Study On Risk Assessment And Prevention Of Huangdai Gully Debris Flow In Changsha Village,Qingyuan Country

Debris flow natural disasters often occur in mountainous areas.It is the result of mass transport of sediment by solid and liquid motion.This phenomenon is the geographic and geological environment,weather and other factors of interaction,especially in the flood season,because under the action of hydrodynamic,mountains of loose soil,stop at the formation of debris flow,circulation and product such as link has the serious disaster.Qingyuan country is one of the most serious geological disasters in Liaoning province.As long as it is in the rapid stage of rainfall and debris flow frequency of natural disasters is very high,and the serious influence people's lives,pose threat to the lives of people and the environment,in addition to this,also the highway will be washed out and jam tunnel,etc.,affect residents' transportation.Especially on August 16,2013,Qingyuan country,debris flow hazards in the western and southern areas,mainly in the before Nankou town and big Su He township,disasters in collapsed houses,roads,farmland,a rough estimate the direct economic loss of 14.6 million yuan.Therefore,mudslide is a kind of disaster that threatens the safety of human life and property.It is necessary to attach great importance to it and take effective measures to prevent it.Paper in Qingyuan country Su He rural village of Changsha Huangdai Gully oversize mud-rock flow as the research object,on the basis of collecting a large number of data,focus on the yellow of the generation gap in the basin source distribution and storage conditions were investigated,through the debris flow scale,the spatial distribution characteristics and the composition of debris flow,the type of landslide and debris flow of the analysis of the causes,The research shows that the source of debris flow of debris flow is abundant,and the source of debris flow is abundant.In the case of rainfall conditions,the flow of debris flow can be directly related to rainfall.In addition,the study area is available for debris flow security stop deposition of the accumulation area of small,its destruction size and length of precipitation and rainfall have a certain relationship,once the debris flow disaster,will cause great harm.In this paper,the design of debris flow prevention and control is carried out,which provides a reference for the management of the disaster.