某露天矿滑坡探测及抗剪强度参数反分析

Landslide Detection and Back Analysis of Shear Strength Parameters in an Open-pit Mine

针对湖北某露天矿的滑坡问题,采用五极纵轴激电测深技术对该滑坡进行探测,探明了3条剖面的滑动面大致位置,各剖面滑动面深度、形状都略有不同;采用简易瑞典条分法对滑坡抗剪强度参数进行反分析,求得C=13.5kPa,φ=26.5°,为该滑坡的稳定性分析和治理提供了必要的依据。

According to the landslide of an open-pit mine in Hubei, five-pole vertical axis resistivity sounding technology was applied for detection. The rough locations of three cross- sectional sliding surfaces were determined. And it found that the depths and shapes of three sliding surfaces were slightly different. Then, the simple Swedish slice method was used for back analysis on the shear strength parameters, which obtained that C was 13.5 kPa, and q9 was 26.5°. The study provided necessary basis for stability analysis and treatment of landslide.