基于隶属函数与综合测度的边坡地震稳定性模型  

Slope Seismic Stability Model Based on Membership Function and Comprehensive Measure

作　　者：董志军 王剑 DONG Zhijun;WANG Jian(Guangzhou Xinzhu Engineering Supervision Co.,Ltd.;School of Resources and Safety Engineering,Central South University)

机构地区：[1]广州新珠工程监理有限公司,广东省广州市510000 [2]中南大学资源与安全工程学院

出　　处：《现代矿业》2022年第12期129-132,共4页Modern Mining

摘　　要：边坡地震稳定性问题严重制约着矿产资源的安全高效开采。将水工边坡的稳定性作为评价对象,通过直线型测度函数分别对岩土体特性、新构造运动特征、坡角、坡高、年均降雨量和场地地震烈度指标进行隶属度计算;最后结合指标权重熵权法与置信度识别准则,从考虑地震烈度和年均降雨量2种因素分别计算了6个特征指标的单指标测度评价矩阵及指标权重向量。结果表明,提出的基于隶属函数与综合测度的分析模型与现场实际情况相符,可以较好地对水工边坡地震稳定性提供安全技术支撑。The problem of slope seismic stability seriously restricts the safe and efficient mining of mineral resources. Taking the stability of hydraulic slope as the evaluation object,the membership degree of geotechnical characteristics,neotectonic movement characteristics,slope angle,slope height,average annual rainfall and site seismic intensity index is calculated by linear measurement function. Finally,combined with index weight entropy weight method and confidence recognition criterion,the single index measure evaluation matrix and index weight vector of six characteristic indexes are calculated from two factors of seismic intensity and annual average rainfall. The results show that the proposed analysis model based on membership function and comprehensive measure is consistent with the actual situation on site,which can provide safety technical support for seismic stability of hydraulic slopes.

关 键 词：边坡 地震 隶属函数 指标权重 稳定性 

分 类 号：TU433[建筑科学—岩土工程]