A physical simulation test device for studying strong rainfall landslide-building interaction

Abstract

The utility model provides a kind of physical simulation test device for studying strong rainfall landslide-building interaction, comprising: test-bed main body, rainfall simulation subassembly, landslide simulation subassembly and building structure model subassembly;The rainfall simulation subassembly includes: support being arranged on the upper end of test-bed main body;Rainfall transmission mechanism is transmission connection with the support, for pushing support dynamic movement;Spray, set in support upper end, for simulating heavy rainfall;The landslide simulation subassembly includes: landslide platform being arranged on the upper end of test-bed main body, simulation soil is laid on landslide platform upper end, for simulating landslide mass;Landslide transmission mechanism is transmission connection with the landslide platform, for pushing landslide platform dynamic swing;Building structure model subassembly includes: building model being arranged on the upper end of test-bed main body, for simulating building structure.The utility model dynamically simulates the interaction of landslide to building structure caused by rainwater infiltration in the process of heavy rainfall under different angle slope body.

Description

Technical Field

[0001] This utility model relates to the field of geological disaster simulation test technology, and in particular to a physical simulation test device for studying the interaction between heavy rainfall landslides and buildings. Background Technology

[0002] Traditional landslide research focuses on the initiation mechanism, trajectory, and stability analysis of landslide bodies, while relatively little research is done on the dynamic interaction process between landslide bodies and building structures, especially lacking experimental equipment that can accurately simulate this complex process under heavy rainfall conditions.

[0003] While some landslide simulation test devices exist in the current technology, most of them ignore the influence of rainfall and can only simulate static water environments. They cannot dynamically simulate the interaction between landslides caused by rainwater infiltration during heavy rainfall at different slope angles and building structures. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the defects of the existing technology. This utility model proposes a physical simulation test device for studying the interaction between heavy rainfall landslides and buildings.

[0005] To address the technical problem mentioned above, although some landslide simulation test devices exist, most of them ignore the influence of rainfall and can only simulate a simple static water environment, failing to dynamically simulate the interaction between landslides caused by rainwater infiltration during heavy rainfall at different slope angles and building structures, the technical solution adopted by this utility model is: A physical simulation test device for studying the interaction between heavy rainfall, landslides, and buildings includes: a test platform body, a rainfall simulation component, a landslide simulation component, and a building structure model component; The rainfall simulation component includes: a support frame installed on the upper part of the test bench body; The rainfall transmission mechanism is connected to the support frame and is used to drive the support frame to move dynamically; The sprinkler system, installed at the top of the support frame, is used to simulate heavy rainfall. The landslide simulation component includes: a landslide platform set at the top of the main test bench, with simulated soil laid on the top of the landslide platform to simulate a landslide body; The landslide transmission mechanism is connected to the landslide platform and is used to drive the landslide platform to swing dynamically. The building structure model component includes: a building model set on the upper part of the test bench, used to simulate the building structure.

[0006] Preferably, the rainfall transmission mechanism includes slide rails fixedly installed on both sides of the upper end of the test bench body and a slide table that is movably connected to the outer end of the slide rails.

[0007] Preferably, a drive motor is fixedly installed on the outer side of the slide, and a gear is fixedly installed on the transmission shaft at the lower end of the drive motor, with a rack meshing inside the gear.

[0008] Preferably, a connecting pipe is fixedly installed through the top of the bracket, and the spray is fixedly connected to the lower end of the connecting pipe. The spray adopts a multi-row nozzle structure. A water tank is fixedly installed at the top of the main body of the test bench. A water filling pipe is connected through the upper end of the water tank, and a pump body is connected to the lower end of the water tank. The water outlet of the pump body is connected to the connecting pipe through a solenoid valve and a flexible hose.

[0009] Preferably, a swing groove is provided through the bottom of the upper end of the test bench body, and the landslide platform is rotatably connected to the upper end of the swing groove.

[0010] Preferably, a vibration motor is fixedly installed inside the landslide platform, and a waterproof membrane is fixedly connected to the outer perimeter of the landslide platform. The side of the waterproof membrane away from the outer perimeter of the landslide platform is fixedly connected to the upper opening of the swing groove. The waterproof membrane is made of flexible rubber material.

[0011] Preferably, the landslide transmission mechanism includes an electric push rod that is rotatably connected to the lower end of the test bench body, and the upper telescopic part of the electric push rod is rotatably connected to the bottom of the landslide bench.

[0012] Preferably, a positioning groove is provided at the bottom of the upper end of the test platform body, the building model is fixed at the upper end of the positioning groove, and the building model is located on the movement path of the landslide body at the upper end of the landslide platform. The building model is made of lightweight materials, and a monitoring sensor is embedded inside the building model. The monitoring sensor is used to monitor the stress, strain and displacement during the impact process of the landslide body, as well as the dynamic response of the deformation and failure process of the building model.

[0013] Compared with the prior art, the beneficial effects of this utility model are: This invention uses a spray system to direct water downwards to the landslide body at the top of the landslide platform, thus simulating the process of rainfall of varying intensities seeping into the landslide body. Simultaneously, a drive motor is activated, which rotates the gears. The force generated by the meshing of the gears and racks causes the sliding platform to move linearly along the outer end of the slide rail, thereby synchronously adjusting the linear movement of the spray system. This allows for dynamic adjustment of the simulated spray position during heavy rainfall. This invention also controls the extension and retraction of an electric push rod, which drives the landslide platform to swing. The landslide body at the top of the landslide platform swings up and down dynamically, thereby adjusting the landslide angle and dynamically simulating the interaction between the landslide and the building structure caused by rainwater infiltration during heavy rainfall at different angles of the slope. Attached Figure Description

[0014] The disclosure of this utility model is illustrated with reference to the accompanying drawings. It should be understood that the drawings are for illustrative purposes only and are not intended to limit the scope of protection of this utility model. In the drawings, the same reference numerals are used to refer to the same parts. Wherein: Figure 1 This is a schematic diagram of the overall structure of the present invention. Figure 1 .

[0015] Figure 2 This is a schematic diagram of the overall structure of the present invention. Figure 2 .

[0016] Figure 3 This is a cross-sectional view of the overall structure of this utility model.

[0017] Figure label: 1. Rainfall simulation components; 101. Slide rail; 102. Slide table; 103. Support; 104. Connecting pipe; 105. Sprinkler; 106. Water tank; 107. Water supply pipe; 108. Pump body; 109. Drive motor; 110. Gear; 111. Rack; 2. Landslide simulation components; 201. Swinging trough; 202. Landslide platform; 203. Vibration motor; 204. Waterproof membrane; 205. Electric actuator; 3. Architectural structure model components; 301. Positioning slot; 302. Architectural model; 4. Main body of the test bench. Detailed Implementation

[0018] It is readily understood that, based on the technical solution of this utility model, those skilled in the art can propose various interchangeable structural methods and implementations without altering the essential spirit of this utility model. Therefore, the following detailed embodiments and accompanying drawings are merely illustrative descriptions of the technical solution of this utility model and should not be considered as the entirety of this utility model or as limitations or restrictions on the technical solution of this utility model.

[0019] The specific embodiments of this utility model are described below with reference to the accompanying drawings.

[0020] Please see Figures 1-3 This embodiment proposes a physical simulation test device for studying the interaction between heavy rainfall, landslides, and buildings, including a test platform body 4, a rainfall simulation component 1, a landslide simulation component 2, and a building structure model component 3.

[0021] Regarding the rainfall simulation component 1, slide rails 101 are fixedly installed on both sides of the upper end of the test bench body 4, with the slide rails 101 symmetrically distributed on both sides of the upper end of the test bench body. A slide table 102 is movably connected to the outer end of each slide rail 101, and the two fit tightly and move smoothly. A U-shaped support 103 is welded to the upper end of the slide table 102, and a connecting pipe 104 is glued through the top of the support 103. The lower end of the connecting pipe 104 is fixedly connected to a spray system 105 for simulating heavy rainfall. This spray system 105 uses a multi-row nozzle structure, which can accurately simulate rainfall processes of different intensities. A water tank 106 is securely supported and fixedly installed on the top of the test bench body 4 by bolts. A water supply pipe 107 is connected through the top of the water tank 106 for easy water replenishment. The lower end of the water tank 106 is fixedly connected to the pump body 108. The water outlet of the pump body 108 is connected to the hose through a solenoid valve. The other end of the hose is connected to the connecting pipe 104. In this way, the pump body 108 can pressurize the water in the water tank 106 and discharge it into the connecting pipe 104.

[0022] A drive motor 109 is bolted to the outer side of the slide table 102. A gear 110 is fixedly mounted on the transmission shaft at the lower end of the drive motor 109. The inner side of the gear 110 meshes with a rack 111. The rack 111 is horizontally fixed to the outer wall of the upper end of the test bench body 4 by screws. Through the meshing transmission between the rack 111 and the gear 110, precise movement of related components can be achieved.

[0023] In the landslide simulation component 2, a swing groove 201 is formed through the bottom of the upper part of the test platform body 4. The upper end of the swing groove 201 is rotatably connected to the hollow landslide platform 202 via a pin. The surface of the landslide platform 202 is carefully covered with simulated soil or rock-soil mixture material to highly replicate the geological conditions of a real landslide. A vibration motor 203 is fixedly installed inside the landslide platform 202 to simulate the impact of external dynamic forces such as earthquakes on the stability of the landslide body. A waterproof membrane 204 is adhered to the outer periphery of the landslide platform 202. The side of the waterproof membrane 204 away from the outer periphery of the landslide platform 202 is adhered to the upper opening of the swing groove 201. This waterproof membrane 204 is made of stretchable flexible rubber material and can effectively cover the upper opening of the swing groove 201, thus providing a waterproof function.

[0024] In addition, the lower end of the test bench body 4 is rotatably connected to an electric push rod 205 via a bearing seat. The upper end of the electric push rod 205 is inclined upward, and its upper telescopic part is rotatably connected to the bottom of the landslide platform 202 via a bearing seat. Through the transmission of the electric push rod 205, the landslide platform 202 can be pushed to swing and adjust.

[0025] Please continue reading. Figures 1-3 The structural model component 3 includes a positioning groove 301 located at the bottom of the upper part of the test platform body 4. A structural model 302 is fixedly installed on the upper part of the positioning groove 301 by bolts, and the structural model 302 is located on the movement path of the landslide body at the upper end of the landslide platform 202. The structural model 302 is made of lightweight materials and has embedded monitoring sensors, including displacement sensors and pressure sensors, which can monitor the stress, strain, and displacement during the impact process of the landslide body in real time, as well as the dynamic response of the deformation and failure process of the structural model 302.

[0026] In actual use, the pump body 108 is turned on, pressurizing the water in the water tank 106 and discharging it into the connecting pipe 104. The water is then discharged downwards through the spray nozzle 105 to the landslide body at the upper end of the landslide platform 202, thus simulating the process of rainfall of different intensities seeping into the landslide body. At the same time, the drive motor 109 is turned on, driving the gear 110 to rotate. The force generated by the meshing of the gear 110 and the rack 111 drives the slide platform 102 to move linearly along the outer end of the slide rail 101, thereby synchronously driving the spray nozzle 105 to move linearly and adjust, realizing the simulated position of the spray nozzle 105 by dynamically moving and adjusting it during heavy rainfall.

[0027] In addition, the electric push rod 205 is controlled to extend and retract, and the electric push rod 205 drives the landslide platform 202 to swing. The landslide body at the upper end of the landslide platform 202 swings up and down dynamically, thereby adjusting the landslide angle and dynamically simulating the interaction between the landslide and the building structure caused by rainwater infiltration during heavy rainfall under different angle slopes.

[0028] The technical scope of this utility model is not limited to the content described above. Those skilled in the art can make various modifications and variations to the above embodiments without departing from the technical concept of this utility model, and all such modifications and variations should fall within the protection scope of this utility model.

Claims

1. A physical simulation experimental device for studying the interaction between landslides and buildings during heavy rainfall, characterized in that, include: The main body of the test bench, rainfall simulation components, landslide simulation components, and building structure model components; The rainfall simulation component includes: a support frame installed on the upper part of the test bench body; The rainfall transmission mechanism is connected to the support frame and is used to drive the support frame to move dynamically; The sprinkler system, installed at the top of the support frame, is used to simulate heavy rainfall. The landslide simulation component includes: a landslide platform set at the top of the main test bench, with simulated soil laid on the top of the landslide platform to simulate a landslide body; The landslide transmission mechanism is connected to the landslide platform and is used to drive the landslide platform to swing dynamically. The building structure model component includes: a building model set on the upper part of the test bench, used to simulate the building structure.

2. The physical simulation experimental device for studying the interaction between landslides and buildings during heavy rainfall, as described in claim 1, is characterized in that... The rainfall transmission mechanism includes slide rails fixedly installed on both sides of the upper end of the test bench body and slide tables that are movably connected to the outer ends of the slide rails.

3. The physical simulation experimental device for studying the interaction between landslides and buildings during heavy rainfall, as described in claim 2, is characterized in that... A drive motor is fixedly installed on the outer side of the slide table, and a gear is fixedly installed on the transmission shaft at the lower end of the drive motor. A rack is meshed with the inner side of the gear.

4. The physical simulation experimental device for studying the interaction between landslides and buildings during heavy rainfall, as described in claim 1, is characterized in that... A connecting pipe is fixedly installed through the top of the bracket. The spray is fixedly connected to the lower end of the connecting pipe. The spray adopts a multi-row nozzle structure. A water tank is fixedly installed at the top of the main body of the test bench. A water filling pipe is connected through the upper end of the water tank. A pump body is connected to the lower end of the water tank. The water outlet of the pump body is connected to the connecting pipe through a solenoid valve and a flexible hose.

5. The physical simulation experimental device for studying the interaction between landslides and buildings during heavy rainfall, as described in claim 1, is characterized in that... The test bench body has a swing groove extending through the bottom of the upper end, and the landslide platform is rotatably connected to the upper end of the swing groove.

6. The physical simulation experimental device for studying the interaction between landslides and buildings during heavy rainfall, as described in claim 5, is characterized in that... A vibration motor is fixedly installed inside the landslide platform, and a waterproof membrane is fixedly connected to the outer perimeter of the landslide platform. The side of the waterproof membrane away from the outer perimeter of the landslide platform is fixedly connected to the upper opening of the swing groove. The waterproof membrane is made of flexible rubber material.

7. The physical simulation experimental device for studying the interaction between landslides and buildings during heavy rainfall, as described in claim 1, is characterized in that... The landslide transmission mechanism includes an electric push rod that is rotatably connected to the lower end of the test bench body, and the upper telescopic part of the electric push rod is rotatably connected to the bottom of the landslide bench.

8. The physical simulation experimental device for studying the interaction between landslides and buildings during heavy rainfall, as described in claim 1, is characterized in that... The test platform has a positioning groove at the bottom of the upper end. The building model is fixed at the upper end of the positioning groove and is located on the movement path of the landslide body at the upper end of the landslide platform. The building model is made of lightweight materials and has a monitoring sensor embedded inside. The monitoring sensor is used to monitor the stress, strain and displacement of the landslide body during the impact process, as well as the dynamic response of the deformation and failure process of the building model.

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