金沙江白鹤滩海子沟泥石流与高含沙水流调查研究  

An Investigation of Debris Flow and Hyper-concentrated Flow at Haizi Gully in Baihetan Reservoir Area on Jinsha River

作　　者：薛宏程[1] 李俊[1] 吕全伟[2] 王元欢[3] 

机构地区：[1]四川大学水力学与山区河流开发保护国家重点实验室,四川成都610065 [2]四川大学水利水电学院,四川成都610065 [3]中国科学院水利部成都山地灾害与环境研究所,四川成都610041

出　　处：《中国农村水利水电》2013年第8期73-76,共4页China Rural Water and Hydropower

摘　　要：干旱河谷环境下单沟泥石流向高含沙水流演化是泥石流防治工程的关键问题。以海子沟泥石流物源、地形和降雨量分析为基础,通过坑探方法、容重方法以及一次泥石流固体物质总量方法,分析了海子沟泥石流向高含沙水流演化的特征。结果表明:堰塞湖的存在对泥石流起到了缓冲作用,使泥石流容易转化为高含沙水流,降低了海子沟沟口工程在施工期内可能受到的危害。The transition of debris flow to hyper-concentrated flow is a key problem involved in debris flow engineering control.Based on an analysis of material source,topography and rainfall for debris flow in Haizi Gully,this paper studies the features of hyper-concentrated flow and debris flow through the methods of pitting,density and solid volume in one surge.The results indicate that the topography of deposit formed by dammed lake has a buffer action on debris flow,which has reduced the risk of the gully engineering in the period of construction.

关 键 词：堰塞坝 泥石流 高含沙水流 演化 

分 类 号：P332.5[天文地球—水文科学]