Dry-hot valley debris flow treatment method

Abstract

The invention belongs to the technical field of natural disaster control and discloses a dry-hot valley debris flow treatment method. Blocking and bed reinforcement engineering is arranged, debris flow solid loose material sources are stabilized, blocking and bed reinforcement are used as the focus of a whole trench, in combination with proper drainage engineering and plant engineering, movement of the loose material sources of debris flow material source areas is controlled in a comprehensive treatment mode, and meanwhile, drainage troughs on the downstream part are dredged; the engineering are arranged with the focus of the safety of farmlands of downstream accumulation areas and the safety of villager accumulation areas; engineering measures mainly comprise existing engineering reinforcement, that is, the built drainage troughs are heightened, the heightening height is 1.5 m, and the total length is 4120 m; blocking is used as the focus, and two blocking dams are arranged in the range of 1390-1430 m of the downstream part of the main trench; and blocking dams are arranged on the downstream part, drainage troughs are built in combination with the built drainage troughs, and a complete drainage system is formed. Through the method, the obvious effect of whole engineering is achieved advantageously, and the engineering is combined with city planning favorably.

Description

technical field [0001] The invention belongs to the technical field of natural disaster control, and in particular relates to a method for controlling mud-rock flow in dry-hot valley areas. Background technique [0002] The main urban area of ​​Dongchuan is built on the fan of debris flow accumulation in front of the mountain on the west side of Guniu Mountain. It is a city surrounded by debris flow. Six major debris flow ditches, namely Daqiao River, Tianbagan Ditch, Shengou, Nilagu Ditch, Shiyang Ditch and Lali Ditch, developed in sequence from north to south near the urban area. Among them, Daqiaohegou and Tianbagangou are located in the north of the city, Laligou is located in the south of the city, and Shengou, Nilagugou and Shiyanggou are facing the main urban area of ​​Dongchuan. Six debris flow ditches run from east to west through the urban area and flow into the Dabai River in the upper reaches of the Xiaojiang River. Shengou and Shiyanggou, which directly threat...

AI Technical Summary

Problems solved by technology

[0003] To sum up, the problems existing in the existing technology are: deep ditch, Nilagu ditch, Tianba main ditch and Lali river ditch have only local debris flow prevention and control projects, the protection standards are low, and engineering measures are weak. It is urgent to deal with these debris flow Carry out corresponding system governance work

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