A river bank collapse simulation test device

Abstract

The utility model discloses a riverway bank collapse simulation test equipment belongs to simulation test technical field, and it is inside be provided with two glass baffle, and the medium filling area between two glass baffle, and the overflow area between glass baffle and glass box side wall, riverway simulation area is set up in medium filling area's top middle part, a plurality of effluent holes are set up in the front wall of glass box and are communicated with riverway simulation area, a plurality of overflow holes are set up in the two side walls of glass box and are communicated with overflow area, a plurality of pressure sensor are installed on the back wall of glass box, the water level height in this scheme can be adjusted overflow area and riverway simulation area, carry out the contrast test of different submerged river water level and underground water level, and under the pressure monitoring of pressure sensor, can analyze the bank collapse tendency under different underground water level and surface water level combination condition, thereby can make accurate and effective response and protection measures.

Description

Technical Field

[0001] This utility model relates to the field of simulation testing technology, and more specifically, to a riverbank collapse simulation testing device. Background Technology

[0002] Bank collapse is the result of the accumulation of riverbank stability risks, characterized by its suddenness and significant destructive potential. It can affect the safety of flood control projects, threaten the lives and property of the public, disrupt the normal operation of critical infrastructure, and impede navigation. The factors influencing bank collapse are highly complex, primarily including hydrodynamic conditions, riverbed boundary conditions, and human activities. With the erosion at the toe of the bank slope, the stress distribution of the riverbank soil changes, leading to a redistribution of stress within the slope and a decrease in the overall stability of both the above-water and underwater toes, ultimately resulting in bank collapse.

[0003] Riverbank collapse is the result of the interaction between river flow and riverbank soil. It belongs to both the lateral evolution process of riverbank in riverbed evolution and the slope stability problem in soil mechanics. Once a bank collapse occurs, it will cause very serious damage to riverside structures, people and agriculture.

[0004] Factors influencing riverbank collapse include water flow, riverbank composition, groundwater, and slope morphology. Groundwater factors, in particular, influence riverbank erosion through hydrostatic pressure, hydrodynamic pressure, and the softening effect of water. In rivers that have been operating at high water levels for extended periods, rapid flood discharge during the flood season causes groundwater levels to fluctuate more slowly than the river's surface. This creates free seepage surfaces on the slopes, leading to a drop in river level and weakened soil resistance. Consequently, soil particles at the riverbank slope and water surface are the first to break down, moving upwards to the seepage surfaces and eventually collapsing in chunks, resulting in a collapsed bank.

[0005] Currently, domestic research on riverbank collapse mainly focuses on the scouring of river channels by external water flow. The mechanism of bank collapse is still unclear, and there are no effective prevention and response measures for bank collapse. There is a lack of corresponding control experiments, and it is impossible to analyze the tendency of bank collapse under different combinations of groundwater and river water levels.

[0006] Therefore, it is necessary to provide a riverbank collapse simulation test device to solve the above-mentioned technical problems. Utility Model Content

[0007] The purpose of this invention is to provide a riverbank collapse simulation test device to solve the above-mentioned technical problems.

[0008] To achieve the above objectives, the present invention adopts the following technical solution:

[0009] A riverbank collapse simulation test device, comprising:

[0010] A glass box has two glass baffles inside, with multiple permeation holes evenly distributed on the glass baffles. The space between the two glass baffles is a medium filling area, and the space between the glass baffles and the side wall of the glass box is an overflow area.

[0011] The river channel simulation area is located at the top center of the medium-filled area;

[0012] Multiple outflow holes are provided on the front wall of the glass box and communicate with the river simulation area to adjust the water level in the river simulation area.

[0013] Multiple overflow holes are provided on both sides of the glass box and communicate with the overflow area, for adjusting the water level in the overflow area;

[0014] Multiple pressure sensors are installed on the rear wall of the glass box to monitor changes in water head pressure within the medium filling area.

[0015] Furthermore, the outlet hole and the overflow hole are respectively provided with a first connecting pipe and a second connecting pipe, and the first connecting pipe and the second connecting pipe are equipped with a detachable water outlet pipe and a detachable sealing plug.

[0016] A water supply assembly, connected to the glass box, is used to supply water to the simulated river area or the overflow area.

[0017] Furthermore, the water supply component includes:

[0018] The water supply pipe has one end connected to a water tank outside the pump body, and the other end extends into the simulated river area or the overflow area and is connected to a distributor. The other end of the distributor is equipped with multiple drainage heads.

[0019] Furthermore, the glass box is equipped with a snap-fit ​​component, the snap-fit ​​component is provided with a support plate, the support plate is equipped with a detachable pressure plate, and both the pressure plate and the support plate are provided with a limiting groove adapted to the water supply pipe.

[0020] Furthermore, the support plate is provided with a locking screw hole, and the pressure plate is provided with a fastening bolt that is adapted to the thread of the locking screw hole.

[0021] Furthermore, a sand-separating mesh is provided at the adjacent ends of the two glass baffles, and the sidewalls and bottom walls of the river channel simulation area are separated from the medium-filled area by the sand-separating mesh.

[0022] Furthermore, the rear wall of the glass box is provided with a plurality of pressure measuring holes corresponding to the pressure sensor, the inner wall of the pressure measuring hole is provided with an internal thread that matches the thread on the pressure sensor, and the probe end of the pressure sensor extends into the interior of the medium filling area.

[0023] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0024] This scheme uses overflow orifices to maintain a predetermined water level within the overflow area, thus adjusting the water level height within the overflow area to achieve the effect of a comparative test of groundwater levels in different subsurface flow zones. Similarly, using outflow orifices to maintain a predetermined water level within the simulated river channel area, the water level height within the simulated river channel area can be adjusted to achieve the effect of a comparative test of river water levels in different subsurface flow zones. Through corresponding comparative simulation tests and pressure monitoring by pressure sensors, the tendency of bank collapse under different combinations of groundwater and surface water levels can be analyzed. This allows for accurate and effective response and protection measures to be taken, reducing the serious damage that sudden bank collapses can cause to riverside structures, people, and agriculture, demonstrating high practicality. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure of the riverbank collapse simulation test equipment of this utility model;

[0026] Figure 2 for Figure 1 Enlarged structural diagram at point A in the diagram;

[0027] Figure 3 This is a schematic diagram of the glass box of this utility model from the rear view.

[0028] Figure 4 for Figure 3 A structural diagram showing the state before the installation of the pressure sensor, water outlet pipe, and sealing plug;

[0029] Figure 5 This is a schematic diagram of the structure of each component of the snap-fit ​​connector of this utility model.

[0030] Explanation of the labels in the diagram:

[0031] 1. Glass box; 2. Glass baffle; 3. Permeation hole; 4. Medium filling area; 5. Overflow area; 6. River simulation area; 7. Outflow hole; 8. Overflow hole; 9. Pressure sensor; 10. Water outlet pipe; 11. Sealing plug; 12. Water supply assembly; 121. Water supply pipe; 122. Distributor; 13. Clip-on component; 14. Support plate; 15. Pressure plate; 16. Restriction groove; 17. Locking screw hole; 18. Fastening bolt; 19. Sand screen; 20. Pressure measuring hole; 21. First connecting pipe; 22. Second connecting pipe; 23. Fixing hole. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0033] Please see Figure 1-5 A riverbank collapse simulation test device, comprising:

[0034] The glass box 1 has two glass baffles 2 inside. Multiple permeation holes 3 are evenly opened on the glass baffles 2. The space between the two glass baffles 2 is the medium filling area 4, and the space between the glass baffles 2 and the side wall of the glass box 1 is the overflow area 5.

[0035] River channel simulation area 6 is located at the top center of medium filling area 4;

[0036] Multiple outflow holes 7 are opened on the front wall of the glass box 1 and communicate with the river simulation area 6, and are used to adjust the water level in the river simulation area 6.

[0037] Multiple overflow holes 8 are provided on both sides of the glass box 1 and communicate with the overflow area 5, for adjusting the water level in the overflow area 5;

[0038] Multiple pressure sensors 9 are installed on the rear wall of the glass box 1 to monitor changes in water head pressure within the medium filling area 4.

[0039] When in use, the undisturbed soil is placed in the medium-filled area 4 between the two glass baffles 2 of the glass box 1 to simulate the riverbank soil structure of the subsurface flow zone.

[0040] Water is added to the overflow area 5 between the glass baffle 2 and the side wall of the glass box 1, and the overflow hole 8 is used for water discharge. The water in the overflow area 5 flows out from the overflow hole 8 at the same time, thereby simulating the flow of groundwater in the subsurface flow zone through the overflow area 5. Furthermore, by setting overflow holes 8 at different heights for water discharge, that is, by using the overflow holes 8 to maintain a predetermined water level in the overflow area 5, the water level in the overflow area 5 can be adjusted, thereby achieving a control test of groundwater levels in different subsurface flow zones.

[0041] The overflow area 5 and the medium filling area 4 are separated by a glass baffle 2, and the permeation holes 3 on the glass baffle 2 allow groundwater in the overflow area 5 to permeate into the simulated soil structure in the medium filling area 4, thus achieving the infiltration effect of groundwater in the subsurface flow zone.

[0042] A river simulation area 6 is opened at the top center of the medium filling area 4. Water is added to the river simulation area 6 and then discharged through the outlet hole 7 on the front wall of the glass box 1, which can simulate the surface water of the flowing subsurface flow zone. Furthermore, by setting outlet holes 7 at different heights for water discharge, the predetermined water level in the river simulation area 6 can be maintained through the outlet holes 7, thereby adjusting the water level in the river simulation area 6 and achieving a comparative test of the water level in different subsurface flow zones.

[0043] By installing multiple pressure sensors 9 on the rear wall of the glass box 1, the head pressure in the medium filling area 4 can be read during the test, which means that the head pressure changes at different locations in the medium filling area 4 can be monitored in real time.

[0044] By maintaining a predetermined water level in the overflow area 5 through the overflow orifice 8, the water level in the overflow area 5 can be adjusted to achieve the effect of a comparative test of groundwater levels in different subsurface flow zones. Similarly, by maintaining a predetermined water level in the simulated river channel area 6 through the outflow orifice 7, the water level in the simulated river channel area 6 can be adjusted to achieve the effect of a comparative test of river channel water levels in different subsurface flow zones. Through corresponding comparative tests and pressure monitoring by the pressure sensor 9, the tendency of bank collapse under different combinations of groundwater and surface water levels can be analyzed. This allows for accurate and effective response and protection measures to be taken, reducing the serious damage that sudden bank collapses can cause to riverside structures, people, and agriculture. This approach has high practicality.

[0045] The glass box 1 and glass baffle 2 in this solution are both made of plexiglass, which is highly malleable and not easily broken. Leaks can be repaired by melting them with a flame torch, making it a good product.

[0046] For preferred options, please refer to [link / reference]. Figure 1-4 The outlet hole 7 and the overflow hole 8 are respectively provided with a first connecting pipe 21 and a second connecting pipe 22, and a detachable water outlet pipe 10 and a detachable sealing plug 11 are installed on the first connecting pipe 21 and the second connecting pipe 22.

[0047] Water supply component 12, connected to glass box 1, is used to supply water to the river simulation area 6 or overflow area 5.

[0048] Specifically, water is added to the river simulation area 6 or the overflow area 5 through the water supply component 12, and the water in the river simulation area 6 and the overflow area 5 then flows out from the outlet hole 7 and the overflow hole 8 respectively, forming a circulating water flow, which can keep the water level in the river simulation area 6 and the overflow area 5 constant.

[0049] When the water outlet pipe 10 is connected to the corresponding first connecting pipe 21 and second connecting pipe 22, the water level will be at the height of the water outlet pipe 10 at this time. The other first connecting pipes 21 and second connecting pipes 22 that are not connected to the water outlet pipe 10 will be sealed by the sealing plug 11 to prevent water leakage.

[0050] If the outlet pipe 10 is installed on the lowest connecting pipe 21 and the second connecting pipe 22, then the river simulation area 6 or the overflow area 5 will simulate the lowest river water level and the lowest groundwater level scenarios. If the outlet pipe 10 is installed on the highest connecting pipe 21 and the second connecting pipe 22, then the river simulation area 6 or the overflow area 5 will simulate the highest river water level and the highest groundwater level scenarios. The selection can be adjusted as needed, offering high flexibility.

[0051] In this embodiment, preferably as described in 1-4, the water supply component 12 includes:

[0052] The water supply pipe 121 has one end connected to a water tank outside the pump body, and the other end extends into the simulated river area 6 or the overflow area 5 and is connected to a distributor 122. The other end of the distributor 122 is provided with multiple drainage heads.

[0053] Specifically, the outer end of the water supply pipe 121 is connected to a water tank, and the water in the tank is guided into the distributor 122 by the pump body. Then, the water is discharged from the distributor 122 into the river simulation area 6 or the overflow area 5. The distributor 122 is designed to reduce the force of the water flow entering the river simulation area 6 or the overflow area 5 and to make the flow rate gentler, thereby better simulating the state of surface water and groundwater.

[0054] For preferred options, please refer to [link / reference]. Figure 1-5 A snap-fit ​​component 13 is installed on the glass box 1. A support plate 14 is provided on the snap-fit ​​component 13. A detachable pressure plate 15 is installed on the support plate 14. Both the pressure plate 15 and the support plate 14 are provided with a limiting groove 16 that is compatible with the water supply pipe 121.

[0055] This design allows the snap-fit ​​13 to be installed on the upper part of the outer wall of the glass box 1, and the water supply pipe 121 to be placed on the support plate 14 and within the limiting groove 16. Then, the pressure plate 15 presses down on the water supply pipe 121, which can limit and support the water supply pipe 121, so that the water supply pipe 121 can supply water stably and prevent the water supply pipe 121 from shaking or falling.

[0056] In this embodiment, preferably, please refer to [reference needed]. Figure 2 and Figure 5 The support plate 14 has a locking screw hole 17, and the pressure plate 15 has a fastening bolt 18 that is compatible with the thread of the locking screw hole 17.

[0057] With this design, after the pressure plate 15 is pressed onto the support plate 14, the pressure plate 15 can be fixed onto the support plate 14 by turning the fastening bolt 18 into the corresponding locking screw hole 17, thus achieving the limitation of the water supply pipe 121.

[0058] In this embodiment, preferably, please refer to [reference needed]. Figure 5 The snap-fit ​​component 13 has a fixing hole 23, and the side wall of the glass box 1 has a through hole that matches the fixing hole 23.

[0059] This design allows for the fastener 13 to be secured to the glass box 1 by fastening it to the upper part of the outer wall of the glass box 1, and then by passing bolts through the fixing hole 23 and the through hole on the side wall of the glass box 1, thereby improving stability.

[0060] In this embodiment, preferably, please refer to [reference needed]. Figure 1-4 Both glass baffles 2 are equipped with sand-separating nets 19 at their closest ends. The side walls and bottom walls of the river channel simulation area 6 are separated from the medium-filled area 4 by sand-separating nets 19.

[0061] Specifically, by setting up the sand barrier 19, the filling medium in the medium filling area 4 can be prevented from entering the overflow area 5 and the river channel simulation area 6, thus ensuring water permeability while isolating the medium and preventing the filling medium inside the medium filling area 4 from flowing out.

[0062] In this embodiment, preferably, please refer to [reference needed]. Figure 1 and Figure 3 The rear wall of the glass box 1 is provided with multiple pressure measuring holes 20 corresponding to the pressure sensor 9. The inner wall of the pressure measuring hole 20 is provided with an internal thread that matches the thread on the pressure sensor 9. The detection end of the pressure sensor 9 extends into the interior of the medium filling area 4.

[0063] Specifically, the pressure sensor 9 can be inserted into and installed in the pressure measuring hole 20 by threaded installation, so that the detection end of the pressure sensor 9 extends into the interior of the medium filling area 4, which can achieve the effect of real-time monitoring of water head pressure. In addition, the pressure sensor 9 is easy to disassemble, thus facilitating maintenance or replacement.

[0064] It should be understood that the examples and embodiments described herein are for illustrative purposes only and are not intended to limit the present invention. Those skilled in the art can make various modifications or changes based on them. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

[0065] It should be noted that if the embodiments of this utility model involve directional indicators such as up, down, left, right, front, back, etc., the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture as shown in the attached figure. If the specific posture changes, the directional indicators will also change accordingly.

[0066] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the meaning of "and / or" throughout the text includes three parallel solutions; for example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, "multiple" refers to two or more. Moreover, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

Claims

1. A riverbank collapse simulation test device, characterized in that, include: The glass box (1) has two glass baffles (2) inside. Multiple permeation holes (3) are evenly opened on the glass baffles (2). The space between the two glass baffles (2) is a medium filling area (4). The space between the glass baffles (2) and the side wall of the glass box (1) is an overflow area (5). The river channel simulation area (6) is located at the top center of the medium filling area (4); Multiple outflow holes (7) are opened on the front wall of the glass box (1) and communicate with the river channel simulation area (6) to adjust the water level of the river channel simulation area (6); Multiple overflow holes (8) are provided on both sides of the glass box (1) and communicate with the overflow area (5) to adjust the water level of the overflow area (5); Multiple pressure sensors (9) are installed on the rear wall of the glass box (1) to monitor the head pressure changes in the medium filling area (4).

2. The riverbank collapse simulation test apparatus according to claim 1, wherein The outlet hole (7) and the overflow hole (8) are respectively provided with a first connecting pipe (21) and a second connecting pipe (22), and a detachable water outlet pipe (10) and a detachable sealing plug (11) are installed on the first connecting pipe (21) and the second connecting pipe (22). Water supply assembly (12), connected to the glass box (1), is used to supply water to the river simulation area (6) or the overflow area (5).

3. The riverbank collapse simulation test apparatus according to claim 2, wherein The water supply component (12) includes: The water supply pipe (121) has a water tank connected to the outside of the pump body at one end, and the other end extends into the simulated river area (6) or the overflow area (5) and is connected to a distributor (122). The other end of the distributor (122) is provided with multiple drainage heads.

4. The riverbank collapse simulation test apparatus according to claim 3, wherein The glass box (1) is equipped with a snap-fit ​​component (13), the snap-fit ​​component (13) is provided with a support plate (14), the support plate (14) is equipped with a detachable pressure plate (15), and both the pressure plate (15) and the support plate (14) are provided with a limiting groove (16) that is compatible with the water supply pipe (121).

5. The riverbank collapse simulation test apparatus according to claim 4, wherein The support plate (14) is provided with a locking screw hole (17), and the pressure plate (15) is provided with a fastening bolt (18) that is adapted to the thread of the locking screw hole (17).

6. The riverbank collapse simulation test apparatus according to claim 1, wherein Both of the glass baffles (2) are provided with sand-blocking nets (19) at their adjacent ends. The side walls and bottom walls of the river channel simulation area (6) are separated from the medium filling area (4) by the sand-blocking nets (19).

7. The riverbank collapse simulation test apparatus according to claim 1, wherein The rear wall of the glass box (1) is provided with a plurality of pressure measuring holes (20) corresponding to the pressure sensor (9). The inner wall of the pressure measuring hole (20) is provided with an internal thread that matches the thread on the pressure sensor (9). The probe end of the pressure sensor (9) extends into the interior of the medium filling area (4).

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