基于可拓学理论的坝坡稳定性评价方法

以物元模型的可拓学理论为基础,提出了针对大坝坝坡稳定性评价的可拓学评价方法,通过构造物元关联函数及物元关联度,确定物元经典域、节域,建立大坝坝坡稳定的可拓学评价模型,采用乘积标度法分析确定权重来定量评价和预测大坝坝坡稳定性。通过应用该评价模型对工程实例进行评价,并与二维有限元方法计算结果进行比较和验证,结果表明可拓学评价方法的评价结果与数值计算结果吻合良好。因此可拓学评价方法应用于土石坝坝坡稳定性评价是可行的,与传统评价方法相比,具有计算简单、便捷实用等特点,可在同类工程的坝坡稳定性评价和预测中应用。

Study on Slope Stability Assessment Method of Dam Based on Extenics Theory

Based on the extenics theory of matter element model, assessment method of dam slope stability is proposed in this paper. The classical domain and joint domain of matter element are determined by constructing the element dependent function and dependent degree. And the assessed model of dam slope stability based extenics theory is established. Then the multiplication scale method is adopted to calculate weight and assess and predict the dam slope stability quantitatively. The proposed evaluation model is applied to practical project. Compared with 2D finite element method, the results show that two methods are identical. Therefore, the extenics method is feasible for assessing dam slope stability. It is simple and convenient practical by comparing with the traditional method, which can apply in similar assessment and prediction of dam slope stability.