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A hedging energy dissipation type debris flow diversion system

A shunt system and mud-rock flow technology, applied in construction, artificial waterways, water conservancy projects, etc., can solve the problems of unsatisfactory prevention and control of mud-rock flow, and achieve the effect of strong anti-geological disaster ability, reduced impact force and destructive effect

Active Publication Date: 2021-07-30
NORTH CHINA UNIV OF WATER RESOURCES & ELECTRIC POWER +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to solve the problem of unsatisfactory prevention and control of debris flow in the existing way of setting up interception dams, the present invention provides a hedge energy dissipation debris flow diversion system, the core of which is a diversion dam and a hedge guide device that cooperate with each other, and the diversion dam is used to guide the debris flow into Two streams, and the hedging guide device guides and changes the flow direction of the two debris flows, so that the kinetic energy of the two debris flows can be eliminated after they converge, thereby greatly reducing the impact and destructiveness of the debris flow, and the diversion system has a strong ability to resist geological disasters

Method used

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  • A hedging energy dissipation type debris flow diversion system
  • A hedging energy dissipation type debris flow diversion system
  • A hedging energy dissipation type debris flow diversion system

Examples

Experimental program
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Effect test

Embodiment 1

[0036] Such as figure 1 and 3 As shown, a hedging energy dissipation debris flow diversion system, the diversion system is set in the debris flow channel 2 formed between the highlands 1 on both sides, the diversion system includes a diversion dam 4 and a hedge guide device 5, wherein the The diverter dam 4 includes a semi-conical first dam body 401 arranged in the middle of the debris flow channel 2, and the tip of the semi-conical shape faces the direction of the debris flow, thereby forming two first diverter channels 405 on both sides thereof;

[0037] The counter guide device 5 includes a first arc-shaped guide dam 501 and a second arc-shaped guide dam 502 respectively arranged in front of the flow direction of the two first branch channels 405, wherein the first arc-shaped guide dam 501 and the second arc-shaped guide dam 501 Shaped guide dams 502 are arranged obliquely on both sides of the debris flow channel 2, and the first arc-shaped guide dam 501 and the second arc...

Embodiment 2

[0045] This embodiment is an improvement made on the basis of Embodiment 1, its basic structure is the same as that of Embodiment 1, and the improvements are as follows: Figure 6 As shown, the two sides of the middle part of the first dam body 401 are symmetrically provided with an impact deflection plate 407, and the free end of the impact deflection plate 407 is inclined to extend upstream, and its free end is in contact with the side of the debris flow channel 2. There is a gap, so that the debris flow of the first diversion channel 405 impacts on the impact redirection plate 407 and then changes direction and slows down again, thereby forming a silting zone between its upstream surface and the side wall of the first dam body 401, A stagnation zone is formed on its back water surface and the side wall of the first dam body 401 .

Embodiment 3

[0047] This embodiment is an improvement made on the basis of Embodiment 2, its basic structure is the same as that of Embodiment 2, and the improvements are as follows: Figure 7 As shown, the two sides of the rear part of the first dam body 401 are symmetrically provided with a secondary splitter plate 408, the secondary splitter plate 408 is V-shaped distributed along the debris flow direction, and its upstream end is connected to the impact redirection plate 407. There is a gap between the free ends to form a flow channel, and another flow channel is formed between the upstream end and the side of the debris flow channel 2; the V-shaped tip of the secondary splitter plate 408 is positioned at the side of the debris flow channel 2, thereby A debris flow deceleration zone 409 with two large ends and a small middle portion is formed between the secondary splitter plate 408 and the high ground 1 on this side.

[0048] In this embodiment, the upstream end of the secondary diver...

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Abstract

A hedging energy dissipation debris flow diversion system, the diversion system is set in the debris flow channel formed between the highlands on both sides, including a diversion dam and a hedge guide device, the diversion dam includes a first dam body arranged in the middle of the debris flow channel, And the tip of the semi-conical shape is facing the direction of the debris flow, thereby forming two first flow channels on both sides. The hedging guide device includes a first arc-shaped guide dam and a second arc-shaped guide dam respectively arranged in front of the flow direction of the two first flow channels. Two arc guide dams. The core of the present invention is the diverter dam and the hedge guide device that cooperate with each other. The diverter dam is used to guide the debris flow into two streams, and the hedge guide device guides and changes the flow direction of the two debris flows, so that the kinetic energy of the two streams can be eliminated after the hedge converges, and then greatly The impact force and destructiveness of debris flow are reduced, and the diversion system has a strong ability to resist geological disasters, even if it is partially damaged, it will not have a great impact on the prevention and control effect.

Description

technical field [0001] The invention relates to the field of prevention and control of geological disaster mud-rock flow, in particular to a hedging and energy-dissipating mud-rock flow diversion system. 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 power. Debris flows often destroy highways, railways and other transportation facilities and even villages and towns, causing huge losses. [0003] The whole process of debris flow generally only takes a few hours, and the shortest is only a few minutes. It is a natural disaster widely distributed in some countries with special topography and landform conditions. This is a mixed flow of soil, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E02B5/00E02B5/02E02B5/08
CPCE02B5/00E02B5/02E02B5/08E02B5/082E02B5/085
Inventor 王忠福陈永安王博李倩倩杨成才石风格
Owner NORTH CHINA UNIV OF WATER RESOURCES & ELECTRIC POWER
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