A rebound energy dissipation device suitable for debris flow control

Abstract

A rebound energy dissipation device suitable for debris flow control comprises a device body, a steel pipe frame for support is arranged below the device body; an energy dissipation belt is arranged on the surface of the device body, and an elastic frame for driving the energy dissipation belt to rebound up and down is arranged inside the frame of the steel pipe frame; when the rebound energy dissipation device is in use, the device body is placed in a groove hole dug below the surface of the debris flow slope, and when the debris flow passes over the device body, the energy dissipation belt and the elastic frame can undergo elastic deformation; the technical key points are that the device body used can well adapt to the deformation caused by gravity of the debris flow and consume the energy of the debris flow at the same time, the use of the elastic frame can further absorb the energy generated by the debris flow, and the debris flow rebounds after passing through the elastic frame and the energy dissipation belt, and the device body returns to its original state; at the same time, the rebound energy dissipation devices can be arranged at intervals on the same debris flow slope to achieve multi-stage energy dissipation treatment of the debris flow.

Description

Technical Field

[0001] The invention belongs to the field of natural disaster prevention and control, and in particular is a rebound energy dissipation device suitable for debris flow control. Background Art

[0002] Debris flow is a torrent of loose rock and water flowing along the slope under the action of gravity. It often occurs in mountainous areas or other canyon areas. Debris flow has the characteristics of instantaneous outbreak and fierce torrent, and its causes are complex. It is the result of the combined action of various natural and human factors. It is also one of the most serious natural disasters in mountainous areas.

[0003] Houses are the main disaster-bearing objects in debris flow danger zones. The impact force of the fluid part of the debris flow and the impact force of the blocks contained in the debris flow are the main reasons for the damage caused by debris flow to buildings or structures. Reducing the energy of the debris flow during its movement can reduce or avoid damage to buildings downstream of the debris flow, while reducing the bottom erosion of the debris flow.

[0004] For example, the invention patent with application number 201510568281.5 and titled Design method and application of box energy dissipation section of box energy dissipation debris flow drainage channel. This invention patent realizes the reasonable optimization design of the box energy dissipation section of the box energy dissipation debris flow drainage channel;

[0005] However, the existing debris flow energy dissipation device has a disadvantage: it is easy to cause siltation of debris flow blocks. If the debris flow blocks are too silted, it will affect the energy dissipation effect of the energy dissipation device. In order to restore the original effect, the energy dissipation device needs to be desilted. Summary of the invention

[0006] The purpose of the present invention is to overcome the defects of the prior art and provide a rebound energy dissipation device suitable for debris flow control.

[0007] To achieve the above object, the present invention adopts the following technical solutions:

[0008] A rebound energy dissipation device suitable for debris flow control comprises a device body, and a steel pipe frame for support is arranged below the device body;

[0009] An energy dissipation belt is arranged on the surface of the device body, and an elastic frame for driving the energy dissipation belt to rebound up and down is arranged inside the frame of the steel pipe frame;

[0010] When the rebound energy dissipation device is in use, the device body is placed in a slot dug below the surface of the debris flow ramp, and when the debris flow passes over the device body, the energy dissipation belt and the elastic frame can undergo elastic deformation.

[0011] Preferably, the device body is distributed in a rectangular frame shape and comprises two groups of No. 1 pipes, No. 2 pipes and energy dissipation belts, and the No. 1 pipes, No. 2 pipes and energy dissipation belts are all made of rubber material.

[0012] Preferably, the steel pipe frame includes a plurality of steel pipe columns, a No. 1 steel pipe and a No. 2 steel pipe. The No. 1 pipe, the No. 2 pipe and the steel pipe columns are respectively distributed on the X, Y and Z axes. The No. 1 steel pipe is used to connect the steel pipe column with the No. 1 pipe, and the No. 2 steel pipe is used to connect the steel pipe column with the No. 2 pipe.

[0013] Preferably, the steel pipe column is located below the ground surface of the debris flow ramp, and when the No. 1 pipeline and the No. 2 pipeline are in use, their upper surfaces are always located below the ground surface of the debris flow ramp.

[0014] Preferably, the surface of the energy dissipation belt is provided with a plurality of protrusions, a flat belt surface is provided between adjacent protrusions, and both sides and the upper surface of the protrusions are provided as a slope surface and a top surface respectively.

[0015] Preferably, the elastic frame comprises a plurality of bottom steel pipes, a spring steel pipe, a No. 1 force transmission steel pipe and a No. 2 force transmission steel pipe, the bottom steel pipe is used to connect two groups of adjacently distributed steel pipe columns, the spring steel pipe is welded to the surface of the bottom steel pipe, and the spring steel pipe is sequentially assembled with springs and ribbed steel pipes from bottom to top, and one end of the ribbed steel pipe is welded to the surface of the No. 1 force transmission steel pipe, and the No. 2 force transmission steel pipe is welded to the surface of the No. 1 force transmission steel pipe.

[0016] Preferably, the steel tube frame and the elastic frame can be connected by welding at the intersection.

[0017] Preferably, a circular steel plate is welded to the open end at the top of the spring steel tube, and a through hole for passing the ribbed steel tube is opened in the center of the circular steel plate, and the surface of the ribbed steel tube is provided with ribs which are always located in the inner cavity of the spring steel tube.

[0018] Compared with the prior art, the present invention provides a rebound energy dissipation device suitable for debris flow control, which has the following beneficial effects:

[0019] The device body used in the present invention can well adapt to the deformation caused by gravity of the debris flow, and at the same time consume the energy of the debris flow. The use of the elastic frame can further absorb the energy generated by the debris flow. After the debris flow passes through the elastic frame and the energy dissipation belt, it rebounds and the device body returns to its original state.

[0020] At the same time, the rebound energy dissipation devices can be arranged at intervals on the same debris flow slope to achieve multi-level energy dissipation treatment of debris flow;

[0021] The device will not cause debris flow siltation when in use, so there is no need to perform silt removal after the debris flow passes. At the same time, in the device, the rubber outside the steel pipe can protect the steel pipe. The device body, the energy dissipation belt and the steel pipe can all be recycled for processing and reuse.

[0022] The invention has a simple structure, is convenient to construct, and can be widely used. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 Schematic diagram of the actual layout of the rebound energy dissipation device for debris flow control;

[0024] Figure 2 A top view of the rebound energy dissipation device for debris flow control before installation;

[0025] Figure 3 The overall structure diagram of the rebound energy dissipation device for debris flow control;

[0026] Figure 4 It is a schematic diagram of the overall structure of the device body and the energy dissipation belt;

[0027] Figure 5 It is a schematic diagram of the steel pipe frame structure;

[0028] Figure 6 It is a three-dimensional schematic diagram of a steel tube frame;

[0029] Figure 7 It is a three-dimensional schematic diagram of the steel tube frame and the elastic frame;

[0030] Figure 8 It is a cross-sectional schematic diagram of the rebound energy dissipation device for debris flow control after installation;

[0031] Fig. 9 A cross-sectional schematic diagram of the rebound energy dissipation device for debris flow control after installation in the use state;

[0032] Fig.10 This is a schematic diagram of the AA section of the rebound energy dissipation device for debris flow control during debris flow.

[0033] Figure numerals: 1. Device body; 101. Pipeline No. 1; 102. Pipeline No. 2; 103. Energy dissipation belt; 1031. Flat belt surface; 1032. Slope surface; 1033. Top surface; 2. Steel pipe frame; 201. Steel pipe column; 202. Steel pipe No. 1; 203. Steel pipe No. 2; 3. Slot; 4. Debris flow ramp; 5. Elastic frame; 501. Bottom steel pipe; 502. Spring steel pipe; 503. Ribbed steel pipe; 5031. Rib; 504. Force transmission steel pipe No. 1; 505. Force transmission steel pipe No. 2; 506. Spring; 507. Round steel plate. DETAILED DESCRIPTION

[0034] The following is combined with Figure 1 , further illustrating a specific implementation of a rebound energy dissipation device suitable for debris flow control of the present invention. A rebound energy dissipation device suitable for debris flow control of the present invention is not limited to the description of the following embodiments.

[0035] This embodiment provides a specific structure of a rebound energy dissipation device suitable for debris flow control, such as Figure 1-10 As shown, a rebound energy dissipation device suitable for debris flow control includes a device body 1, and a steel pipe frame 2 for support is arranged below the device body 1;

[0036] An energy dissipation belt 103 is provided on the surface of the device body 1, and an elastic frame 5 for driving the energy dissipation belt 103 to rebound up and down is provided inside the frame of the steel pipe frame 2;

[0037] The device body 1 and the elastic frame 5 therein can be used to consume the energy of debris flow;

[0038] When the rebound energy dissipation device is in use, the device body 1 is placed in a slot 3 dug below the surface of the debris flow ramp 4, and when the debris flow passes over the device body 1, the energy dissipation belt 103 and the elastic frame 5 can undergo elastic deformation.

[0039] like Figure 1-4 As shown, the device body 1 is distributed in a rectangular frame, and includes two groups of No. 1 pipes 101, No. 2 pipes 102 and energy dissipation belts 103, and the No. 1 pipes 101, No. 2 pipes 102 and energy dissipation belts 103 are all made of rubber material.

[0040] The rubber sleeve in the main body 1 of the above device should be close to the steel pipe, and the outer contour of the formed rubber pipe should be circular; the rubber material inside the area surrounded by the four rubber pipes (specifically the No. 1 pipe 101 and the No. 2 pipe 102) has a raised energy dissipation belt 103, and the energy dissipation belts 103 are arranged in parallel at intervals;

[0041] Specifically, pipeline No. 101 is parallel to the flow direction of the debris flow, and pipeline No. 2 102 is perpendicular to the flow direction of the debris flow; in order to ensure the working performance of the rebound energy dissipation device for debris flow control, the outer diameter of the steel pipe shall not be less than 100 mm, the inner diameter of pipeline No. 101 and pipeline No. 2 102 shall be equal to the outer diameter of the steel pipe, and the wall thickness of pipeline No. 101 and pipeline No. 2 102 shall not be less than 50 mm; the thinnest thickness of the device body 1 shall not be less than 40 mm.

[0042] In order to improve the energy dissipation effect of the device body 1, the width of the top surface 1033 of the energy dissipation belt 103 should not be less than 100 mm; the slope length of the slope 1302 of the energy dissipation belt 103 ranges from 100 mm to 200 mm, and the slope angle ranges from 45° to 90°; the length of the plane 1301 between adjacent energy dissipation belts 103 is 3-4 times the width of the top surface 1033 of the energy dissipation belt 103.

[0043] like Figure 5-7 As shown, the steel pipe frame 2 includes a plurality of steel pipe columns 201, a No. 1 steel pipe 202 and a No. 2 steel pipe 203. The No. 1 pipeline 101, the No. 2 pipeline 102 and the steel pipe column 201 are respectively distributed on the X, Y and Z axes. The No. 1 steel pipe 202 is used to connect the steel pipe column 201 with the No. 1 pipeline 101, and the No. 2 steel pipe 203 is used to connect the steel pipe column 201 with the No. 2 pipeline 102.

[0044] Specifically, a portion of both ends of the steel pipes of the non-column part of the steel pipe frame 2 is cut off and welded together to form a rectangular frame, and welds are made between the No. 1 steel pipe 202, the No. 2 steel pipe 203 and the connecting ends of the steel pipe column 201; the No. 1 steel pipe 202 is parallel to the flow direction of the debris flow, and the No. 2 steel pipe 203 is perpendicular to the flow direction of the debris flow;

[0045] The length of the above-mentioned No. 2 steel pipe 203 is between 2000-3500mm, the ratio of the length of the No. 2 steel pipe 203 to the No. 1 steel pipe 202 is 2.5-4, the height of the steel pipe column 201 is not higher than 2000mm, the outer diameter of the steel pipe column 201 is 20mm larger than the outer diameters of the No. 1 steel pipe 202 and the No. 2 steel pipe 203, and the wall thickness of the steel pipe column 201 is equal to the wall thickness of the No. 1 steel pipe 202 and the No. 2 steel pipe 203.

[0046] like Figure 3 As shown, the first steel pipe 202 passes through the first pipeline 101, and the second steel pipe 203 passes through the second pipeline 102; Figure 5 As shown, both ends of the No. 1 steel pipe 202 and the No. 2 steel pipe 203 are partially cut off, and the cut parts are welded together to form four welds in total; Figure 6 As shown, a portion of the four steel pipe columns 201 near the top is dug out to allow a corner of the rectangular frame formed by the No. 1 steel pipe 202 and the No. 2 steel pipe 203 to enter, and all the steel pipe columns 201 and all the No. 1 steel pipes 202 and No. 2 steel pipes 203 are spliced ​​and welded to form four welds in total.

[0047] like Figure 3 As shown, the steel pipe column 201 is located below the ground surface of the debris flow ramp 4, and when the No. 1 pipeline 101 and the No. 2 pipeline 102 are in use, their upper surfaces are always located below the ground surface of the debris flow ramp 4.

[0048] like Fig. 9 As shown, the surface of the energy dissipation belt 103 is provided with a plurality of protrusions, and a flat belt surface 1031 is provided between adjacent protrusions, and both sides and the upper surface of the protrusions are provided with a slope surface 1032 and a top surface 1033 respectively.

[0049] like Figure 3 As shown, the elastic frame 5 includes a plurality of bottom steel pipes 501, spring steel pipes 502, a first force transmission steel pipe 504 and a second force transmission steel pipe 505. The bottom steel pipe 501 is used to connect two groups of adjacently distributed steel pipe columns 201. The spring steel pipe 502 is welded to the surface of the bottom steel pipe 501, and the spring 506 and the ribbed steel pipe 503 are sequentially assembled in the spring steel pipe 502 from bottom to top, and one end of the ribbed steel pipe 503 is welded to the surface of the first force transmission steel pipe 504, and the second force transmission steel pipe 505 is welded to the surface of the first force transmission steel pipe 504;

[0050] The No. 1 force transmission steel pipe 504 is parallel to the energy dissipation belt 103 ; the upper surface of the No. 1 force transmission steel pipe 504 parallel to the energy dissipation belt 103 is welded to the No. 1 force transmission steel pipe 505 of a square cross section perpendicular to the energy dissipation belt 103 .

[0051] like Figure 3 As shown, the steel tube frame 2 and the elastic frame 5 can be connected by welding at the intersection.

[0052] like Figure 7 As shown, a circular steel plate 507 is welded to the open end of the top of the spring steel tube 502, and a through hole for passing the ribbed steel tube 503 is opened in the center of the circular steel plate 507, and a rib 5031 is provided on the surface of the ribbed steel tube 503 which is always located in the inner cavity of the spring steel tube 502;

[0053] Specifically, in order to ensure the performance and safety of the rebound energy dissipation device for debris flow control, the elastic frame 5 needs to be parameter controlled; the outer diameter of the bottom steel pipe 501 is equal to the wall thickness of the No. 1 steel pipe 202 and the No. 2 steel pipe 203; the outer diameter of the spring steel pipe 502 is 20 mm smaller than the outer diameter of the bottom steel pipe 501, the maximum outer diameter of the spring 506 is equal to or smaller than the inner diameter of the spring steel pipe 502, the stiffness coefficient of the spring 506 is not less than 40 kN / m, and the compression distance design value of the spring 506 is controlled within 100-200 mm;

[0054] The outer diameter of the ribbed steel pipe 503 is 20mm smaller than that of the spring steel pipe 502; the outer diameter of the No. 1 force transmission steel pipe 504 parallel to the energy dissipation belt 103 is 40-60mm, and the wall thickness is not less than 5mm; the side length of the square No. 2 force transmission steel pipe 505 perpendicular to the energy dissipation belt 103 is not less than 20mm, and the wall thickness is not less than 2mm.

[0055] The distance between the bottom surface of the elastic frame 5 and the device body 1 is controlled within 200-300 mm; the height of the elastic frame 5 in the direction parallel to the steel pipe column 201 is controlled by the compression distance of the spring 506 and the distance between the elastic frame 5 and the device body 1.

[0056] like Figure 1 and 2 As shown, when the rebound energy dissipation device for debris flow control is actually arranged, the No. 2 steel pipe 203 and the No. 2 pipeline 102 should be arranged perpendicular to the flow direction of the debris flow, and the No. 2 steel pipe 202 and the No. 1 pipeline 101 should be arranged parallel to the flow direction of the debris flow.

[0057] The rebound energy dissipation device for debris flow control is actually arranged in the debris flow ramp 4, and its A-A section is a section parallel to the flow direction of the debris flow; the main body 1 of the rubber device and the elastic frame 5 are deformed by the gravity and impact force of the debris flow, thereby consuming the energy of the debris flow, and the debris flow continues to flow along the oblique downward flow direction, and is hindered by the energy dissipation belt 103, which reduces the energy of the debris flow again; when the debris flow ends, the rebound energy dissipation device for debris flow control can return to the non-working state, see Figure 8 .

[0058] In actual arrangement, the rebound energy dissipation devices for debris flow control can be arranged at intervals according to the length of the debris flow ramp 4 to achieve step-by-step energy dissipation of the debris flow along the direction of the debris flow; the interval arrangement distance of the rebound energy dissipation devices for debris flow control is 2-3 times the length of the No. 1 steel pipe 202 parallel to the direction of the debris flow.

[0059] The above contents are further detailed descriptions of the present invention in combination with specific preferred embodiments, and it cannot be determined that the specific implementation of the present invention is limited to these descriptions. For ordinary technicians in the technical field to which the present invention belongs, several simple deductions or substitutions can be made without departing from the concept of the present invention, which should be regarded as falling within the protection scope of the present invention.

Claims

1. A rebound energy dissipation device suitable for debris flow control, Features: The device comprises a device body (1), wherein a supporting steel pipe frame (2) is arranged below the device body (1); An energy dissipation belt (103) is arranged on the surface of the device body (1), and an elastic frame (5) for driving the energy dissipation belt (103) to rebound up and down is arranged inside the frame of the steel pipe frame (2); When the rebound energy dissipation device is in use, the device body (1) is placed in a slot (3) dug below the surface of a debris flow ramp (4), and when the debris flow passes over the device body (1), the energy dissipation belt (103) and the elastic frame (5) can undergo elastic deformation; The device body (1) is arranged in a rectangular frame and comprises two groups of a No. 1 pipe (101), a No. 2 pipe (102) and an energy dissipation belt (103), and the No. 1 pipe (101), the No. 2 pipe (102) and the energy dissipation belt (103) are all made of rubber material; The steel pipe frame (2) comprises a plurality of steel pipe columns (201), a No. 1 steel pipe (202) and a No. 2 steel pipe (203); the No. 1 pipe (101), the No. 2 pipe (102) and the steel pipe columns (201) are respectively distributed on the X, Y and Z axes; the No. 1 steel pipe (202) is used to connect the steel pipe column (201) and the No. 1 pipe (101); the No. 2 steel pipe (203) is used to connect the steel pipe column (201) and the No. 2 pipe (102); the No. 1 steel pipe (202) passes through the No. 1 pipe (101); and the No. 2 steel pipe (203) passes through the No. 2 pipe (102); The surface of the energy dissipation belt (103) is provided with a plurality of protrusions, a flat belt surface (1031) is provided between adjacent protrusions, and both sides and the upper surface of the protrusions are provided as a slope surface (1032) and a top surface (1033) respectively.

2. A rebound energy dissipation device suitable for debris flow control as claimed in claim 1, Features: The steel pipe column (201) is located below the ground surface of the debris flow ramp (4), and the upper surfaces of the No. 1 pipeline (101) and the No. 2 pipeline (102) are always located below the ground surface of the debris flow ramp (4) when in use.

3. A rebound energy dissipation device suitable for debris flow control as claimed in claim 1, Features: The elastic frame (5) comprises a plurality of bottom steel pipes (501), spring steel pipes (502), a first force transmission steel pipe (504) and a second force transmission steel pipe (505), wherein the bottom steel pipe (501) is used to connect two groups of adjacently distributed steel pipe columns (201), the spring steel pipe (502) is welded to the surface of the bottom steel pipe (501), and the spring steel pipe (502) is sequentially equipped with a spring (506) and a ribbed steel pipe (503) from bottom to top, and one end of the ribbed steel pipe (503) is welded to the surface of the first force transmission steel pipe (504), and the second force transmission steel pipe (505) is welded to the surface of the first force transmission steel pipe (504).

4. A rebound energy dissipation device suitable for debris flow control as claimed in claim 1, Features: The steel pipe frame (2) and the elastic frame (5) can be connected by welding at the intersection.

5. A rebound energy dissipation device suitable for debris flow control as claimed in claim 3, Features: A circular steel plate (507) is welded to the open end at the top of the spring steel tube (502), and a through hole for passing the ribbed steel tube (503) is provided at the center of the circular steel plate (507). The surface of the ribbed steel tube (503) is provided with a rib (5031) that is always located in the inner cavity of the spring steel tube (502).

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