琼州海峡跨海隧道关键技术研究  

Study on Key Technology of Qiongzhou Strait Tunnel

作　　者：陈昂 陶伟明[1] 朱勇[1] 范磊[1] CHEN Ang;TAO Weiming;ZHU Yong;FAN Lei(China Railway Eryuan Engineering Group Co.,Ltd.,Chengdu 610031,China)

机构地区：[1]中铁二院工程集团有限责任公司,成都610031

出　　处：《铁道标准设计》2022年第1期101-106,共6页Railway Standard Design

基　　金：中国工程院咨询研究项目(2019-ZD-7)。

摘　　要：琼州海峡跨海通道是国家铁路网和高速公路网的重要组成部分,随着两岸经济社会快速发展,迫切需要建设一条固定式、全天候运营的跨海通道。通过收集海峡自然地理条件、工程水文地质条件、历次研究成果等资料,对公路、铁路隧道方案进行研究,建议公路与铁路隧道应独立设置,采用盾构法施工。琼州海峡建设条件复杂,隧道方案需要解决超大直径盾构、超高水压、超长距离掘进三大关键技术。近年来我国水下盾构隧道技术快速发展,三大关键技术已部分解决,但超高水压下盾构密封、刀具维护、水下对接、联络通道施工等工程挑战超过现有技术储备,后续需加强研究。Qiongzhou Strait Channel is an important part of Chinese railway and expressway networks.With the rapid development of economy and society on both sides of the strait,it is urgent to build a fixed transportation channel and provide all-weather service.On the basis of the natural geographical condition,hydrogeological condition and previous study results,expressway and railway tunnel scheme is proposed.Generally,expressway tunnel and railway tunnel should be built independently with shield tunnelling method.The strait construction condition is complex and tunnel construction faces three key technical problems:extra-large diameter shield,ultra-high water pressure and super-long distance tunnelling.Based on the rapid development of underwater tunnel technology in recent years,some key technical problems have been partly solved,while the shield sealing,cutting tool maintenance,shield docking and cross passage construction under ultra-high water pressure still remain to be studied.

关 键 词：琼州海峡 跨海隧道 超大直径盾构 超高水压 超长距离掘进 关键技术 

分 类 号：U459.1[建筑科学—桥梁与隧道工程] U459.2[交通运输工程—道路与铁道工程]