Research on Key Design Technology of Shenjiamen Harbour Subsea Tunnel Engineering in Zhoushan

International Conference on Manufacturing Technology, Materials and Chemical Engineering

机械制造;材料科学;化学工业

Jiang, Ying^1

Central and Southern China Municipal Design and Research Institude Co. Ltd., Hubei

430010, China^1

关键词: Construction quality;    Control parameters;    Design experience;    Design technologies;    Key technologies;    Protection structure;    Reference values;    Tunnel engineering;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/392/6/062089/pdf
DOI  :  10.1088/1757-899X/392/6/062089

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

The Shenjiamen harbour subsea tunnel in Zhoushan, Zhejiang is the first pedestrian submarine immersed tube tunnel in China. In view of the characteristics of the fine soft immersed tube tunnel with large slope, the section of the immersed tube structure was reasonably chosen, the length of the pipe was partitioned, various subsidiary structures were finely arranged, the technology and parameters of the grouting were strictly controlled, and the deformation of end corner was taken as the important control parameter for the design of fine soft pipe joint. The new design technology of final joints with the combination of thrust bearing platform and water sealing wall can ensure the construction quality of final joints, as well as reduce the risk and cost of project. In the field of tunnel engineering, a new bank protection structure that double row steel pipe pile was combined with mould bag sand cofferdam had been researched and designed. Through these key technologies, it has accumulated a wealth of design experience for submarine immersed tube tunnels, which possesses an important reference value for similar projects.