Experimental device for simulating impact of dam burst on bank slope

Abstract

The utility model discloses an experimental device for simulating the impact of dam burst on a bank slope, which belongs to the technical field of dam burst simulation experimental equipment and comprises an experimental box with an upper opening, and transparent observation glass is embedded in the upper opening of the experimental box. The rear end of the upper surface in the experiment box body is upwards connected with a base plate through a plurality of supporting columns, the upper surface of the base plate is provided with a simulation frame body of which the front end and the upper part are opened, the front end of the upper surface in the experiment box body is provided with a wastewater pool, and the wastewater pool wraps an area below the position of the opening at the front end of the simulation frame body; and a control panel is embedded in the front side surface of the experiment box body. The experiment device can simulate dam bursting of the barrier dam, meanwhile, through the flexible waterproof blocking cloth and the multiple pressure sensor structures, impact force data of water flow on all positions of the bank slope are detected, a three-dimensional force diagram is drawn, corresponding experiment data are obtained in combination with images before and after dam bursting of the barrier dam, and a theoretical basis is provided for later risk assessment.

Description

Technical Field

[0001] This utility model relates to the technical field of experimental equipment for simulating the collapse of a landslide dam, and more specifically, to an experimental device for simulating the impact of a landslide dam collapse on the bank slope. Background Technology

[0002] In recent years, my country has experienced significantly increased rainfall during the rainy season, leading to a rise in dam failures and flooding. Extreme weather events such as heavy rainfall, strong snowmelt, and high-intensity earthquakes can easily trigger large-scale debris flows in major river basins in high mountain and canyon areas. When debris flows enter the main river, they can quickly block the channel, forming high-level dams. As the water level upstream of these dams rises, they can create highly dangerous landslide-dammed lakes. If these lakes breach, they can unleash devastating bursts of floodwaters, causing severe damage downstream.

[0003] After a landslide dam breaks, the floodwaters from the breach will impact the bank slopes and buildings along the river at different speeds due to the different natural channels, causing damage to the bank slopes and buildings. Existing experimental devices are not good enough to simulate the impact force at different heights and it is difficult to collect data. In order to study the impact damage intensity of a landslide dam breach at different heights on the bank slope, it is necessary to design a special experimental device to simulate the above-mentioned breach situation in the laboratory, obtain experimental data, and provide a theoretical basis for subsequent risk assessment. Utility Model Content

[0004] The purpose of this invention is to provide an experimental device for simulating the impact of a landslide dam breach on a bank slope. This experimental device can simulate the breach of a landslide dam and, through a flexible waterproof barrier and multiple pressure sensor structures, detect the impact force data of water flow on various locations on the bank slope, draw a three-dimensional force diagram, and, combined with images before and after the landslide dam breach, obtain corresponding experimental data, providing a theoretical basis for subsequent risk assessment.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] An experimental device for simulating the impact of a landslide dam breach on a bank slope includes an experimental chamber with an opening at the top. A transparent observation glass is embedded in the opening of the experimental chamber. A base plate is connected upwards to the rear end of the upper surface of the experimental chamber via several pillars. A simulation frame with a front end and an opening at the top is mounted on the upper surface of the base plate. A wastewater pool is installed at the front end of the upper surface of the experimental chamber, and the wastewater pool covers the area below the opening of the front end of the simulation frame. A control panel is embedded in the front side of the experimental chamber and is connected to an external power supply. Baffles are provided between the two sides of the simulation frame and the inner side of the experimental chamber. The baffles are located in the upper area of ​​the wastewater pool. A water inlet is connected to the rear side of the experimental chamber via a connecting rod. A water injection pipe extends into the upper part of the water inlet and extends into the rear end of the simulation frame from below.

[0007] As a further optimization of this solution, a water level gauge is installed on one side of the rear end inside the simulation frame, and an artificially constructed experimental simulated landslide dam is provided at the front end inside the simulation frame. Inverted concave connecting rods are provided on the upper sides of both the front and rear sides of the experimental simulated landslide dam. The two ends of the inverted concave connecting rods are respectively mounted on the upper surfaces of the two sides of the simulation frame. Several image acquisition cameras are installed at intervals through sleeves at the middle position of the inverted concave connecting rods.

[0008] As a further optimization of this solution, connecting columns are installed on the substrate surfaces on both sides of the front opening area of ​​the simulated frame. An arc-shaped flexible waterproof barrier is wound and connected between the connecting columns. Several arc-shaped mounting strips spaced vertically are attached to the outer side of the flexible waterproof barrier. The several arc-shaped mounting strips spaced vertically are supported and fixed in position by several annularly spaced support rods.

[0009] As a further optimization of this solution, pressure sensors are installed at equal intervals on the inner sides of the several arc-shaped mounting strips spaced vertically. The pressure sensors and the image acquisition camera are connected to the control panel via wiring, which is led through guide rods inside the experimental chamber.

[0010] As a further optimization of this solution, a discharge pipe is machined on the side of the wastewater pool, and a switch valve is installed on the outside of the discharge pipe. The switch valve is located outside the experimental chamber.

[0011] Compared with existing technologies, the beneficial effects of this utility model are as follows:

[0012] In this invention, several image acquisition cameras are installed above the simulation frame via inverted concave connecting rods, which can comprehensively collect images before and after the landslide dam breach for data classification. Simultaneously, several pressure sensors on the inner side of several arc-shaped mounting strips spaced vertically and vertically detect the impact force data of water flow on various locations on the bank slope. A three-dimensional force diagram is drawn on the control panel, which is displayed on the control panel screen and recorded in the storage hard drive, making it convenient for experimental personnel to obtain corresponding experimental data and providing a theoretical basis for subsequent risk assessment. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of the experimental device of this utility model (with part of the experimental box shell removed);

[0014] Figure 2 This is a schematic diagram of the rear structure of the simulation frame of this utility model (with part of the experimental box shell removed);

[0015] Figure 3 This is a schematic diagram of the front structure of the simulation frame of this utility model (with part of the experimental box shell removed);

[0016] Figure 4 This is a schematic diagram of the inner structure of the arc-shaped mounting strip of this utility model;

[0017] Figure 5 This is a schematic diagram of the installation structure of the switch valve of this utility model (with part of the experimental chamber shell removed);

[0018] In the diagram: 1. Experimental chamber; 2. Transparent observation glass; 3. Support column; 4. Base plate; 5. Simulation frame; 6. Wastewater tank; 7. Control panel; 8. Wiring; 9. Water inlet hopper; 10. Connecting rod; 11. Water injection pipeline; 12. Baffle plate; 13. Water level gauge; 14. Simulated landslide dam for experiment; 15. Inverted concave connecting rod; 16. Sleeve; 17. Image acquisition camera; 18. Connecting column; 19. Flexible waterproof barrier; 20. Support rod; 21. Arc-shaped mounting strip; 22. Guide rod; 23. Discharge pipe; 24. Pressure sensor; 25. Switch valve. Detailed Implementation

[0019] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the following description, in conjunction with specific illustrations, further elaborates on this utility model.

[0020] In order to address the problem that existing experimental devices for dam breaches do not provide sufficient simulation results and are difficult to collect data on impact forces at different heights;

[0021] like Figure 1As shown, this application includes an experimental chamber 1 with an opening at the top. A transparent observation glass 2 is embedded in the opening of the experimental chamber 1. The rear end of the upper surface of the experimental chamber 1 is connected to a base plate 4 by several pillars 3. A simulation frame 5 with a front end and an opening at the top is installed on the upper surface of the base plate 4. A wastewater tank 6 is installed at the front end of the upper surface of the experimental chamber 1. The wastewater tank 6 covers the area below the opening at the front end of the simulation frame 5. A control panel 7 is embedded in the front side of the experimental chamber 1. The control panel 7 is connected to an external power supply. Baffles 12 are provided between the two sides of the simulation frame 5 and the inner side of the experimental chamber 1. The baffles 12 are located in the area above the wastewater tank 6. A water inlet 9 is connected to the rear side of the experimental chamber 1 through a connecting rod 10. A water inlet pipe 11 extends into the upper part of the water inlet 9 and extends into the rear end of the simulation frame 5 from the lower part of the water inlet 9.

[0022] like Figure 2 As shown, a water level gauge 13 is installed on one side of the rear end inside the simulation frame 5. An artificially constructed experimental simulated landslide dam 14 is provided at the front end inside the simulation frame 5. Inverted concave connecting rods 15 are provided on the upper sides of both the front and rear sides of the experimental simulated landslide dam 14. The two ends of the inverted concave connecting rods 15 are respectively mounted on the upper surfaces of both sides of the simulation frame 5. Several image acquisition cameras 17 are installed at intervals through sleeves 16 at the middle position of the inverted concave connecting rods 15.

[0023] like Figure 3 As shown, connecting posts 18 are installed on the surface of the substrate 4 on both sides of the front opening area of ​​the simulation frame 5. A flexible waterproof baffle 19 is wound and connected between the connecting posts 18. Several curved mounting strips 21 with vertical spacing are attached to the outer side of the flexible waterproof baffle 19. The several curved mounting strips 21 with vertical spacing are supported and fixed in position by several bracket rods 20 with annular spacing.

[0024] like Figure 4 As shown, pressure sensors 24 are installed at equal intervals on the inner sides of several arc-shaped mounting strips 21 spaced vertically. The pressure sensors 24 and the image acquisition camera 17 are all connected to the control panel 7 via line 8. Line 8 is led through the guide rod 22 inside the experimental chamber 1.

[0025] like Figure 5 As shown, a discharge pipe 23 is machined on the side of the wastewater tank 6, and a switch valve 25 is installed on the outside of the discharge pipe 23. The switch valve 25 is located outside the experimental chamber 1.

[0026] In the specific experiment, a simulated landslide dam 14 was manually constructed at the front end inside the simulated frame 5. Each experiment involved constructing simulated landslide dam 14 of varying lengths and heights, scaled down from the actual site, to simulate the shape of landslide dams in different areas. Water was injected into the rear end of the simulated frame 5 through the water injection pipe 11. The water level was observed using a water level gauge 13. Simultaneously, images of the simulated landslide dam 14 were captured at various time intervals by front and rear image acquisition cameras 17 and transmitted to the control panel 7 via line 8. As the water level increased, water entered the sand and gravel inside the simulated landslide dam 14, causing… The experiment simulated a landslide dam 14 breach in the middle section, with water rushing forward and impacting various heights on the surface of a flexible waterproof barrier 19. The impact force of the water flow at different heights was detected by pressure sensors 24 located at various positions attached to the back of the flexible waterproof barrier 19 and transmitted to the control panel 7 via line 8. The processor inside the control panel 7 received and processed the experimental data, and used built-in software to draw a three-dimensional force diagram. The diagram was then displayed on the screen of the control panel 7 and recorded in the storage hard drive, allowing the experimenters to obtain the corresponding experimental data and providing a theoretical basis for subsequent risk assessment.

[0027] All standard parts used in this utility model can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art, and the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here.

[0028] The foregoing has shown and described the basic principles and main features of this utility model, as well as its advantages. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. An experimental device for simulating the impact of dam-break of a barrier dam on a bank, characterized in that: The utility model provides experimental box body including upper opening, the transparent observation glass is embeddedly installed at the upper opening position of experimental box body, the upper surface rear end in experimental box body is connected with the base plate through a plurality of struts upwards, the front end and the upper opening simulation frame body are installed on the upper surface of base plate, the wastewater pool is installed on the upper surface front end in experimental box body, the wastewater pool is wrapped the lower area of simulation frame body front end opening position, the control panel is embeddedly installed in the front side of experimental box body, the control panel is connected with the power supply, the baffle is arranged between the both sides of simulation frame body and the inner side of experimental box body, the baffle is located in the upper area in wastewater pool pool, the water inlet is connected with the water inlet hopper through the connecting rod in the rear side of experimental box body, the water inlet hopper is inserted into the water injection pipeline upwards and the water inlet hopper is inserted into the rear end of simulation frame body downwards. 2.The experimental device for simulating the impact of dam-break on the bank according to claim 1, wherein: The water level meter is installed on the rear end of simulation frame body, the artificial stacking experimental simulation dam body is arranged in the front end of simulation frame body, the concave link is arranged on the upper side of experimental simulation dam body, the concave link is arranged on the upper end of simulation frame body, the sleeve is arranged on the middle position of concave link, and a plurality of image acquisition cameras are arranged on the sleeve.

3. The experimental device for simulating the impact of dam-break on the bank slope according to claim 2, characterized in that: The connecting column is installed on the surface of base plate on both sides of simulation frame body, the flexible waterproof cloth is arranged between the connecting column, the flexible waterproof cloth is arranged on the outer side of flexible waterproof cloth, a plurality of arc-shaped mounting strips are arranged on the outer side of flexible waterproof cloth, the arc-shaped mounting strips are arranged on the outer side of flexible waterproof cloth, and the arc-shaped mounting strips are arranged on the outer side of flexible waterproof cloth.

4. The experimental device for simulating the impact of dam-break on the bank slope according to claim 3, characterized in that: The pressure sensor is arranged on the inner side of arc-shaped mounting strip, the pressure sensor and image acquisition camera are connected with the control panel through the line, and the line is connected with the control panel through the guide rod in experimental box body.

5. The experimental device for simulating the impact of dam-break on the bank slope according to claim 4, characterized in that: The wastewater pool is arranged on the side of wastewater pool, the switch valve is arranged on the outer side of wastewater pool, and the switch valve is arranged on the outer side of wastewater pool.

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