Risk analysis of debris flow based on grey correlation method

2018 International Conference on Civil and Hydraulic Engineering

土木建筑工程;水利工程

Zhu, Liu^1 ; Hao, Jiang^1 ; Lina, Xu^1

College of Civil Engineering, Jilin Jianzhu University, Changchun

130118, China^1

关键词: Evaluation methods;    Geographical conditions;    Grey correlation analysis methods;    Grey correlation methods;    Jilin Province;    Research status;    Slope gradients;    Vegetation coverage;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/189/4/042032/pdf
DOI  :  10.1088/1755-1315/189/4/042032

学科分类：土木及结构工程学

来源: IOP

【 摘 要 】

In this paper, the research status and evaluation methods of debris flow risk at home and abroad are analyzed. Finally used the grey correlation analysis method, according to the climate and geographical conditions of Jilin province has chosen six factor model (watershed cut density, loose source quantity per catchment area, vegetation coverage, main ditch slope, slope gradient, length of supply section), and determine each factor weight. Based on this, the risk level of six debris flow gullies in Longjing city was determined.