胶州湾第二海底隧道工程挑战与技术创新  

Challenges and Technological Innovations in the Jiaozhou Bay Second Submarine Tunnel Project

作　　者：曲立清 QU Liqing(Qingdao Guoxin Development(Group)Co.,Ltd.,Qingdao 266071)

机构地区：[1]青岛国信发展(集团)有限责任公司,青岛266071

出　　处：《现代隧道技术》2024年第2期223-231,共9页Modern Tunnelling Technology

摘　　要：青岛胶州湾第二海底隧道是世界上最长海底道路隧道工程,采用钻爆法+盾构法组合工法施工,线路总长17.5 km,最深点距海平面约115 m,海底断裂带、风化深槽、软弱破碎带等灾害源广布,已探明构造带22条,是目前世界上建设规模最大、长度最长的海底隧道超级工程。项目建设面临“三大四极”的工程重难点,为此,项目开展了多项引领性设计施工与创新技术探索。文章回顾了海底隧道建设的历程与经验,阐述了胶州湾第二海底隧道建设面临的问题和思考,旨在为后续类似的工程建设提供参考和借鉴。The Qingdao Jiaozhou Bay Second Subsea Tunnel is the world's longest subsea road tunnel project,con⁃structed using a combination of drilling+blasting and shield tunnelling methods.The total length of the tunnel is 17.5 km,with the deepest point about 115 m below sea level.The area is fraught with geological challenges,including submarine fault zones,deeply weathered troughs,and weak fractured zones,with 22 identified tectonic zones,making it the largest and longest undersea tunnel mega project in the world to date.The project faced significant engineering challenges,described as"three majors and four extremes,"and undertook numerous leading-edge technological in⁃novations in design and construction.This paper reviews the construction history and experiences of subsea tunnels and addresses the challenges and considerations in the construction of the Jiaozhou Bay Second Subsea Tunnel,aiming to provide references and insights for similar future engineering projects.

关 键 词：胶州湾 超长海底隧道 组合工法施工 大型机械化配套施工 

分 类 号：U459.5[建筑科学—桥梁与隧道工程]