Now commonly used in karst area highway roadbed stability of interval fuzzy evaluation method has many shortcomings,is not applicable to the various karst area highway subgrade's judgment, to solve these problems,on the basis of fully considering the hierarchy and module family,build the karst area highway roadbed stability of interval secondary fuzzy judgment model,at the same time affecting the fuzzy fuzzy judgment matrix and weight vector of the nonlinear characteristics are analyzed,with the intro-duction of fuzzy synthesis operator matrix and interval number vector matrix analysis the judgment meth-ods,build the karst area highway roadbed stability analysis of interval fuzzy judgment method,using nu-merical simulation software for the construction of the three-dimensional numerical model of karst area highway roadbed,roadbed transverse,longitudinal and depth direction was analyzed the change of dis-placement of stress,the new algorithm can reduce the subjectivity of interval fuzzy judgment,can fully reflect the adverse factors affect their judgment.%目前常用的岩溶区公路路基稳定性的区间模糊评判方法还有很多不足之处，还不能适用到各个岩溶区公路路基的判断之中，针对这些问题，在充分考虑层次性以及模户型的基础上，构建了岩溶区公路路基稳定性的区间二级模糊判断模型，同时对影响模糊性判断的模糊矩阵和权向量的非线性特征进行了分析，通过引入模糊矩阵合成算子、区间数向量矩阵的分析判断方法，构建了岩溶区公路路基稳定性的区间模糊判断分析方法，运用数值模拟软件对构建了岩溶区公路路基的三维数值模型，简要分析了路基横向、纵向与深度方向的位移应力的变化情况，该新算法不断能降低区间模糊判断的主观性，还能充分的反映不利因素对其判断的影响。
展开▼
