基坑边坡稳定性的可拓评价

基于物元理论和关联函数，以坡体容重、粘聚力、内摩擦角、边坡高度和地下水赋存情况作为评价指标，将可拓理论引入到基坑边坡的稳定性分析当中，对某基坑边坡的稳定程度进行了评价；在此过程中，利用简单关联度构造判断矩阵并对指标权重进行求解，使权重的计算结果更加客观。通过与实际情况及模糊理论计算结果对比，证明将可拓理论运用于基坑边坡稳定性评价是合理可行的，且评价结果具有更加直观的特点。

Extension Theory Based Evaluation on Stability of Foundation Pit Slope

On the basis of matter-element theory and dependent function, and taking bulk density, cohesive force, internal friction angle, slope height and groundwater storage as evaluation indices, extension theory was introduced to analyze and evaluate stability of foundation pit slope. In the course of the evaluation, simple correlation structure judgment matrix was used to solve the weight of the indices, which can make the calculation result of the weight more objective. Compared with the actual situation and the result calculated by fuzzy theory, it is proved that the application of extension theory in stability evaluation for foundation pit slope is reasonable and feasible, with the evaluation result more intuitive.