边坡二维渐进破坏的随机模糊可靠性

Fuzzy Random Reliability of Slope’s Two Dimensional Progressive Failure

基于岩体的空间变异性，认为边坡破坏是由局部开始逐渐扩展的一渐进过程，它具有随机性和模糊性的双重特征．应用极限平衡分析方法，建立了二维渐进破坏边坡的随机模糊可靠度模型．该模型将模糊数学、可靠性理论以及边坡的破坏性结合起来。

According to the slope’s spatial variability theory, slope failure is regarded as a two dimensional progressive process in which the failure spreads from its local area to the other ones gradually, being of random and fuzzy features. A model of the fuzzy random reliability of slope’s two dimensional progressive failure has been put forward on the basis of the limit analysis. From the model, which connects fuzzy mathematics and reliability theory with the character of slope failure, the calculation formula of the slope’s fuzzy reliability is derived.