贵港市覃塘镇银山口泥石流成因机制分析

Analysis of Debris Flow Formation Mechanism of Yinshankou of Qintang Town in Guigang

以地质调查与地质钻探相结合的工作手段,采用定性分析方法,我们分析银山口泥石流的发育特征并探讨其成因机制。结果表明:银山口泥石流沟除受地形地貌、地层岩性等因素控制外,丰富的物源以及暴雨是该泥石流发生的主要因素,银山口泥石流沟在降雨尤其是暴雨的影响下,总体处于不稳定状态。研究结果可以为地方政府防灾减灾及制定对策服务。

According to geological survey, geological drilling and the method of qualitative analysis ,we studied the development characteristics and the formation mechanism of Yinshankou debris flow. The results show that the Yinshankou debris flow gully was controlled mainly by rich source and heavy rain in addition to the factors of topographic and geomorphic conditions, stratum lithology etc. Yinshankou debris flow gully is generally unstable in the rain, especially under the influence of rainstorm. The research results can serve for the local government disaster prevention and mitigation.