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

在这项研究中，我们研究了物理矿物学性质，比表面积和剩余强度的土壤收集从不同的滑坡。剩余强度参数作为总矿物含量的函数的绘图形成椅子形曲线，在此基础上，我们将滑坡土分为三个不同的组。随着比表面积的增加，残余强度参数有降低的趋势。从这种分析中出现的统计关系允许在本研究中检查的所有土壤被绘制在回归曲线附近。研究结果表明，这些关系式可以阐明滑坡土剩余强度的控制因素和机理，并可用于预测不同地质、土类、矿物学性质和抗剪强度的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.