基于安全系数对某软土滑坡成因分析

以舟山某海滩滑坡为背景,通过现场调查、地质勘察及相关的理论分析,发现填荷载作用下产生两类滑坡形式包括牵引式和剪切型两种;滑坡前后土层力学性能指标发生改变,特别是滑动区域土层粘聚力明显下降;极限平衡法提示出未进行堆载预压处理时必将发生失稳,失稳后必须采用抗滑桩才能保证堆填荷载作用边坡的安全。

The Analysis of the Cause of Landslide in Soft Soft Based on Safety Factor

Take Zhoushan beach slide as the background,through on-site investigation,geological exploration and related theoretical analysis,we found two types of fill loads generated slide form,including traction-type and sheared-type;The mechanical index of soil mechanical properties changes before and after landslides,especially in the sliding area soil cohesion decreases obviously.Limit equilibrium method suggests instability will happen when preloading treatment is done,and unstable piles must be used after the l...