潘家沟泥石流灾害特征及其综合治理

对四川省青川县潘家沟泥石流形成条件、发育机制及特征进行了研究。从地形地貌、地质环境、物源、降水等方面较全面地分析了潘家沟泥石流形成的条件,查明了泥石流形成的关键因素。通过定性分析和流量、流速及一次冲出固体量等参数的定量计算分析,较细致地研究了泥石流的各项特征,得出泥石流是由暴雨诱发的中频中等规模的泥石流。进一步分析了泥石流的危害特征,治理的必要性和紧迫性。针对危害特征,对泥石流采取了以拦挡工程为主、辅以排导槽、防护堤及生物措施的综合治理方案。工程实施后, 收到良好的社会、经济效益,保护了当地群众的生命财产安全。

Disaster Features of Panjiagou Debris Flow and Its Management

This article researched the forming conditions,developing mechanism and characteristic of Panjiagou debris flow.Through analysis of landform,geological environment,provenance and rainfall,the key factors of debris flow formation were identified.Through qualitative analysis and quantitative analysis on flow velocity and flow solids and so on,it is concluded that this debris flow is rainstorm-induced and is a MF medium scale debris flow.The damage of the debris flow and necessary and urgency for its treatment were analyzed.Some measures have been taken such as blocking dam,Platoon guide groove,bulwark and biological measures.The application of engineering measures received good social and economic benefit.The local people’s life and property security is protected effectively.