云模型稳定性评价方法在水利边坡中的应用

The Application of Cloud Model Stability Evaluation Method in Water Conservancy Slope

针对水利边坡稳定性评价方法的模糊性和随机性特点,提出基于云模型的水利边坡稳定性评价方法。选取影响水利边坡稳定性的10个主要因素作为评价指标,由云发生器生成的10个评价指标隶属于各稳定性等级的综合云模型,同时基于信心指数的专家打分法得出各评价指标的权重,最后将最大隶属度所在的级别确定为边坡的稳定性等级。采用该方法对李家峡坝前1#滑坡进行了稳定性评价,并与现行国家规范推荐的CSMR法及这些边坡的实际状态进行了比对,表明该方法具有一定的可行性。

In view of the fuzziness and randomness of the evaluation method of water conservancy slope stability,the cloud model theory was introduced into the water conservancy slope stability evaluation method.Ten main factors affecting the stability of water conservancy slope were selected as evaluation indexes.The 10 evaluation indexes generated by cloud generator belonged to the comprehensive cloud model of each stability grade.At the same time,the expert scoring method based on confidence index was used to get the weight of each evaluation index,and finally,the grade of maximum membership degree was determined as the stability grade of slope.The method was used to evaluate the stability of the No.1 landslide in front of Lijiaxia Dam and was compared with the CSMR method recommended by the current national code as well the actual state of the slope.The results showed that the method would be feasible.