深中通道钢壳混凝土沉管隧道建设关键技术  

Key Technologies for the Construction of the Shenzhen-Zhongshan Link Steel Shell Concrete Immersed Tunnel

作　　者：邓小华[1] 陈伟乐 宋神友 吴玉刚 刘健 金文良 陈越 DENG Xiaohua;CHEN Weile;SONG Shenyou;WU Yugang;LIU Jian;JIN Wenliang;CHEN Yue(Guangdong Communications Group Co.,Ltd.,Guangzhou 510623;Shen-Zhong Link Administration Center,Zhongshan 528400;Guangdong Highway Construction Co.,Ltd.,Guangzhou 510623)

机构地区：[1]广东省交通集团有限公司,广州510623 [2]深中通道管理中心,中山528400 [3]广东省公路建设有限公司,广州510623

出　　处：《现代隧道技术》2024年第2期203-213,共11页Modern Tunnelling Technology

摘　　要：深中通道是集“桥、岛、隧、水下互通”于一体的超级跨海集群工程,国内首次采用钢壳混凝土组合结构形式的沉管隧道。工程面临着设计规范缺乏、沉管钢壳制造精度高、沉管自密实混凝土浇筑及质量检测难、管节浮运距离长、沉管隧道建设环境复杂等多种技术挑战。文章在对深中通道工程面临的关键科学问题与关键技术问题进行详细梳理的基础上,围绕钢壳混凝土沉管隧道新型结构与设计方法、钢结构长寿命耐久性防护、钢壳建造、自密实混凝土配制、智能浇筑及检测技术、沉管隧道数智建造、海中整体推出式最终接头关键结构与施工方法、沉管隧道建设环境监测体系及精准预报系统、结构火灾防控等技术难点进行深入分析,总结主要技术成果,以期为后续类似越江跨海通道岛隧工程的设计与施工提供参考。The Shenzhen-Zhongshan Link is a super-scale sea-crossing cluster project integrating"bridge,island,tunnel,and underwater interchange,"and it is the first immersed tunnel to adopt the steel shell and concrete com⁃bined structure in China.The project confronts numerous technical challenges such as the lack of design standards,high precision required for steel shell manufacturing,difficulties in casting and quality inspection of self-compacting concrete in elements,long distances for tube floating transport,and complex construction environment for immersed tunnels.Based on a thorough analysis of key scientific and technical issues faced by the Shenzhen-Zhongshan Link project,this paper delves into various challenging aspects including new structure type and design method for steel shell concrete immersed tube tunnel,long-term durability protection for steel structure,steel shell fabrication,selfcompacting concrete preparation,intelligent casting and inspection technology,digital construction technology for immersed tunnel,key structure and construction method for the final closure joint monolithically launched in the sea,monitoring and precision forecasting system for tunnel construction environment,and structural fire prevention and control.The paper aims to summarize the main technical achievements and provide references for the design and construction of similar river and sea-crossing tunnel projects in the future.

关 键 词：深中通道 钢壳混凝土沉管隧道 自密实混凝土 智能浇筑 最终接头 数智建造 

分 类 号：U459.5[建筑科学—桥梁与隧道工程]