基于正交设计的红粘土边坡稳定性参数敏感性分析

Sensibility analysis of cut slope stability based on orthogonal experimental design in red clay regions

以昆明地区典型红粘土路堑边坡为例,在常规正交试验设计分析的基础上,结合极限平衡法对坡比、重度、粘聚力、内摩擦角、坡顶荷载及其距离坡顶的水平距离六种因素对边坡稳定性的影响进行敏感性分析,结果表明,红粘土的抗剪强度参数对边坡稳定性影响最大。

Taking the typical red clay slope in Kunming area as an example, based on conventional orthogonal design analysis, combining with the limit equilibrium method made sensibility analysis on the influence of slope rate, weight, cohesion, internal friction angle, slope top load and the horizontal distance to slope top six factors to stability results, the results showed that, the anti shear strength parameters of red clay had maxi- mum effect to slope stability.