清江水布垭库区南潭村滑坡特征及其稳定性

南潭村滑坡位于湖北巴东县水布垭镇南潭村,是发育于原斜坡表层及部分浅层风化基岩中的沿岩土接触面或软弱结构面发生滑移的岩土混合质滑坡。本文结合南潭村滑坡的地质环境资料和现场勘察结果,介绍了滑坡的形态特征、结构特征和变形特征,从地质条件、降雨和人类工程活动等三个方面分析了滑坡的形成原因和影响因素,并采用剩余推力法对滑坡的稳定性进行了定量计算。通过对滑坡进行综合评价,提出了排水系统、减载反压、改变种植方式和变形监测等综合防治建议,为滑坡灾害的研究和治理提供借鉴。

The characteristics and stability of the landslide in Nantancun

Combining with the geology background information and the field survey of Nantancun landslide,the paper introduces different characteristics of the landslide,such as the morphological characteristics,physical structure and deformation characteristics,analyzes the causes of the landslide formation and influencing factors from geologic condition,rainfall precipitation and the human activities,and adopts residual-thrust method to calculate the stability of the landslide.By making an comprehensive assessment of the stability,the paper offers the controlling measures for the landslide,such as drainage system,unloading,changing cropping pattern and monitoring,and provides reference to study and control the landslide.