摘要
受汶川地震的影响,西南地区地质灾害近来年频繁发生,尤其是泥石流灾害。在地震作用下,有更多的松散物源参与泥石流的运动,加大了泥石流的危害性和暴发频率。本文收集了热河沟的地质、气象和水文等资料,通过分析该沟的地形、物源和水源条件来分析泥石流的形成过程,结合现场调查取证来综合分析泥石流的形成机制,为泥石流的治理提供更为可靠的依据。分析表明,热河沟泥石流的成因机制为"暴雨-溃决"型。
The Wenchuan Earthquake on May 20, 2008, resulted in frequent geohazards, especially debris flow in Southwest China. The present paper has a discussion on genetic mechanism for the Rehegou debris flow based on geological, hydrogeological, topographical and meteorological data, providing scientific basis for control of the debris flow. The results indicate the Rehegou mud flow as a heavy rains-dam type debris flow.
出处
《四川地质学报》
2016年第2期306-309,共4页
Acta Geologica Sichuan
关键词
泥石流
发育特征
成因机制
热河沟
debris flow
development
genetic mechanism
Rehe Valley
