强震活动断裂带铁路隧道建设面临的挑战与对策  

Challenges and Countermeasures of Railway Tunnel Construction in Macroseismic Active Fault Zone

作　　者：何川[1] 耿萍[1] HE Chuan;GENG Ping(Key Laboratory of Transportation Tunnel Engineering(Southwest Jiaotong University),Ministry of Education,Chengdu Sichuan 610031,China)

机构地区：[1]西南交通大学交通隧道工程教育部重点实验室,四川成都610031

出　　处：《中国铁路》2020年第12期61-68,共8页China Railway

基　　金：四川省科技计划项目(2019YFG0001);国家自然科学基金资助项目(51878566);四川省科技重点研发项目(2020YFS0294)。

摘　　要：介绍强震活动断裂带对隧道工程建设的挑战与风险;总结活动断裂带蠕滑特性及场地地震效应、穿越活动断裂带隧道静动力响应分析方法及抗震抗断技术对策;针对铁路隧道穿越活动断裂带面临的重大技术难题,提出相关思考与建议,重点研究内容包括:活动断裂带形变几何关系预判、深部黏滑错动至隧址处映射关系、穿越活动断裂带隧道受荷释能模式、跨断裂带结构自适应体系、工程场地效应耦合断裂带活动效应、活动断裂带地下水运移机制及突涌水预测防控、活动断裂带地热赋存与耦合传热机制及热害防控。This paper introduces the challenges and risks of tunnel engineering construction in macroseismic active fault zones,summarizes the creep-slip characteristics of active fault zones,the site seismic effect and the static and dynamic response analysis method of tunnels crossing the active fault zone,as well as the technical countermeasures for seismic and fracture resistance.Relevant thoughts and suggestions for major technical problems faced by railway tunnels crossing active fault zones are put forward.The key research items include:the prediction of geometrical relationship of deformation in active fault zones,the mapping relationship of deep stick-slip dislocation to tunnel site,the load-bearing and energy-releasing mode of tunnels crossing active fault zones,the adaptive system of cross-fault zone structures,the activity effect of engineering site effect coupling fault zone,the underground water migration mechanism of active fault zones,the prediction and prevention of water inrush,the geothermal occurrence and coupling heat transfer mechanism of active fault zones,and prevention and control of thermal damage.

关 键 词：铁路工程 隧道建设 地震 活动断裂带 抗震抗断技术 

分 类 号：U452[建筑科学—桥梁与隧道工程] U455[交通运输工程—道路与铁道工程]