关键词: 泥石流, 特征, 启动, 机理

Abstract: Debris flow is a kind of high indicator compound l iq uid composed of water,sand and little rock,which is the movement of solid and li quid whose particles have great difference in size.In the debris flows movemen t sand and little rock mainly move in rolling and leaping.Debris flow is a short stage phenomena for a short time in the course of the valleys radical evoluti on,and its a typical calamity course.Based on explorations in-situ spot and d eeply researches,the author analyzed the the basic characters of the highways debr is flows,also proposed the debris flows startup conditions and types.

Key words: debris flow, character, startup, mechanism