铁道科学与工程学报2018，Vol.15Issue(1)：71-78,8.
有限云模型和距离判别法在边坡稳定性评价中的应用
Application of finite cloud model and distance discrimination in slope stability evaluation
戴兴国 1张彪 1闫泽正1
作者信息
- 1. 中南大学 资源与安全工程学院,湖南 长沙 410083
- 折叠
摘要
Abstract
Evaluation of slope stability is a comprehensive system problem with uncertainties, as characteristics index distributions and their classification boundaries are of fuzzy, this paper proposed a method to classify the stability of slope by using the cloud model with finite interval as the evaluation subject and the distance discriminant weighting. Calculation model and concept of finite cloud model and specific principles and processes of weighting were first discussed. And the evaluation index system of related literature was cited, the basic probability assignment of each index was calculated by the membership function and their weights were obtained based on indexes distance in the end. The cloud of each index on different stability levels was generated based on the cloud digital characters of evaluation indexes, and considering the measured evaluation index values and the corresponding weights, the comprehensive degrees of certainty were obtained. The slope stability level was identified by the maximum subordination principle. The results from case study and comparing with other theory methods show that the model proposed is feasible and effective, it can improve the shortcomings of inability to discuss quantitatively certainty and uncertainty relationships among indicators of interval distribution form from a unit way, so as to improve the universality for the cloud model application.关键词
边坡稳定性/距离判别/隶属函数/基本概率分配/有限云模型/综合确定度Key words
slope stability/distance discrimination/membership function/basic probability assignment/finite cloud model/comprehensive certainty degree分类
信息技术与安全科学引用本文复制引用
戴兴国,张彪,闫泽正..有限云模型和距离判别法在边坡稳定性评价中的应用[J].铁道科学与工程学报,2018,15(1):71-78,8.
