Develop correlations between soil parameters in unsaturated condition – Jandola landslide as case study

IF 0.4 Q4 ENGINEERING, CIVIL
Muhammad Israr Khan, Shuhong Wang
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引用次数: 1

Abstract

The focus of this research is on comparing slope factor of safety determined from computer modeling for basic slopes using frequently used limit equilibrium methods to the less typically used finite element methods. Several various slope geometry and material properties combinations are used in the comparison study. The main objective of this research is to develop useful correlations for slope stability analysis projects. Useful correlations are developed in seismic and non-seismic conditions between factor of safety with shear strength and shear stresses in soil slopes. It is found that the seismic and non-seismic factor of safety values are correlated at 99.6 % applicability percent. Shear strength and shear stress are correlated with non-seismic factor of safety at 99.5 % applicability. Similarly, shear strength and shear stress are correlated with seismic factor of safety at 100 % applicability value. Non-seismic slope factor of safety in case of limit equilibrium analysis is correlated with non-seismic factor of safety in case of finite element analysis at 83.8 % applicability. Jandola landslide is considered as case study to cross check the correctness of the developed correlations. These correlations can be used in slope stability analysis projects.
建立非饱和条件下土体参数间的相关性——以詹多拉滑坡为例
本研究的重点是比较常用的极限平衡方法和较少使用的有限元方法在基本边坡的计算机建模中确定的边坡安全系数。在对比研究中使用了几种不同的边坡几何形状和材料特性组合。本研究的主要目的是为边坡稳定性分析项目建立有用的相关性。在地震和非地震条件下,建立了土体边坡抗剪强度安全系数与剪应力之间的有用关联。结果表明,在99.6%的适用性范围内,地震安全系数与非地震安全系数具有相关性。在99.5%的适用性下,抗剪强度和剪应力与非地震安全系数相关。同样,在100%适用值下,抗剪强度和剪应力与地震安全系数相关。极限平衡分析时的边坡无震安全系数与有限元分析时的边坡无震安全系数具有83.8%的相关性。以詹多拉滑坡为例,对所建立的相关关系的正确性进行了检验。这些关联关系可用于边坡稳定性分析项目。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
CiteScore
1.70
自引率
0.00%
发文量
28
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