改进熵权-正态云模型在边坡稳定性评价中的应用  

Slope Stability Evaluation Based on Improved Entropy Weight-Cloud Model

作　　者：赵军[1] 宋扬[1] 

机构地区：[1]安阳工学院土木与建筑工程学院,河南安阳455000

出　　处：《水电能源科学》2016年第4期120-122,165,共4页Water Resources and Power

基　　金：河南省水利厅科技攻关基金项目(GG201446)

摘　　要：针对边坡稳定等级影响因素的不确定性、模糊性和时变性问题,引入云模型理论,综合考虑地形地貌、水文气象、地质环境等各方面因素,选取岩石质量指标等7个评价指标,提出了基于改进熵权-正态云模型的边坡稳定性评价方法。该方法通过云模型正向发生器计算各指标对应评价等级的确定度,基于改进熵权法确定各指标权重,以此综合评价边坡稳定性等级。以桂柳高速公路边坡为例建模计算,该方法评价结论与理想点法以及神经网络一致,证明该方法是可行的。In light of the uncertainties,fuzziness and time degeneration in slope systems,a new model for rock slope stability evaluation is proposed based on the cloud model and improved entropy weight.Seven evaluation indexes influencing the stability of rock slopes are selected in the safety evaluation process of slope stability.Safety evaluation grade and standard were given with the chosen assessment indicators.The model is tested by an example of Guiliu expressway slope.The obtained results are consistent with the results of idea point method and neural network.So,it demonstrates the feasibility of the proposed method.

关 键 词：边坡 云模型 改进熵权法 稳定性评价 

分 类 号：TV698.1[水利工程—水利水电工程]