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Risk Assessment of Debris Flow in Strong Earthquake Area by Mushui Lin; Yang Sun; Junping Zhou; Junhong Deng; Jinyang Zhu is a Agricultural and Biological Sciences article available to read on EtoBox.

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## Abstract The construction and operation of the Jiuzhaigou County bidding section of the Jiumian Expressway is affected by debris flow disasters. It is important to scientifically and reasonably evaluate the debris flow risk in the engineering area. Therefore, according to the data of topography, meteorology, hydrology and regional geological structure of the project area, 12 influencing factors, such as regional geological disasters, loose material reserves along the gully and maximum punching amount at one time, are selected as the evaluation indexes of debris flow risk assessment. Based on the catastrophe progression method, a mutation model of debris flow risk assessment suitable for the project area was established. The debris flow risk assessment mutation model was used to evaluate the debris flow risk of 8 trenches in the project area, and the applicability of the model is verified by comparing the actual occurrence history of debris flow in the trench with the evaluation results. The analysis results show that the risk of debris flow in four gullies of Gangou and Xiaganzuo in the bid section project area of Jiuzhaigou County of Jiumian Expressway is extremely dangerous, a

Who reads Risk Assessment of Debris Flow in Strong Earthquake Area?

Author

Mushui Lin; Yang Sun; Junping Zhou; Junhong Deng; Jinyang Zhu

Publisher

IOP Publishing

Published

2021

Language

EN

Field

Agricultural and Biological Sciences (Physical Sciences)