摘要
本文分析的地质滑坡是贵州道真自治县暴雨引发的土质滑坡地质灾害的典型案例。通过野外实地勘察,结合工程地质原理,综合运用钻探、剖面测量等方法,查清滑体、滑带和滑床的岩土性质,分析滑坡的形成机理,认为二级陡坎临空面给滑坡创造剪出空间在降雨作用下导致坡体下滑。经稳定性分析,采取中部抗滑桩+坡体截排水+坡面修整+监测的综合防治方案。采用此方案治理边坡,其稳定性达到了安全要求。
A geological hazard analyzed in this paper is a typical case of soil landslide caused by a heavy rainfall in Daozhen Autonomous County,Guizhou.Through field investigation,with engineering geological conditions of the site being taken into consideration,the rock and soil properties of the sliding mass,slip zone and the bed rock were identified by using drilling,profile survey and other methods,and the formation mechanism of the landslide was analyzed.It is believed that the secondary scarp creates a space for the landslide to slide down the slope under the action of rainfall.After stability analysis,a comprehensive control scheme of central anti-slide pile+cut-off drain for sliding mass+slope repair+monitoring is put to use.The stability of the slope can meet the safety requirement.
作者
吴虹
WU Hong(No.106 Unit,Bureau of Geology and Mineral Exploration and Development of Guizhou Province,Zunyi,Guizhou 563000,China)
出处
《安徽地质》
2023年第3期239-243,共5页
Geology of Anhui
基金
道真自治县三桥镇新生村红光组滑坡地质灾害治理工程[编号:黔财建(2020)101号]资助。
关键词
滑坡
稳定性分析
成因分析
landslide
stability analysis
cause analysis
