席家沟泥石流形成机制及治理工程措施研究

汶川地震引发很多次生地质灾害，震后山体松散，在暴雨条件下极易形成泥石流。以汶川席家沟支沟为研究对象，在对其发育特征、形成机制进行研究的基础上，分析了泥石流运动特征，并据此采取治理工程措施。实践证明，席家沟泥石流的治理措施可行、有效，成功保护了沟谷下游人民生命财产安全。

Study on Formation Mechanism of Debris Flow in Xijia Valley and the Engineering Measures for Control

There have many secondary geological disasters after the attack of Wenchuan Earthquake, and the mountain has been so loosened that debris flow may be caused easily in case of rainstorm. Herein the branch gully of Xijia Valley in Wenchuan was taken as the object to study its development features and formation mechanism, and then analyze the motion characteristics of the debris flow. On this basis, the engineering measures for control were adopted. The practice has proved that the engineering measures to control the debris flow in Xijia Valley are feasible and effective, and can protect the lives and property of the people living in the lower reaches of the Valley.