摘要
Abstract
This study focuses on the difficult problems of preventing and controlling gully-type debris flow disasters.By taking the debris flow in Songmao Gully,Laowo Town,Lushui City,Yunnan Province as a typical case,this study calculated the dynamic characteristic parameters of the debris flow,such as flow velocity and discharge,based on conducting comprehensive investigations into the topographical and geological characteristics of the debris flow,as well as analyzing its formation conditions and movement processes.Based on the principles of source fixation,interception,and flow dredging,comprehensive treatment measures of interception dams+comb-shaped dams+check dam groups were proposed.By setting up interception dams and comb-shaped dams in the debris flow passage area,we separated the muddy water and stones in the debris flow.Moreover,the interception dams,comb-shaped dams and check dam groups were set up to play the role of"fixing the source"for the debris flow,reducing the destructive force of the debris flow.Combining with the topography within the gully,an artificial staircase-natural terrain mud storage and energy dissipation system was formed,providing an engineering practice example for reference in the prevention and control of similar debris flow disasters.关键词
泥石流防治/形成条件/动力学特征参数Key words
Debris flow prevention and control/Formation conditions/Dynamic characteristic parameters分类
地质学
