震后都汶公路沿线泥石流灾害分布与活动特征

针对山区地质背景复杂、地貌起伏大和地质灾害分布广的特点，以都汶公路沿线泥石流为研究对象，通过详细的野外调查，系统研究都汶公路泥石流危害特点，查明公路沿线泥石流灾害的分布，分析泥石流对山区公路的影响，归纳泥石流灾害的形成条件和活动特征。针对泥石流灾害现状，对都汶公路泥石流发展趋势进行有益探讨，为山区公路泥石流治理提供参考。

Features of Distribution and Activity of Debris Flow Disasters Along Dujiangyan--Wenchuan Highway after Earthquake

Aiming at the features of complicated geological background, landscape rolling and wide distribution of geological disasters in mountainous area, with debris flow along Dujiangyan- Wenchuan Highway as the object of study, this paper systematically studies the features of debris flow hazards, finds out distribution of debris flow hazards along the highway analyzes influences of debris flow on highways in mountainous and sums up formation conditions and activity characteristics of debris flow disasters via detailed field investigation. In allusion to the current situations of debris flow disasters, the paper makes helpful discussions for development tendency of debris flow along Dujiangyan- Wenchuan Highway to provide a reference for treatment of debris flow on highways in mountainous area.