摘要
客基沟为一老泥石流沟,受汶川地震的影响,沟内存在大量松散固体物质,潜在危害性大。在分析流域概况及泥石流形成区、流通区和堆积区基本特征的基础上,对客基沟形成泥石流的地形、水源、物源三个基本条件进行深入论述,分析计算泥石流的重度、流速、流量、固体冲出量、冲压力等动力学参数,预测客基沟泥石流发生几率较大,暴发类型属中型暴雨型稀性沟谷泥石流。
The Keji Gully is an old debris flow gully.Due to the ＂5·12＂Wenchuan earthquake,there are a lot of loose solid materials in the gully,so it has a big potentially harmful threat.On the basis of analyzing the basic characteristics of the river basin,forming area,passing area and accumulation area of the debris flow,the formation conditions,like topography,water source and sediment source,were firstly in-depth discussed,then the kinetic parameters,including unit weight,flow rate,flow capacity,the amount of solid materials rushing out from upstream and pressforce were calculated.Finally,it predicted that the occurrence probability of the debris flow in Keji Gully was high,and its outbreak type was a medium-sized heavy rain dilute debris flow.
出处
《人民黄河》
CAS
北大核心
2013年第6期90-93,96,共5页
Yellow River
基金
中国地质调查项目(1212011014031)
关键词
泥石流
形成特征
动力学参数
客基沟
debris flow
formation characteristic
Kinetic parameters
Keji Gully
