Debris flow blocking method
A mud-rock flow, the other side of the technology, applied in the field of prevention and control of geological disasters, mud-rock flow, can solve the problems of inconvenient people or animals living in the surrounding area, washed away roads, railways, villages and towns, losses, etc.
Active Publication Date: 2021-05-28
CHONGQING JIAOTONG UNIVERSITY
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- Description
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Problems solved by technology
Debris flows often destroy highways, railways and other transportation facilities and even villages and towns, causing huge losses
[0003] At present, the most commonly used debris flow control measures are the use of retaining structures, such as steel cable grid dams, grid dams, sieve dams, comb dams, permeable arch dams, etc. The existing dam-type retaining structures are all fixed projects, that is, completed The final engineering state is the state of use, and the dam body is always in a blocking state, causing inconvenience to the passage of people or animals living around
Method used
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[0030] The present invention will be further described in detail below in conjunction with a blocking system adopting the method of the present invention.
[0031] During specific implementation, a mud-rock flow retaining system includes a mud-rock flow retaining structure and a mud-rock flow prevention and control device. Set on the flat slope in the debris flow prevention area, a plurality of the debris flow blocking structures and a plurality of the debris flow prevention and control devices are arranged at intervals along the flow direction of the debris flow to be blocked, and the debris flow prevention area is prevented and controlled. When the debris flow breaks out, Through the layer-by-layer interception of the debris flow retaining structure and the debris flow prevention and control device, a good debris flow prevention effect can be obtained.
[0032] Such as Figure 1 to Figure 4 As shown, the debris flow blocking structure includes a buffer ditch 1 arranged hori...
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Abstract
The invention discloses a debris flow blocking method. The debris flow blocking method comprises the steps that before prevention and treatment, a debris flow blocking structure is arranged in a debris flow prevention and treatment area; the debris flow blocking structure comprises a buffer ditch, and the two sides of the buffer ditch are an upstream side and a downstream side; a fixing device is arranged on the downstream side of the buffer ditch; an overturning blocking plate is hinged to the fixing device and extends towards the upstream to form a covering part, and the other side of the overturning blocking plate extends to form a blocking part; the covering part of the overturning blocking plate is connected with the upstream side of the buffer ditch, and the depth of the buffer ditch is larger than the rotating radius of the covering part, so that the covering part of the overturning blocking plate can completely rotate into the buffer ditch and form a vertical blocking state; and the gravitational torque of the blocking part is larger than that of the covering part, so that the covering part of the overturning blocking plate can allow people or animals to pass under the covering state, and the overturning blocking plate can rotate to the blocking state when debris flow flows onto the covering part. The debris flow blocking method has the advantages that ordinary passing is facilitated, and the debris flow can be blocked by changing the form under the triggering action of the debris flow.
Description
technical field [0001] The invention relates to the technical field of prevention and control of geological disaster mud-rock flow, in particular to a mud-rock flow blocking method. Background technique [0002] Debris flow refers to a special torrent carrying a large amount of sediment and stones due to landslides caused by heavy rain or other natural disasters in mountainous areas or other areas with deep valleys and steep terrain. Debris flow has the characteristics of suddenness, fast flow rate, large flow rate, large material capacity and strong destructive force. Debris flows often destroy highways, railways and other transportation facilities and even villages and towns, causing huge losses. [0003] At present, the most commonly used debris flow control measures are the use of retaining structures, such as steel cable grid dams, grid dams, sieve dams, comb dams, permeable arch dams, etc. The existing dam-type retaining structures are all fixed projects, that is, com...
Claims
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Login to View More IPC IPC(8): E02B3/10E01F7/04
CPCE02B3/10E01F7/045
Inventor 范玮佳刘兆存梁梦辉
Owner CHONGQING JIAOTONG UNIVERSITY