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

在这项研究中，我们检查了从不同滑坡收集的土壤的物理矿物学性质，比表面积和残余强度。将残余强度参数与总矿物含量的关系绘制成椅子形曲线，据此将滑坡土划分为三类。残余强度参数随比表面积的增大而减小。从这一分析中得出的统计关系允许在本研究中检查的所有土壤在回归曲线附近绘制。研究结果表明，这些关系可以阐明残余强度的控制因素和机理，并可用于预测各种不同地质、土型、矿物学性质和抗剪强度的滑坡土的残余强度参数。

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.