From 2020 to 2021,three consecutive debris flow disasters broke out in Sancha Ditch,Angwu Village,LAN'an Township,Luding County,causing serious economic losses to local villagers.By means of field investigation,UAV aerial photography,historical image collection,field experiment and other means,this paper makes a detailed study on the characteristics,genetic mechanism and movement characteristics of the debris flow of the three consecutive debris flow disasters in the ditch,and systematically analyzes the formation mechanism of high-frequency debris flow induced by rainstorms in time and space.It provides scientific basis for understanding the formation mechanism and future evolution trend of high-frequency debris flow induced by heavy rainfall.
debris flowsuccessive burstsformation conditionsformation mechanismevolutionary law
万方数据
维普
