The Shenzhen-Zhongshan immersed tunnel
project (hereinafter Shenzhong Link) faces significant technical challenges,
including high-water pressure, hazardous back-silt issues, long-span structural design,
and high construction requirements. To ensure the project′s safety and durability during construction and operation periods, a
novel steel-shell concrete combination structure is
adopted. For the Shenzhong Link steel-shell concrete
immersed tunnel, the techniques of structure selection, cross-sectional design, longitudinal segment division, special structure,
and detailed steel-shell structure, as well as the
manufacturing, assembling, and transportation techniques for steel-shell, self-compacting concrete-casting technique, and advanced void detection method for steel-shell concrete are introduced. The key techniques for designing,
manufacturing, and constructing immersed tunnels are summarized. Additionally,
some optimization suggestions are made for the design of the steel-shell concrete shear connector, steel plate connection structure,
and concrete void detection method, based on the characteristics of Shenzhong
Link.
LIU Jian
,
DENG Bin
,
HUANG Qingfei
. Design and Manufacturing Techniques for Steel-Shell
Structure of Shenzhen-Zhongshan
Link′s Immersed Tunnel[J]. Tunnel Construction, 2021
, 41(8)
: 1367
.
DOI: 10.3973/j.issn.2096-4498.2021.08.013
