【摘要】 泥石流是一种高浓度的水、沙、砾混合流 ,是颗粒大小差异很大的固体和液体的联合运动 ,其中砂、砾主要按滚动及跃进状态迁移 ,是沟谷急剧演变的一个短历时的阶段性现象 ,属于典型的灾害地貌过程 .基于实地考察和深入的研究 ,笔者分析了公路泥石流的基本特征 ,并分析提出了泥石流的启动条件、类型及其相应的机理更多还原

【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 basic characters of the highways debr is flows,also proposed the debris flows startup conditions and types.更多还原