Movable diversion device for debris flow interception

Abstract

The invention relates to a movable diversion device for debris flow interception. The movable diversion device is arranged in a debris flow passage formed between highlands on two sides and comprisesa stopping and silting diversion dam and two movable flow guidance mechanisms. The stopping and silting diversion dam divides the debris flow into two streams and constructs multiple new stopping andsilting areas, so that the debris flow can slow down, settle down and partially stop. The movable flow guidance mechanisms can automatically judge whether partial interception is required according tothe flow size of the debris flow. When the flow of the debris flow is large, the movable flow guidance mechanisms are pushed to deflect to filter and divert the debris flow, and guide part of the filtered debris flow into the stopping and silting areas for storage. Therefore, the flow of the debris flow is reduced, and the impact and destructiveness of the debris flow are greatly reduced. Moreover, an interception system has strong resistance to geological hazards. Even if partial damage occurs, the prevention and control effect cannot be greatly affected.

Description

technical field [0001] The invention relates to the field of prevention and control of geological disaster mud-rock flow, in particular to a movable diversion device for intercepting 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 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] 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, water ...

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 method of setting up interception dams, the present invention provides a movable diversion device for intercepting debris flow, the core of which is a silt stop diversion dam and two movable diversion mechanisms. While dividing the debris flow into two streams, the dam has built several new silting zones, which can slow down, settle and partially stagnate the debris flow. The movable diversion mechanism can automatically determine whether part of the debris flow is needed according to the flow of the debris flow. Interception, when the flow of debris flow is large, the movable diversion mechanism is pushed to deflect, and then the debris flow is filtered and diverted, and part of the filtered debris flow is diverted to the silting area for storage, thereby reducing the flow rate of the debris flow and greatly reducing the flow rate of the debris flow. The impact force and destructiveness of debris flow, and the blocking system has a strong ability to resist geological disasters, even if some damage occurs, it will not have a great impact on the prevention and control effect

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