模糊评判在岩质边坡稳定性分析中的应用

构造了岩质边坡稳定性分析的模糊综合评判模型, 进而结合某大型水电站边坡稳定性的实际问题, 利用岭函数和梯形函数构造了与岩质边坡稳定性分析相关因量的隶属函数, 综合运用专家评分法和王家鼎公式法确定了各作用因素的权重, 在用二级综合评判方法分析岩质边坡稳定性的时候, 经试算后采用了普通乘算子代替Zadeh算子。结果表明该评价方法能更全面地考虑实际岩质边坡问题的非确定性属性, 评价分析结果与实际相吻合。

Application of Fuzzy Judging on Rock slop Stability Analysis

A fuzzy comprehensive judging model for rock-slope stability analysis is constructed. Taking the actual problem of slope stability in a certain large-scale power station as an example, ridge function and trapezoid function are used to construct a subordinative function of related factors to the rock-slope stability. Wang Jia-ding formula method and the class synthesis assessment method are comprehensively applied to decide the weight of each factor. After a trial calculation, Zadeh operator was substituted by the general multiply operator in the analysis of rock-slope stability with the second comprehensive judging method. Results show that such judging method take the uncertainties of real rock-slope problem into account more comprehensively and the analysis results can coincide with the truth.