摘要
沉管隧道最终接头是隧道合龙前最后一个管节,也是设计与施工难度最大的一个管节。深中通道沉管隧道采用整体预制推出式最终接头的形式,且提出了千斤顶推出为主、水力推出为辅的新型推出方式,从施工图、方案编制到现场试验演练,分阶段开展风险管理研究,梳理各阶段的风险,同时辨识重大风险,并结合重大风险内容,采用了工艺工装设计、支撑性试验及演练等有效应对措施,形成了独特的最终接头风险管理体系,可为后续类似工程提供参考和借鉴。
The final joint of immersed tunnel is the last pipe segment before closure,and it is also the most difficult one to design and construct.The Shenzhen-Zhongshan Link immersed tunnel adopts the form of an integral prefabricated push-out final joint.A new push-out method with jack push-out as the main and hydraulic push-out as the auxiliary system was proposed.From the preparation of construction drawings and schemes to on-site testing,the risk management research was conducted in stages to sort out the risk situation in each stage,while identifying major risks.Combined with significant risk content,effective response measures such as process tooling design,supportive testing,and drills were taken in combination,forming a unique final joint risk management system,which can provide reference and inspiration for similar projects in the future.
作者
宁进进
杨锐
任宁
董辉
NING Jin-jin;YANG Rui;REN Ning;DONG Hui(Tongji University,Shanghai 200092,China;CCCC Tianjin Port Engineering Design&Consulting Co.,Ltd.,Tianjin 300461,China;Zhongtie Wuhan Major Bridge Engineering Consultancy&Supervision Co.,Ltd.,Wuhan,Hubei 430050,China;No.2 Engineering Co.,Ltd.of CCCC First Harbor Engineering Co.,Ltd.,Qingdao,Shandong 266071,China)
出处
《中国港湾建设》
2024年第12期85-91,共7页
China Harbour Engineering
关键词
深中通道
沉管隧道
最终接头
千斤顶推出
工艺工装图
风险管理
Shenzhen-Zhongshan Link
immersed tunnel
final joint
jack push-out system
process tooling diagram
risk management
