基于模糊综合评价的隧道洞口边坡稳定性分析方法  

Stability Analysis Method of Tunnel Portal Slope Based on Fuzzy Comprehensive Evaluation

作　　者：吴新栋 王文博[2] 杨玉莹 WU Xindong;WANG Wenbo;YANG Yuying(China Railway Construction Kunlun Investment Group Co.,Ltd.,Chengdu 610040,Sichuan,China;Xi'an University of Architecture and Technology,Xi'an 710055,Shaanxi,China)

机构地区：[1]中国铁建昆仑投资集团有限公司,四川成都610040 [2]西安建筑科技大学,陕西西安710055

出　　处：《工程技术研究》2025年第2期46-49,共4页Engineering and Technological Research

摘　　要：长距离隧道洞口路堑岩石边坡数量众多且地质条件复杂,传统的稳定性评价方法存在较大局限性。针对工程特点,需综合考虑边坡评价的复杂性、系统性及快速性,合理选择评价指标,将评价指标进行分类并构建隶属度函数,同时结合土体与临时支护的折减参数,建立隧道洞口稳定性的分层评价结构。鉴于此,文章利用层次分析法对各指标权重进行计算,对岩质边坡稳定性进行模糊综合评价分析,应用结果表明,该方法能快速、准确地反映工程实际情况,为施工提供有效指导。There are a large number of cutting rock slopes at the portal of long-distance tunnels and the geological conditions are complex,so the traditional stability evaluation methods have great limitations.In view of the characteristics of the engineering,it is necessary to comprehensively consider the complexity,systematicity and rapidity of the slope evaluation,reasonably select the evaluation indexes,classify the evaluation indexes and construct the membership function,and establish a hierarchical evaluation structure of tunnel portal stability combined with the reduction parameters of soil and temporary support at the same time.In view of this,this paper uses the Analytic Hierarchy Process to calculate the weight of each index,and carries out fuzzy comprehensive evaluation and analysis on the stability of rock slope.The application results show that this method can quickly and accurately reflect the actual situation of the engineering and provide effective guidance for construction.

关 键 词：模糊综合评价 层次分析法 洞口边坡稳定性 非线性隶属度函数 

分 类 号：U452.11[建筑科学—桥梁与隧道工程]