梅溪河流域明水中学滑坡形成机理与稳定性评价  

Formation mechanism and stability evaluation of Mingshui middle school landslide in the Meixi River basin

作　　者：连志鹏[1] 伏永朋[1] 

机构地区：[1]中国地质调查局武汉地质调查中心,武汉430205

出　　处：《中国地质调查》2017年第1期69-73,共5页Geological Survey of China

基　　金：中国地质调查局"长江上游宜昌-江津段环境工程地质调查(编号:1212010640601)"项目资助

摘　　要：明水中学滑坡位于梅溪河左岸,为典型的松散堆积体滑坡。通过分析坡体结构、形态、组成及变形特征等滑坡工程地质条件,认为该滑坡形成大致经历了"崩塌堆积—滑移—趋稳定—复活"4个阶段。运用GEOSLOPE软件对滑坡变形状态进行定量分析,确定滑坡稳定性。计算结果表明,明水中学滑坡目前整体处于较稳定状态,发生整体滑动的可能性较小,但在天然工况下,滑坡体前缘已接近极限平衡状态,产生滑移的可能性较大。Mingshui middle school landslide,located on the left bank of the Meixi River,is a typical loose deposits landslide. By analyzing the engineering geological conditions of the landslide,including slope structure,morphological characteristics,and deformation features,the formation of the landslide is considered to experience 4steps： collapsing and accumulating→sliding→going slowly to stable state→moving again. The landslide deformation is qualitatively analyzed and the landslide stability is determined by the GEO- SLOPE software. The result shows that the slide body of this landslide is currently stable,but the front edge of landslide is close to the limit state in natural conditions,which is very likely to slide or collapse.

关 键 词：梅溪河 滑坡 形成机理 稳定性评价 

分 类 号：P642.22[天文地球—工程地质学]