基于层次分析法的某岩溶引水隧洞地质选线研究  

Study on Geological Route Selection of a Karst Water Diversion Tunnel by AHP

作　　者：孙翊博 李承中[1] 江磊 王刚 SUN Yibo;LI Chengzhong;JIANG Lei;WANG Gang(China Water Resources Beifang Investigation,Design and Research Co.,Ltd.,Tianjin 300222,China;China Gezhouba Group Three Gorges Construction Engineering Co.,Ltd.,Yichang 443000,China)

机构地区：[1]中水北方勘测设计研究有限责任公司,天津300222 [2]中国葛洲坝集团三峡建设工程有限公司,湖北宜昌443000

出　　处：《河南科技》2025年第1期56-59,共4页Henan Science and Technology

基　　金：水利部重大科技项目(SKS-2022147)。

摘　　要：【目的】某引水隧洞需穿越岩溶发育地段,因此有必要评估隧洞在穿越岩溶段时可能遇到的主要地质挑战,研究岩溶引水隧洞的地质选线问题。【方法】对某电站引水隧洞穿越岩溶段的地形地貌、地层岩性、水文地质条件及岩溶等方面进行研究,分析隧洞工程中可能遇到的主要地质问题,包括围岩塌方、涌突水与突泥及次生环境地质问题等,并采用层次分析法进行优劣对比,将定性的地质分析转化为定量的数学计算,为线路方案的比选提供准确依据。【结果】从各因子的权重来看,隧洞开挖引发的次生环境问题、硐室围岩条件、涌突水和突泥及岩溶发育程度是比选的主要因素。【结论】本研究实现了岩溶区引水隧洞工程的定性和定量地质分析,提出了优选线路方案,可为今后类似工程的地质勘察和设计提供参考。[Purposes]The water diversion tunnel must pass through a karst developed area,so it is important to assess the main geological challenges that may arise during this passage and study on geological route selection of karst diversion tunnel.[Methods]The study on the topography and geomorphology,stratigraphic lithology,hydrogeological conditions and karst of a power station diversion tunnel passing through the karst section analyzed the main geological problems that may be encountered in the tunnel project,including surrounding rock collapse,water gusher and mud outburst and secondary environmental geological problems,and compared the advantages and disadvantages with analytic hierarchy process.The qualitative geological analysis is transformed into quantitative mathematical calculation,which provides an accurate basis for the comparison and selection of route schemes.[Findings]From the weight of each factor,the secondary environmental problems caused by tunnel excavation,surrounding rock conditions,water gushing and mud outburst and karst development degree are the main factors.[Conclusions]This study realizes the qualitative and quantitative geological analysis of the diversion tunnel project in karst area,and puts forward the optimal route scheme,which has an important reference for the geological investigation and design of similar projects in the future.

关 键 词：引水隧洞 岩溶 地质选线 层次分析法 

分 类 号：TV743[水利工程—水利水电工程]