Study on physical and mineralogical factors that affect residual strength of landslide soil

在这项研究中，我们研究了从不同滑坡中收集的土壤的物理-矿物学性质、比表面积和剩余强度。通过绘制残余强度参数与总矿物含量的关系曲线，将滑坡土分为三个不同的类型。剩余强度参数随着比表面积的增大有减小的趋势。从这一分析中产生的统计关系允许将本研究中检查的所有土壤绘制在回归曲线附近。结果表明，这些关系式可以解释滑坡土剩余强度的控制因素和机理，可用于预测不同地质类型、不同矿物学性质和不同抗剪强度的各种滑坡土的剩余强度参数。

In this study, we examined the physico-mineralogical properties, specific surface area and residual strength of soils collected from different landslides. The plotting of residual strength parameter as a function of total mineral content formed a chair-shaped curve, based on which we classify landslide soils into three distinct groups. The residual strength parameter had a tendency to decrease as the specific surface area increased. The statistical relationship that emerges out of this analysis allows all soils examined in the present study to be plotted near the regression curve. The results conclusively show that these relationships can elucidate the controlling factors and the mechanism of residual strength, and be used for predicting the residual strength parameter of a wide range of landslide soils that differ in terms of geology, soil type, mineralogical properties and shear strength.