汶川地震区特大泥石流物源集中启动模式和特征  

The star-up mode on large debris flow material source in Wenchuan earthquake region

作　　者：郝红兵[1] 赵松江[2] 李胜伟[2] 李德华[2] 曹楠[2] 

机构地区：[1]中国地质科学院探矿工艺研究所,四川成都611734 [2]四川省地矿局成都水文地质工程地质中心,四川成都610081

出　　处：《水文地质工程地质》2015年第6期159-165,170,共8页Hydrogeology & Engineering Geology

基　　金：中国地质调查局地质调查专项(1212011220126);四川省科技计划(2012SZ0191)

摘　　要：物源的集中启动,是汶川地震区大规模泥石流发生过程中的关键因素,总结物源集中启动模式,对汶川地震区泥石流防治具有重要意义。文章在调查总结"5.12"地震以来一些重大泥石流发育特点的基础上,将物源集中启动归纳为归流拉槽、深切揭底和堵塞溃决等三种模式,并总结了典型泥石流物源集中启动的组合方式,针对各种物源集中启动模式提出了有针对性的防治思路。The material source is the key of the large debris flow in the Wenchuan earthquake region. It is of important significance to summarize the star-up mode for control the debris flow. Based on the investigation of characteristics of the major debris flow,the three star-up mode incuding the stream induced slot,the bottom induced deep cutting and the burst induced occlusion was established. The combination mode was summarized,and the control method was also proposed according to the star-up mode of the debris flow source.

关 键 词：汶川地震区 泥石流 物源 启动模式 

分 类 号：P642.23[天文地球—工程地质学]