Title: Hazard assessment of debris flow in Fengxian County of Shaanxi Province
Abstract:This paper discussed the hazard assessment of debris flow in Fengxian County,Shaanxi Province using hierarcly analysis process based on fuzzy mathematics methods. According to the debris flow hazard a...This paper discussed the hazard assessment of debris flow in Fengxian County,Shaanxi Province using hierarcly analysis process based on fuzzy mathematics methods. According to the debris flow hazard assessment practice at home and abroad,as well as the geo-hazards detailed field survey,this paper analyzed the influence elements and chooses seven factors as evaluation factors such as terrain factor,loose material,rainfall,vegetation and so on. Then,the paper completes the debris flow hazard assessment and explores the regional debris flow evaluation methods and work flow. The results indicate that,the development of debris flow controlled by topography,loose material reserves and rainfall,in which topography is a decisive factor; in the study area,there are four debris flows at high risk,which are mainly slag mudflow and ravine mudflow,and eight at moderate risk, twenty at low risk and seven at weak risk. Therefore,it is necessary for the local government to strengthen monitoring,take engineering treatment,removing and avoiding methods for disaster prevention and reduction.Read More
Publication Year: 2014
Publication Date: 2014-01-01
Language: en
Type: article
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