Debris flow multi-stage dissipative blocking structure

A debris flow and dissipation technology, applied in infrastructure engineering, protective equipment, dams, etc., can solve the problems of difficult to achieve long-term safety of governance projects, limited use range and blocking height, flexible net easily deformed, etc., to reduce later maintenance. The effect of workload, optimized load distribution, and reduced construction and installation workload

CN110004882APending Publication Date: 2019-07-12SOUTHWEST JIAOTONG UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2019-07-12

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Abstract

The invention relates to the technique of prevention of geological hazards, in particular to a debris flow prevention technique. The invention discloses a debris flow multi-stage dissipative blockingstructure, thus damage action of a debris flow can be lowered, and the disaster loss is relieved. According to the debris flow multi-stage dissipative blocking structure, from flowing area of the debris flow to the accumulation area, the debris flow multi-stage dissipative blocking structure is arranged in a step-by-step mode along debris flow channels from the upstream to downstream, and at leastincludes a flexible blocking net, a pile-carrying-type grid wall and a permeable buttress-type gravity dam. According to the debris flow multi-stage dissipative blocking structure, according to different geological conditions, types of the debris flows and the like, the matching structure of the flexible blocking net 2, the pile-carrying-type grid wall 3 and the permeable buttress-type gravity bam is reasonably selected, benefits of the investment in engineering construction can be given full play to the maximum extent, and cost benefit optimization is achieved. The debris flow multi-stage dissipative blocking system is very suitable for prevention of the debris flow disasters.
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Description

technical field

[0001] The invention relates to geological disaster prevention and control technology, in particular to mud-rock flow prevention technology, specifically a mud-rock flow multi-stage dissipation blocking structure system that can block large and small particles in the mud-rock flow step by step and consume the impact energy of the mud-rock flow. 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, snowstorm 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] Debris flow is a torrent formed by heavy rain and floods after saturation and d...

Examples

Embodiment

[0070] refer to figure 2 , the flexible retaining net structure in the debris flow multi-stage dissipative retaining structure system in this example includes two end support columns 6, a middle support column 7 located between the two end support columns 6, and a The top support rope 5 and the metal flexible net 8 between the support columns 6, the top support rope 5 is tensioned by the end support column 6 and the middle support column 7, and the metal flexible net 8 is connected with the top support rope 5; the end support column 8 It is connected with the end support rope 9, and the end of the end support rope 9 is connected with the anchor block 10, and the anchor block 10 is fixed in the stable formation.

[0071] The supporting rope 5 of this example adopts a stainless steel wire rope, and the metal flexible net 8 then adopts a stainless steel wire braided net to form.

[0072] refer to image 3 , the pile-supported grid wall structure in the debris flow multi-stage ...