flow rate entering the water storage device 1, so that the water flow speed entering the discharge tank device 2 is always maintained at the required water flow speed value. The control device 40 is existing technology and is a PLC programmable controller. The PLC programmable controller includes a PID module that can input values. The PID module is also existing technology.

[0047] The first lifting structure 11 is used to adjust the bottom longitudinal dimension of the discharge device 2 so that the model meets the requirements of uniform flow and ensures that the flow velocity of the discharge device 2 is consistent from the inlet end to the outlet end.

[0048] The second lifting structure 24 is used to adjust the tilt angle of the sloping revetment on one side of the chute device 2 to conduct simulation tests on the scouring performance of different slope ratios.

[0049] The honeycomb confinement system disk 23 described in the following embodiments is the main structure simulating the honeycomb confinement ecological slope in an actual river channel. The honeycomb geogrid is fixed in a rectangular trench. According to different working conditions, the honeycomb geogrid is filled with corresponding graded filler and turf of different ages is cultivated to form a honeycomb confinement system disk model corresponding to each working condition. Then, the honeycomb confinement system disk model of each working condition is placed in the honeycomb confinement system ecological revetment erosion resistance test model of the present invention for simulation test.

[0050] The following will provide a detailed description of the experimental model and method for determining the erosion resistance of an intelligent honeycomb constraint system provided by the present invention through several specific embodiments.

[0051] Example 1:

[0052] Reference Figure 1 An experimental model for determining the erosion resistance of an intelligent honeycomb confinement system includes a water storage device 1, a drain device 2, a return water tank 3, a water supply device, and a control device 40. The inlet of the drain device 2 is connected to the outlet of the water storage device 1, and the outlet of the drain device 2 is connected to the water supply device. A pressure sensor 38 is installed at the bottom of the water storage device 1. A water level observation tube 7 is installed on the water storage device 1. A drain outlet is installed at the bottom of the water storage device 1, and a drain pipe 36 is connected to the drain outlet. The other end of the drain pipe 36 is connected to the water supply device, and a drain solenoid valve 37 is connected to the drain pipe 36. The water supply device, the drain solenoid valve 37, and the pressure sensor 38 are electrically connected to the control device 40. The outlet of the water storage device 1 is located on the side wall of the water storage device 1 and is a certain distance away from the bottom of the water storage device 1.

[0053] In the above embodiments, various influencing factors of the erosion resistance performance of the honeycomb restraint system are obtained; an ecological revetment test model of the honeycomb restraint system is established; based on the obtained influencing factors of the erosion resistance performance of the honeycomb restraint system, the test conditions (test groups) are determined, and simulation tests are conducted according to the determined test conditions; the influence law of each factor on the erosion resistance of the honeycomb restraint system is analyzed, and the multi-factor optimal configuration combination with the best erosion resistance is determined.

[0054] First, honeycomb confinement system disks 23 are prepared according to the determined test conditions. Then, the honeycomb confinement system disks 23 corresponding to different conditions are placed into the drainage device 2. Water is injected into the water storage device 1 from the collection pool 4 by the variable frequency water pump 5. The outlet water velocity is controlled by the water tank level. Simulation tests are conducted on the honeycomb confinement system under different conditions. Then, the degree of damage to the honeycomb confinement system disks 23 after scouring is observed and recorded. Through screening and analysis, the multi-factor optimized configuration combination with the best scour resistance is determined. Then, the determined multi-factor optimized configuration combination with the best scour resistance is applied to the design of ecological revetment engineering, which promotes the promotion and application of honeycomb confinement system in water environment management engineering and saves the cost of water environment management engineering.

[0055] The principle of water flow velocity control in this embodiment is as follows:

[0056] S1: In the experiment, a pressure sensor 38 was installed on the bottom plate of the water storage device 1, and the data of the pressure sensor 38 was transmitted to the control device 40. The control device 40 was used to control the water inlet and outlet solenoid valves 37 of the water supply device. The pressure sensor 38 monitored the water level of the water storage device 1 in real time. Based on the difference between the real-time pressure of the pressure sensor 38 and the designed pressure value parameter, the water inlet and outlet solenoid valves 37 of the water supply device were adjusted to control the water flow rate.

[0057] S2: In the experiment, a pressure sensor 38 is installed on the bottom plate of the water storage device 1, and the data of the pressure sensor 38 is transmitted to the control device 40. The control device 40 is used to control the water supply of the water supply device. The pressure sensor 38 monitors the water level of the water storage device 1 in real time, and adjusts the water supply of the water supply device according to the difference between the real-time pressure and the design pressure parameter of the pressure sensor 38 in the control device 40.

[0058] The outlet of the water storage device 1 is located on the side wall of the water storage device 1 and at a certain distance above the bottom of the water storage device 1. In the actual test, the outlet is located 1.0m above the bottom of the water storage device 1 to reduce the interference of the water inlet of the water storage device 1 on the flow state of the water inlet.

[0059] In the above embodiments, the pressure sensor 38 uses an existing sensor. As long as it can achieve the function in this invention, it is within the protection scope of this invention. The above control principle and method can intelligently control the water flow speed to ensure the accuracy of the test data. At the same time, it saves manpower, material resources and test time. It is more convenient and accurate than manually controlling the water level and controlling the flow rate of the discharge tank device 2.

[0060] Example 2:

[0061] Reference Figure 1Furthermore, the water supply device includes a water collection tank 4, a water pump 5, and an inlet pipe 39. The water pump 5 is installed in the water collection tank 4, and the outlet of the water pump 5 is connected to the inlet of the water storage device 1 through the inlet pipe 39. The water pump 5 is electrically connected to the control device 40.

[0062] Furthermore, the water pump 5 is a variable frequency water pump, and the variable frequency water pump is electrically connected to the control device 40.

[0063] The principle of water flow velocity control in this embodiment is as follows:

[0064] At the start of the test, water pump 5 operates at maximum power, and control device 40 automatically closes the drain solenoid valve 37. When the real-time pressure of the pressure sensor 38 at the bottom of the water storage device 1 is higher than the design pressure parameter, control device 40 automatically reduces the operating frequency of water pump 5, thereby reducing the output flow of water pump 5 and lowering the water level of water storage device 1. When the real-time pressure of the pressure sensor 38 at the bottom of the water storage device 1 is lower than the design pressure parameter, control device 40 automatically increases the operating frequency of water pump 5, thereby increasing the output flow of water pump 5 and raising the water level of water storage device 1.

[0065] At the end of the test, turn off water pump 5 and open the drain solenoid valve 37 to empty the water storage device 1.

[0066] The structure and method of this embodiment control the water level in the water storage device 1. The control structure is simple and the water flow velocity is accurately controlled in actual use.

[0067] Example 3:

[0068] Reference Figure 2 Furthermore, the water supply device includes a collection pool 4, a water pump 5, and an inlet pipe 39. The water pump 5 is installed in the collection pool 4, and the outlet of the water pump 5 is connected to the inlet of the water storage device 1 through the inlet pipe 39. An inlet solenoid valve 6 is installed on the inlet pipe 39, and the inlet solenoid valve 6 is electrically connected to the control device 40.

[0069] The principle of water flow velocity control in this embodiment is as follows:

[0070] At the start of the test, water pump 5 is turned on, and the inlet solenoid valve 6 is opened and the outlet solenoid valve 37 is closed via control device 40.

[0071] When the real-time pressure of the pressure sensor 38 at the bottom of the water storage device 1 is higher than the design pressure parameter, the control device 40 automatically increases the opening of the drain solenoid valve 37 while keeping the inlet solenoid valve 6 stationary, thereby lowering the water level of the water storage device 1 by increasing the drain flow. If the pressure of the pressure sensor 38 at the bottom of the water storage device 1 is still higher than the design pressure parameter after the drain solenoid valve 37 is fully opened, the control device 40 automatically decreases the opening of the inlet solenoid valve 6, thereby reducing the inlet flow and increasing the drain flow to lower the water level of the water storage device 1. During the test, if the real-time pressure of the pressure sensor 38 at the bottom of the water storage device 1 is lower than the design pressure parameter, the control device 40 automatically decreases the opening of the drain solenoid valve 37 while keeping the inlet solenoid valve 6 stationary, thereby raising the water level of the water storage device 1 by reducing the drain flow. If the water level of the water storage device 1 is still lower than the design pressure parameter after the drain solenoid valve 37 is fully closed, the control device 40 automatically increases the opening of the inlet solenoid valve 6, thereby increasing the inlet flow and decreasing the drain flow to raise the water level of the water storage device 1.

[0072] At the end of the test, turn off the water pump 5 and open the water discharge solenoid valve 37 and the water inlet solenoid valve 6 through the control device 40.

[0073] In this embodiment, the water level in the water storage device 1 is adjusted by controlling the water inlet solenoid valve 6 through the control device 40, which saves the cost of the water pump 5 and can also accurately control the water flow rate.

[0074] Example 4:

[0075] Reference Figure 1 and Figure 2 Furthermore, a connecting structure is provided between the return water pool 3 and the collection water pool 4 to connect the two, and the other end of the drain pipe 36 is connected to the connecting structure.

[0076] In the above embodiment, a connecting structure 35 is provided between the return water tank 3 and the return water tank 4 to connect the two, which is conducive to the recycling of water and saves water resources. The connecting structure 35 can be a culvert or a connecting pipe. The drain pipe 36 at the bottom of the water storage device 1 can be connected to the connecting structure 35.

[0077] Example 5:

[0078] Reference Figure 1 , Figure 2 , Figure 9 and Figure 10 Furthermore, the bottom of the draining device 2 is connected to multiple support frames 10, the bottom of the outlet end of the draining device 2 is also connected to a first lifting structure 11, and the bottom of the inlet end of the draining device 2 is also connected to a rotating shaft structure 9, the bottom of the rotating shaft structure 9 being fixedly connected to the support frame 10.

[0079] Furthermore, the rotating shaft structure 9 includes a bearing seat 25, a base 26, and a shaft 27. The base 26 is fixedly connected to the support frame 10. Two bearing seats 25 are arranged on the upper surface of the base 26 along the direction perpendicular to the water flow. The two bearing seats 25 are connected by a shaft 27. The bottom of the water inlet end of the drain device 2 is fixedly connected to the shaft 27 between the two bearing seats 25.

[0080] Reference Figure 11 Furthermore, the first lifting structure 11 includes a base 28, a reversing structure 29, a lead screw 30, a nut 31, a load-bearing beam 32, a drive shaft 33, and a rotating wheel 34. There are two bases 28, and a reversing structure 29 is fixedly connected to each of the two bases 28. The drive shaft 33 passes through the two reversing structures 29, and one end of the drive shaft 33 is connected to the rotating wheel 34. A lead screw 30 is connected to each of the two reversing structures 29 in the vertical direction, and a nut 31 is connected to each of the two lead screws 30. The load-bearing beam 32 is fixedly connected between the two nuts 31. The bottom of the water outlet of the drain device 2 is located on the load-bearing beam 32.

[0081] In the above embodiment, the support frame 10 is used to support the trough device 2. The first lifting structure 11 connected to the bottom of the outlet end of the trough device 2 is used to adjust the slope of the bottom plate of the trough device 2 so that the flow velocity of the water flowing through the trough device 2 from the inlet end to the outlet end is consistent, ensuring that the water flow in the trough is a uniform flow in an open channel. Thus, the flow velocity of the trough device 2 from the inlet end to the outlet end is consistent, ensuring that the flow velocity through the honeycomb constraint system disk is consistent throughout the simulation test, and ensuring the accuracy of the test data. The rotating shaft structure 9 is used to adjust the slope of the bottom plate of the trough device 2. (i.e., longitudinal slope) and can also support the water inlet of the trough device 2. Specifically, a platform 26 is fixedly connected to the support frame 10, and two bearing seats 25 are fixedly connected to the upper surface of the platform 26 along the direction perpendicular to the water flow. The two bearing seats 25 are connected by a shaft 27, and the bottom of the water inlet of the trough device 2 is fixedly connected to the shaft 27. When adjusting the first lifting structure 11, the water inlet of the trough device 2 will move up and down around the shaft 27, thereby adjusting the longitudinal slope of the entire trough device 2 and ensuring that the water flow in the trough device 2 is a uniform flow in an open channel.

[0082] In the above embodiment, the base 28 is used to support the water outlet of the drain device 2. At the same time, the reversing structure 29 is fixed on the two bases 28. The reversing structure 29 adopts a worm gear structure. Then, the lead screw 30 is connected to the reversing structure 29. Nuts 31 are connected to both lead screws 30. The bearing beam 32 is fixedly connected between the two nuts 31. The bottom of the water outlet of the drain device 2 is located on the bearing beam 32. When it is necessary to adjust the slope of the bottom plate of the entire drain device 2, the rotating wheel 34 is rotated. The rotating wheel 34 drives the transmission shaft 33 to rotate. The transmission shaft 33 drives the lead screw 30 to rotate, so that the nuts 31 on the lead screw 30 move up and down on the lead screw 30. In turn, the drain device 2 on the bearing beam 32 moves up and down to adjust the inclination to meet the test requirements. The slope of the drain device 2 is adjusted by this structure, which is simple to operate and saves time and effort.

[0083] Example 6:

[0084] Reference Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 and Figure 8 Furthermore, the trough device 2 includes a transition section 12, a test section 13, and a tail section 14. The transition section 12, the test section 13, and the tail section 14 are fixedly connected in sequence. The transition section 12 and the tail section 14 have the same structure. A groove 15 is provided in the test section 13, and a honeycomb constraint system disk 23 is placed in the groove 15.

[0085] Furthermore, the outlet of the water storage device 1 is provided with a pressure section 8, and the pressure section 8 is sealed to the discharge tank device 2 through a flexible component. The pressure section 8 is an integrally formed cylindrical structure with open ends. The end face structure of the pressure section 8 is the same as the end face structure of the transition section 12, and the two are sealed to each other through a flexible component.

[0086] Furthermore, the transition section 12, test section 13, and tail section 14 are all groove 15 structures with openings at both ends and the top. The bottom of the transition section 12, test section 13, and tail section 14 are provided with a horizontal surface section 17 and an adjustable surface section 18 connected to one side of the horizontal surface section 17. The other side of the horizontal surface section 17 is vertically connected to a first water-blocking surface section 19. One side of the horizontal surface section 17 at the bottom of the transition section 12, test section 13, and tail section 14 is movably connected to one side of the adjustable surface section 18. The side of the adjustable surface section 18 at the bottom of the transition section 12, test section 13, and tail section 14 extending outward is provided with a second water-blocking surface section 20 perpendicular to the horizontal plane. The top height of the second water-blocking surface section 20 is consistent with that of the first water-blocking surface section 19. The adjustable surface section 18 at the bottom of the test section 13 has a groove 15 for placing the honeycomb restraint system disk 23.

[0087] Furthermore, one side of the horizontal surface segment 17 and one side of the adjustable surface segment 18 are hinged by a hinge system 21. The hinge system 21 includes a first panel and a second panel. The first panel and the second panel are rotatably connected by a pivot 16. The first panel and the second panel are respectively fixed to the bottom of the horizontal surface segment 17 and the adjustable surface segment 18 by screws 22. The connection between the horizontal surface segment 17 and the adjustable surface segment 18 is also sealed with sealant.

[0088] Furthermore, a second lifting structure 24 is fixedly connected to one side wall of the second water-blocking surface section 20 on the transition section 12, test section 13 and tail section 14 respectively, and the bottom of the second lifting structure 24 is connected to the support frame 10.

[0089] In the above embodiment, the trough device 2 is provided with a transition section 12, a test section 13, and a tail section 14. The transition section 12 is used to adjust the water flow pattern, so that the water gradually transitions to a uniform flow. The honeycomb constraint system disk 23 for different working conditions is placed in the groove 15 in the test section 13. The height of the honeycomb constraint system disk is the depth of the groove 15. After the honeycomb constraint system disk is placed, the disk surface is parallel to the groove surface of the tail section 14 of the transition section 12, ensuring the water flow pattern in the entire trough device 2.

[0090] The outlet of the water storage device 1 is connected to the pressurized section 8, which is used to control the flow pattern of the water entering the inclined channel device 2. The flexible seal between the pressurized section 8 and the discharge device 2 is used to ensure that there is no leakage. The flexible seal can be made of flexible rubber or putty to block the gaps. The pressurized section 8 is an integrally formed cylindrical structure with open ends. The bottom and sides are consistent with the bottom and sides of the transition section 12, further ensuring the flow pattern of the water entering the transition section 12, the test section 13 and the tail section 14, and ensuring the reliability of the test.

[0091] The transition section 12, test section 13, and tail section 14 are all groove structures with openings at both ends and the top, used to simulate open channel waterways. The horizontal surface section 17 is used to simulate the bottom of an actual river channel, and the adjustable surface section 18 is used to simulate the slope of an actual river channel. The adjustable surface section 18 and the horizontal surface section 17 can be fixedly connected to create multiple slopes with different slope ratios, or they can be connected movably to adjust the slope ratio of different slopes. Preferably, the adjustable surface section 18 and the horizontal surface section 17 are connected movably for easy operation during testing. The slope ratio of the test slope can be adjusted by adjusting the included angle between the adjustable surface section 18 and the horizontal surface section 17 according to the requirements of different slope ratios. In actual tests, slope ratios of 1:3 and 1:2 were selected for testing.

[0092] The pressurized section 8 is an integral structure. The bottom horizontal section 17 is fixedly connected to the inclined surface 18, the top surface 16, and the vertical first water-blocking surface 19 in sequence. The pressurized section 8 can be made according to the different slope ratios determined by the adjustable surface section 18 in the discharge device 2 during actual testing. The first water-blocking surface section 19 is used to block water on one side of the horizontal section 17, and the second water-blocking surface section 20 is used to block water on one side of the adjustable surface section 18. The top height of the second water-blocking surface section 20 is consistent with that of the first water-blocking surface section 19.

[0093] The outlet of the water storage device 1 is a pressurized outlet. To quickly adjust the pressurized flow to a uniform open channel flow, a pressurized section 8 is installed at the front end of the chute device 2. The pressurized section 8 and the inclined channel device 2 have the same cross-sectional area, both being trapezoidal. Simultaneously, to adjust the uniformity of the water flow, a longitudinal grid is installed within the trapezoidal inlet section of the pressurized section 8 during the model design. (See [reference]). Figure 4 This structure controls the stability of the water flow pattern.

[0094] When the adjustable surface section 18 and the horizontal surface section 17 are movably connected, a hinge system 21 is set at the bottom of the connection between the horizontal surface section 17 and the adjustable surface section 18. Then, the first panel and the second panel are fixed to the adjustable surface section 18 and the horizontal surface section 17 by screws 22, so that the adjustable surface section 18 and the horizontal surface section 17 can be adjusted around the pivot 16. The gap between the adjustable surface section 18 and the horizontal surface section 17 is sealed with sealant to ensure that there is no water leakage after the slope ratio of the adjustable surface section 18 is adjusted.

[0095] To adjust the adjustable surface section 18, a horizontal boss is provided on the outer side of the second water-retaining surface section 20 on the transition section 12, test section 13, and tail section 14. The horizontal boss is connected to the second lifting structure 24. The second lifting structure 24 can be a hydraulic rod, a screw, or a lead screw. In this embodiment, a screw is used. See Figure 7 A rectangular screw hole is provided on the horizontal boss, which is connected to the screw rod through a movable nut. The long side of the rectangular screw hole is perpendicular to the water flow direction to ensure that the adjustable surface section 18 can move horizontally and vertically during rotation. The bottom of the screw rod is connected to the support frame by a fixing screw. Multiple support frames 10 can be set at the bottom of the discharge device 2. The second lifting structure 24 on the transition section 12, test section 13 and tail section 14 is fixed on the bottom support frame. The adjustable surface section 18 is rotated and fixed by the second lifting structure 24, thereby adjusting the slope ratio of the test slope. This structure has a simple slope ratio adjustment operation and high test efficiency.

[0096] Example 7:

[0097] The design of the honeycomb constraint system ecological revetment erosion resistance test model of the present invention meets the following conditions:

[0098] The scope of this invention is not affected by whether the water storage device 1 is a steel plate water tank or a water tank made of other materials.

[0099] (1) Model scale

[0100] The overall model was designed according to the gravity similarity criterion. Based on the prototype's flow characteristics, geometric dimensions, and considering the experimental site and equipment, the model's geometric scale is: L r =1, then the scale of the other hydraulic elements is:

[0101] Flow scale: Q r =L r 2.5 =1.0;

[0102] Velocity scale: V r =L r 0.5 =1.0;

[0103] Time scale: T r =L r 0.5 =1.0.

[0104] (2) Boundary conditions

[0105] 1) Model bank protection form

[0106] In this invention, the ecological revetment can be applied to gentle slope natural revetments, sloping artificial revetments, and composite artificial revetments in terms of cross-sectional shape. In the test section 13, a honeycomb restraint system disk is used to simulate the revetment slope, and different fillers are filled in the honeycomb restraint system geogrid and turf is planted.

[0107] 2) Types of model bank slopes

[0108] The bank slope types used were general cohesive soil slopes, and three types of fillers were used as style constraint system fillers: loess, gravelly loess, etc. During the test, erosion tests were conducted with and without turf revetment.

[0109] 3) Planar shape of the model revetment

[0110] In the experiment, a straight inclined channel was used in the model design to facilitate the control of the scouring flow velocity.

[0111] 4) Height of the model revetment

[0112] Since the model scale is 1:1 and the maximum flow velocity in the test is 5 m / s, the test requires a large flow rate when the model cross-section is designed to be large. In order to balance the required bank height and the maximum flow rate that the test pump can provide, the bank height is designed to be 26 cm in the model design.

[0113] 5) Slope of the model revetment

[0114] The ecological revetment in this invention is mainly a gentle slope revetment in terms of structural type, with the slope design of the revetment being 1:2 and 1:3, that is, the slope ratio of the adjustable section 18 is 1:2 and 1:3.

[0115] 6) Length of the model revetment

[0116] The experimental model mainly consists of a steel plate water tank 1, a pressurized section 8, and a trough device 2 (transition section 12, test section 13, and tail section 14). The pressurized section 8 is 1.2m long, and the trough device 2 is 10m long in total. Among them, the transition section 12 is 6.5m long, the test section 13 is 2m long, and the tail section 14 is 1.5m long. In order to facilitate flow control, the revetment shape of the trough section of the trough device 2 remains consistent.

[0117] 7) Materials used in the model

[0118] The turf variety and age used in this model test are the same as those in the prototype; the filler in the honeycomb constraint system disk 23 is the same as that in the prototype.

[0119] (3) Model Design: In the experimental model, the water storage device 1 is a steel plate water tank with a height of 3.5m, a length and width of 3m, and a maximum volume of approximately 31.5m³. 3 The pressurized section is designed to be 1.2m long, and the transition section is 6.5m long. To facilitate observation of the water flow pattern, both the pressurized section and the transition section are made of plexiglass. The test section is 2m long, and the tail section is 1.5m long. To avoid the impact of the honeycomb system disk load on the test section's discharge channel and the potential damage that the packing material may cause to the test section and tail section, the test section and tail section are made of steel plates.

[0120] Based on the model design parameters, the experimental model requires a maximum flow rate of approximately 1410 m³ / h. 3 / h.

[0121] The pressure inlet pipe has a diameter of 0.5m and is welded from a spiral steel pipe with a thickness of 0.8cm.

[0122] The water tank drain pipe has a diameter of 0.1m and is welded from a steel pipe with a thickness of 0.5cm.

[0123] (4) Model flow rate control

[0124] This experimental model controls the flow velocity in the discharge channel by controlling the water level in the tank, based on the relationship between water level and flow velocity (see Table 1). After the model was installed, before the experiment, the water level in the steel tank was adjusted and the flow velocity at the inlet section of the discharge channel was measured to obtain the relationship curve between the water level in the steel tank and the flow velocity at the discharge channel pressure inlet. Figure 12 During commissioning, the flow rate was measured using a handheld flow meter, and the water level was read using the water level observation tube 7.

[0125] Table 1. Results of water level and flow rate determination in the water tank (water tank bottom plate is at 0m water level).

[0126] serial number Water level in the tank (m) Flow velocity (m / s) 1 1.060 0.89 2 1.108 1.13 3 1.175 1.45 4 1.250 1.78 5 1.358 2.25 6 1.458 2.70 7 1.588 3.12 8 1.698 3.39 9 1.932 3.88 10 2.068 4.15 11 2.195 4.40 12 2.480 4.93 13 2.638 5.21

[0127] During the model design, to control the water flow velocity in the test section, the longitudinal slope of the spillway bottom plate was adjusted to ensure uniform flow in an open channel. A rotating shaft was installed at the bottom of the spillway inlet, and the shaft was fixed on a truss. The downstream end of the truss was controlled by a first lifting structure 11. During the test, the elevation of the spillway tail was adjusted by the first lifting structure 11 to change the slope of the spillway bottom plate, thereby controlling the water flow pattern.

[0128] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention, and all such changes are within the protection scope of the technology.

[0129] It should be noted that all directional indications in the embodiments of the present invention are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0130] The technical solutions of the various embodiments can be combined with each other, but must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

Claims

1. An experimental model for determining the erosion resistance of an intelligent honeycomb constraint system, characterized by: The device includes a water storage device (1), a drain device (2), a return water tank (3), a water supply device, and a control device (40). The inlet of the drain device (2) is connected to the outlet of the water storage device (1), and the outlet of the drain device (2) is connected to the water supply device. A pressure sensor (38) is installed at the bottom of the water storage device (1). A water level observation pipe (7) is installed on the water storage device (1). A drain outlet is installed at the bottom of the water storage device (1), and a drain pipe (36) is connected to the drain outlet. The other end of the drain pipe (36) is connected to the water supply device. A drain solenoid valve (37) is connected to the drain pipe (36). The water supply device, the drain solenoid valve (37), and the pressure sensor (38) are electrically connected to the control device (40). The outlet of the water storage device (1) is located on the side wall of the water storage device (1) and is a certain distance from the bottom of the water storage device (1). The water supply device includes a collection pool (4), a water pump (5), and an inlet pipe (39). The water pump (5) is installed in the collection pool (4). The outlet of the water pump (5) is connected to the inlet of the water storage device (1) through the inlet pipe (39). The water pump (5) is electrically connected to the control device (40). The trough device (2) includes a transition section (12), a test section (13) and a tail section (14). The transition section (12), the test section (13) and the tail section (14) are fixedly connected in sequence. The transition section (12) and the tail section (14) have the same structure. A groove (15) is provided in the test section (13), and a honeycomb restraint system disk (23) is placed in the groove (15). The outlet of the water storage device (1) is provided with a pressure section (8). The pressure section (8) and the discharge tank device (2) are sealed together by a flexible component. The pressure section (8) is an integrally formed cylindrical structure with open ends. The end face structure of the pressure section (8) is the same as the end face structure of the transition section (12), and the two are sealed together by a flexible component. The transition section (12) is used to adjust the flow pattern of the water so that the water gradually transitions to a uniform flow. The pressurized section (8) is used to control the flow pattern of water entering the trough device (2); the outlet of the water storage device (1) is a pressurized outlet. In order to adjust the pressurized flow to a uniform flow in the open channel as soon as possible, a pressurized section (8) is set at the front end of the trough device (2), and the flow cross section of the pressurized section (8) is consistent with that of the trough device (2), both being trapezoidal cross sections. A longitudinal grid is set in the trapezoidal inlet cross section of the pressurized section (8); The pressurized section (8) is made according to the different slope ratios determined by the adjustable surface section (18) in the trough device (2) during the actual test; The experiment installed a pressure sensor (38) on the bottom plate of the water storage device (1) and transmitted the data of the pressure sensor (38) to the control device (40). The control device (40) was used to control the water inlet and outlet solenoid valves (37) of the water supply device. The pressure sensor (38) monitored the water level of the water storage device (1) in real time. According to the difference between the real-time pressure of the pressure sensor (38) and the designed pressure value parameter, the water inlet and outlet solenoid valves (37) of the water supply device were adjusted to control the speed of water flow. The water supply device includes a collection pool (4), a water pump (5), and an inlet pipe (39). The water pump (5) is installed in the collection pool (4). The outlet of the water pump (5) is connected to the inlet of the water storage device (1) through the inlet pipe (39). An inlet solenoid valve (6) is installed on the inlet pipe (39). The inlet solenoid valve (6) is electrically connected to the control device (40).

2. The test model for determining the erosion resistance of an intelligent honeycomb constraint system according to claim 1, characterized in that: A connecting structure is provided between the return water pool (3) and the collection pool (4) to connect the two, and the other end of the drain pipe (36) is connected to the connecting structure.

3. The test model for determining the erosion resistance of an intelligent honeycomb constraint system according to claim 1, characterized in that: The bottom of the trough device (2) is connected to multiple support frames (10), the bottom of the outlet end of the trough device (2) is also connected to a first lifting structure (11), and the bottom of the inlet end of the trough device (2) is also connected to a rotating shaft structure (9), the bottom of the rotating shaft structure (9) is fixedly connected to the support frame (10).

4. The test model for determining the erosion resistance of an intelligent honeycomb constraint system according to claim 1, characterized in that: The transition section (12), test section (13), and tail section (14) are all groove structures with openings at both ends and the top. The bottom of the transition section (12), test section (13), and tail section (14) is provided with a horizontal surface section (17) and an adjustable surface section (18) connected to one side of the horizontal surface section (17). The other side of the horizontal surface section (17) is vertically connected to a first water-blocking surface section (19). The horizontal surface at the bottom of the transition section (12), test section (13), and tail section (14) One side of section (17) is movably connected to one side of adjustable surface section (18). The adjustable surface section (18) at the bottom of the transition section (12), test section (13) and tail section (14) has a second water-blocking surface section (20) that extends outward and is perpendicular to the horizontal plane. The second water-blocking surface section (20) is at the same height as the top of the first water-blocking surface section (19). The adjustable surface section (18) at the bottom of the test section (13) has a groove (15) for placing the honeycomb restraint system disk (23).

5. The test model for determining the erosion resistance of an intelligent honeycomb constraint system according to claim 4, characterized in that: The horizontal section (17) is hinged to the adjustable section (18) via a hinge system (21). The hinge system (21) includes a first panel and a second panel. The first panel and the second panel are rotatably connected by a pivot (16). The first panel and the second panel are fixed to the bottom of the horizontal section (17) and the adjustable section (18) respectively by screws (22). The connection between the horizontal section (17) and the adjustable section (18) is sealed with sealant. A second lifting structure (24) is fixedly connected to one side wall of the second water-blocking section (20) on the transition section (12), the test section (13) and the tail section (14). The bottom of the second lifting structure (24) is connected to the support frame (10).

6. A method for testing an intelligent honeycomb restraint system's erosion resistance using a test model, comprising the intelligent honeycomb restraint system erosion resistance testing model as described in any one of claims 1-5, characterized in that: Including the following methods S1: The test sets a pressure sensor (38) on the bottom plate of the water storage device (1) and transmits the data of the pressure sensor (38) to the control device (40). The control device (40) is used to control the opening and closing of the inlet solenoid valve (6) and the outlet solenoid valve (37). The pressure sensor (38) monitors the water level of the water storage device (1) in real time. According to the difference between the real-time pressure of the pressure sensor (38) and the designed pressure value parameter, the opening degree of the inlet solenoid valve (6) and the outlet solenoid valve (37) is adjusted. At the start of the test, the water pump (5) is turned on, the inlet solenoid valve (6) is turned on through the control device (40), and the outlet solenoid valve (37) is turned off. When the real-time pressure of the pressure sensor (38) at the bottom of the water storage device (1) is higher than the design pressure parameter, the control device (40) automatically increases the opening of the drain solenoid valve (37) while keeping the inlet solenoid valve (6) stationary, thereby reducing the water level of the water storage device (1) by increasing the drain flow rate. If the pressure of the pressure sensor (38) at the bottom of the water storage device (1) is still higher than the design pressure parameter after the drain solenoid valve (37) is fully opened, the control device (40) automatically decreases the opening of the inlet solenoid valve (6), thereby reducing the inlet flow rate and increasing the drain flow rate to reduce the water level of the water storage device (1). During the test, when the real-time pressure of the pressure sensor (38) at the bottom of the water storage device (1) is lower than the design pressure parameter, the control device (40) automatically reduces the opening of the drain solenoid valve (37) while keeping the inlet solenoid valve (6) stationary, thereby increasing the water level of the water storage device (1) by reducing the drain flow rate. If the water level of the water storage device (1) is still lower than the design pressure parameter after the drain solenoid valve (37) is fully closed, the control device (40) automatically increases the opening of the inlet solenoid valve (6), thereby increasing the inlet flow rate and reducing the drain flow rate to increase the water level of the water storage device (1). When the test is over, turn off the water pump (5) and open the drain solenoid valve (37) and the inlet solenoid valve (6) through the control device (40). S2: The experiment sets a pressure sensor (38) on the bottom plate of the water storage device (1) and transmits the data of the pressure sensor (38) to the control device (40). The control device (40) is used to control the operating frequency of the water pump (5). The pressure sensor (38) monitors the water level of the water storage device (1) in real time. Based on the difference between the real-time pressure and the design pressure parameter of the pressure sensor (38) in the control device (40), the operating frequency of the water pump (5) is adjusted. At the start of the test, the water pump (5) operates at maximum power, and the control device (40) automatically closes the drain solenoid valve (37). When the real-time pressure of the pressure sensor (38) at the bottom of the water storage device (1) is higher than the design pressure parameter, the control device (40) automatically reduces the operating frequency of the water pump (5), thereby reducing the output flow of the water pump (5) and lowering the water level of the water storage device (1). When the real-time pressure of the pressure sensor (38) at the bottom of the water storage device (1) is lower than the design pressure parameter, the control device (40) automatically increases the operating frequency of the water pump (5), thereby increasing the output flow of the water pump (5) and raising the water level of the water storage device (1). At the end of the test, turn off the water pump (5) and open the drain solenoid valve (37) to empty the water storage device (1).

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