道县自来水公司滑坡特征及稳定性分析研究  

Analysis and Study on Landslide Characteristics and Stability of Daoxian Water Supply Company

作　　者：胡天杰 陈万利 孟繁星 HU Tianjie;CHEN Wanli;MENG Fanxing(Hunan Institute of Nuclear Geology,Changsha 410000,China)

机构地区：[1]湖南省核地质调查所,湖南长沙410000

出　　处：《四川有色金属》2024年第4期42-45,共4页Sichuan Nonferrous Metals

摘　　要：本文以道县自来水公司滑坡为研究对象,根据变形历史及滑坡发育现状,查明地下水排泄不畅,后缘修建食堂加载,在持续降雨情况下,形成拉张裂缝和建筑变形,挤压前缘挡墙,导致开裂、渗水和地面隆起现象,形成浅层推移式土质滑坡。采用瑞典条分法对滑坡的自然、自然+荷载、自然+暴雨及自然+荷载+暴雨四种工况下的2个剖面进行稳定性评价,结果表明:自然条件下,滑坡处于稳定状态;暴雨条件下滑坡处于不稳定~基本稳定状态。In this paper,taking the landslide of Daoxian Water Supply Company as the research object,according to the deformation history and landslide development status,it is found that the groundwater discharge is not smooth,the con-struction canteen at the back edge is loaded,under the condition of continuous rainfall,the formation of tensile cracks and building deformation,the extrusion of the front retaining wall,resulting in cracking,water seepage and ground uplift phenomenon,the formation of shallow soil landslide.The Swedish strip method is used to evaluate the stability of two sections of landslide under four conditions:nature,nature+load,nature+rainstorm and nature+load+rainstorm.The results show that the landslide is in a stable state under natural conditions.The landslide is in an unstable~basi-cally stable state under the condition of heavy rain.

关 键 词：自来水公司滑坡 裂缝 稳定性 

分 类 号：P642.22[天文地球—工程地质学]