A landslide surge starting device

Abstract

The present invention discloses a landslide surge starting device, including a movable steel plate, the movable steel plate is composed of two mutually rotatably connected steel plates, one of which is fixed at the foot of the slope, the other steel plate has a landslide body piled on the surface of the slope along the surface of the slope, the main body of the landslide surge starting device is placed between the two steel plates, the main body of the landslide surge starting device is connected to a high-pressure gas cylinder via a connecting air pipe, the connecting air pipe is provided with a venting valve, and the venting valve is provided with a venting hole. The device of the present invention effectively controls the generation of an air-facing surface at the foot of the slope by pressing and releasing high-pressure gas, so that the landslide body is unstable and damaged, thereby causing landslide surge. Since the main body of the device has been placed inside the foot of the slope in advance, its volume is controlled only by connecting the air pipe, so there will be no disturbance to the water body, which makes the physical simulation research of landslide surge closer to the real situation and has more theoretical and practical significance.

Description

Technical Field

[0001] The invention relates to a landslide surge starting device, belonging to the technical field of landslide surge physical simulation research. Background Art

[0002] Landslide surge is a huge surge formed after the landslide body slides into the river. The damage caused to the occurrence area and the propagation area is very huge, sometimes even greater than the landslide itself. At present, the formation and propagation of landslide surge is a hot and difficult topic for scholars at home and abroad. The main research methods include theoretical analysis, physical simulation, numerical calculation, etc. Among them, the physical simulation experiment involves the study of the method of inducing surge by landslide initiation.

[0003] In the real situation of landslide-induced surge, the landslide body mostly enters the water in the form of a composite of debris flow and block to induce surge. In the previous studies, most of the starting devices change the slope of the landslide body or artificially create waves, which makes it impossible to simulate the real situation of the landslide body sliding down or the starting device disturbs the water body too much, resulting in large errors in the physical simulation test and unable to reflect the real landslide surge situation. Summary of the invention

[0004] The purpose of the present invention is to provide a landslide surge starter device to solve the problem that most landslide surge starters currently cannot simulate the actual sliding of the landslide body and the excessive disturbance to the water body, resulting in large errors in physical simulation tests and being unable to reflect the actual landslide surge conditions.

[0005] The technical solution of the present invention is as follows: a landslide surge starting device comprises a movable steel plate, the movable steel plate is composed of two steel plates rotatably connected to each other, one of the steel plates is fixed at the foot of the slope, the other steel plate has a landslide body piled up on the surface of the slope, a main body of the landslide surge starting device is placed between the two steel plates, the main body of the landslide surge starting device is connected to a high-pressure gas cylinder via a connecting air pipe, a deflation valve is arranged on the connecting air pipe, and a deflation hole is arranged on the deflation valve.

[0006] In the aforementioned landslide surge starting device, the connecting air pipe is provided with a gas cylinder air pressure inventory gauge and a connecting air pipe side working pressure gauge.

[0007] In the aforementioned landslide surge starting device, the connecting end portion of the connecting air pipe and the main body of the landslide surge starting device is fixedly connected with a connecting buckle, and the connecting buckle is buckled and connected with the pipe of the main body of the landslide surge starting device.

[0008] In the aforementioned landslide surge starting device, a pressure relief hole is also provided at the gas outlet of the high-pressure gas cylinder.

[0009] In the aforementioned landslide surge starting device, the two movable steel plates are connected via a connecting hinge.

[0010] In the aforementioned landslide surge starting device, the main body of the landslide surge starting device is an anti-skid and wear-resistant high-pressure air cushion.

[0011] In the aforementioned landslide surge starting device, anti-skid structures are provided on the inner sides of the two movable steel plates.

[0012] Beneficial effects of the present invention: Compared with the prior art, the landslide surge starting device has the following three effects:

[0013] 1. By pressing in and releasing high-pressure gas, the free surface at the foot of the slope is effectively controlled, causing the landslide to become unstable and damaged, thus causing landslide surges. Since the main body of the device has been placed inside the foot of the slope in advance, its volume is only controlled by connecting the gas pipe, so there will be no disturbance to the water body, which makes the physical simulation research of landslide surges closer to the real situation and more theoretical and practical.

[0014] 2. Since the main body of the device is placed at the foot of the slope in an inflated state in advance, and the high-pressure gas inside is discharged through the connecting air pipe, the volume of the foot of the slope is reduced, and an air surface is generated to induce a landslide. This is almost the same as the situation in which the foot of the slope in the real reservoir area softens after being immersed in water for a long time, thereby inducing a landslide. After the landslide occurs, the landslide body enters the water in the form of a dispersed debris flow and a block complex. Compared with the method of changing the overall angle of the slope to induce a landslide, it is closer to the real situation and has more theoretical and practical significance. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0016] Figure 2 A top view of the main body of the device of the present invention;

[0017] Figure 3 It is a schematic diagram of an embodiment of the present invention.

[0018] In the figure: 1. The main body of the landslide surge starting device; 2. The movable steel plate; 3. The connecting hinge; 4. The connecting buckle; 5. The air vent; 6. The air vent valve; 7. The working pressure gauge on the gas cylinder side; 8. The working pressure gauge on the connecting gas pipe side; 9. The pressure relief hole; 10. The high-pressure gas cylinder; 11. The landslide body. DETAILED DESCRIPTION

[0019] The present invention is further described below in conjunction with the accompanying drawings and embodiments, but they are not intended to limit the present invention.

[0020] Embodiment of the present invention: A landslide surge starting device, such as Figure 1-3As shown, a landslide surge starting device includes a movable steel plate 2, which is composed of two steel plates rotatably connected to each other, one of which is fixed at the foot of the slope, and the other steel plate has a landslide body 11 piled on the surface of the slope along the surface of the slope, and a landslide surge starting device body 1 is placed between the two steel plates. The landslide surge starting device body 1 is connected to a high-pressure gas cylinder 10 via a connecting air pipe, and a venting valve 6 is provided on the connecting air pipe, and a venting hole 5 is provided on the venting valve 6.

[0021] The connecting air pipe is provided with a gas cylinder pressure inventory gauge 7 and a connecting air pipe side working pressure gauge 8, which are used to monitor the internal air pressure of the high-pressure gas cylinder 10 and the air pressure inside the connecting air pipe respectively.

[0022] The connecting end of the connecting air pipe and the landslide surge starting device body 1 is fixedly connected with a connecting buckle 4, and the connecting buckle 4 is buckled and connected with the pipe of the landslide surge starting device body 1. During use, one end of the connecting buckle 4 is tied with a raw tape to prevent air leakage, and then buckled with the pipe of the landslide surge starting device body 1 to achieve quick connection of the connecting air pipe. Then, the connecting air pipe on one side of the high-pressure gas cylinder 10 is connected, and the other side of the connecting air pipe is connected to the high-pressure gas cylinder 10 through a knob and tightened.

[0023] The gas outlet of the high-pressure gas cylinder 10 is also provided with a pressure relief hole 9 to prevent the internal pressure of the high-pressure gas cylinder 10 from being over-pressurized.

[0024] The two steel plates of the movable steel plate 2 are connected by 6 loose-leaf devices 3 with a length of 7 cm, so as to ensure the mobility and stability of the movable steel plate 2.

[0025] The main body 1 of the landslide surge starting device is a non-slip and wear-resistant high-pressure air cushion.

[0026] The inner sides of the two movable steel plates 2 are provided with anti-skid structures to prevent the landslide and surge device body 1 from sliding out, thereby ensuring the stability of the landslide device body 1.

[0027] The landslide surge starting device of the present invention comprises a landslide surge starting device body 1, a movable steel plate 2, a connecting loose-leaf 3, a connecting buckle 4, a venting hole 5, a venting valve 6, a gas cylinder air pressure inventory gauge 7, a connecting air pipe side working pressure gauge 8, a pressure relief hole 9, and a high-pressure gas cylinder 10. The landslide surge starting device body 1 is a non-slip and wear-resistant high-pressure air cushion that can bear a load of 20 tons, with a specification of 600*600mm, a maximum lifting range of 600mm, and a maximum working pressure of 0.8Mpa. The air cushion shell is two 5mm thick movable steel plates 2 with a specification of 750*650mm, which are used to protect the main body 1 of the landslide surge device and separate it from the landslide body 11 formed by the overlying soil. The inner sides of the two movable steel plates 2 are equipped with anti-skid measures to prevent the main body 1 of the landslide surge device from sliding out and ensure the stability of the main body 1 of the landslide surge device. The two steel plates are connected by 6 loose-leaf devices 3 with a length of 7cm to ensure the mobility and stability of the movable steel plates 2. The connecting air pipe is divided into two sections, which are respectively connected to one side of the landslide startup device main body 1 and one side of the high-pressure gas cylinder 10 through the venting valve 6. The venting valve is used to control the high-pressure gas to be pressed into and released from the main body 1 of the landslide surge device. On one side of the high-pressure gas cylinder 1, the connecting air pipe is connected to the working pressure gauge and the pressure relief hole 9 through a knob. The function of the pressure relief hole 9 is to prevent the air pipe on the high-pressure gas cylinder side from bursting due to excessive pressure. The gas cylinder pressure inventory gauge 7 and the working pressure gauge 8 on the connecting air pipe side are used to monitor the air pressure in the high-pressure gas cylinder 10 and the connecting air pipe. The gas range in the high-pressure gas cylinder 10 should be within 3-15Mpa, and the air pressure in the connecting air pipe should not exceed the maximum working pressure, that is, 0.8Mpa.

[0028] Working principle: According to Figure 3 First, the staff will close the vent valve 6 and the vent hole 5 to prevent the main body 1 of the landslide surge starting device from bursting due to over-rapid inflation. Then, tie the connecting buckle 4 with raw tape to prevent air leakage. Then, the pipe of the main body 1 of the landslide surge starting device is buckled with the connecting buckle 4. Then, connect the connecting air pipe on one side of the high-pressure gas cylinder 10, and connect the other side of the connecting air pipe to the high-pressure gas cylinder 10 through a knob and tighten it. The whole landslide surge starting device is connected. At this time, the high-pressure gas cylinder 10 is in a closed state, and the working pressure gauge 8 on the connecting air pipe side is at the 0 scale. Figure 2As shown, the main body 1 of the landslide surge starter device is placed inside the foot of the landslide body. At this time, the device is in an uninflated state. The high-pressure gas cylinder 10 is opened. The gas cylinder pressure inventory gauge 7 shows the internal gas pressure of the high-pressure gas cylinder 10. The high-pressure gas has been filled into the connecting gas pipe until the venting valve 6. Check the working pressure gauge 8 on the connecting gas pipe side. If the value does not exceed the maximum working pressure of 0.8Mpa, slowly open the venting valve 6 to allow the high-pressure gas to slowly fill the main body 1 of the landslide surge starter device. At this time, the main body 1 of the landslide surge starter device has a certain height, and the movable steel plate 2 is connected to the landslide body through the loose-leaf 3. The main body 1 of the surge starting device is raised and lowered at the same time. After closing the vent valve 6 and the high-pressure gas cylinder 10, the vent valve 6 is opened again to allow the high-pressure gas in the connecting air pipe between the high-pressure gas cylinder 10 and the vent valve 6 to be filled into the main body 1 of the landslide surge starting device. After the inflation is completed, the landslide surge starting device as a whole has been lifted to a certain height. After being placed inside the foot of the slope, the overlying soil is filled. The vent valve 6 is closed, and the knob connecting the high-pressure gas cylinder 10 and the connecting air pipe is opened to separate the high-pressure gas cylinder 10 from the device as a whole, so as to continue to repeat the operation to inflate other landslide surge devices. After the device is inflated and separated from the high-pressure gas cylinder 10, the landslide can be triggered. The knob of the vent hole 5 is opened, and the high-pressure gas inside the landslide surge triggering device body 1 begins to be discharged outward at a constant speed. The volume of the device shrinks at a constant speed, causing the foot of the landslide body 11 to first become unstable and damaged to produce an air surface, and then the landslide body 11 as a whole becomes unstable and damaged, and the landslide body 11 slides into the water in a sliding manner close to the real state to cause surges. The above is the working process of the entire device, and the contents not described in detail in this specification belong to the existing technology known to professional and technical personnel in this field.

Claims

1. A landslide surge starting device, characterized in that: The invention comprises a movable steel plate (2), the movable steel plate (2) being composed of two steel plates rotatably connected to each other, one of which is fixed at the foot of the slope, the other of which has a landslide body (11) piled on its surface along the surface of the slope, a landslide surge starting device body (1) being placed between the two steel plates, the landslide surge starting device body (1) being connected to a high-pressure gas cylinder (10) via a connecting air pipe, a deflation valve (6) being provided on the connecting air pipe, and a deflation hole (5) being provided on the deflation valve (6); High-pressure gas is filled into the main body of the landslide surge test device. After the main body of the landslide surge test device is inflated and separated from the high-pressure gas cylinder (10), the landslide can be triggered to start. The knob of the air release hole (5) is opened, and the high-pressure gas inside the main body (1) of the landslide surge starter device begins to be discharged outward at a constant speed. The main body of the landslide surge test device shrinks at a constant speed, causing the foot of the landslide body (11) to first become unstable and fail to produce an air surface, and then the entire landslide body (11) becomes unstable and fails. The landslide body (11) slides into the water in a sliding manner close to the real state, causing surges.

2. The landslide surge starting device according to claim 1, characterized in that: The connecting air pipe is provided with a gas cylinder gas pressure inventory gauge (7) and a connecting air pipe side working pressure gauge (8).

3. The landslide surge starting device according to claim 1, characterized in that: The connecting end of the connecting air pipe and the landslide surge starting device body (1) is fixedly connected with a connecting buckle (4), and the connecting buckle (4) is buckled and connected with the pipe of the landslide surge starting device body (1).

4. The landslide surge starting device according to claim 1, characterized in that: The high-pressure gas cylinder (10) is also provided with a pressure relief hole (9) at the gas outlet.

5. The landslide surge starting device according to claim 1, characterized in that: The two steel plates of the movable steel plate (2) are connected via a connecting hinge (3).

6. The landslide surge starting device according to claim 1, characterized in that: The main body (1) of the landslide surge starting device is a non-slip and wear-resistant high-pressure air cushion.

7. The landslide surge starting device according to claim 1, characterized in that: Anti-slip structures are arranged on the inner sides of the two steel plates of the movable steel plate (2).

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