It is difficult to conduct rectangular shield
tunneling mining construction of longdistance underground utility
tunnel under complex engineering environment. It is an urgent need to speed up
the key technology research and development of special equipment for
rectangular shield tunneling of utility tunnel and promote the practice and
application of rectangular shield tunneling technology in the field of utility
tunnel engineering, thus maximizing the utilization rate of the internal space
of the shield tunnel. Therefore, a scheme design research is conducted for the
rectangular shield technology of the utility tunnel, and the shield segment,
joint structure, auxiliary structure, internal partition wall, accessories, and
nodes are designed. In addition, the shield construction scheme and key
technical problems to be solved are explored, and a feasible technical scheme
is proposed. Finally, a case study is conducted on the south extension project
of the utility tunnel of Zhengzhou Binhe International New Town, the
application scenario design and shield equipment mechanics design are
conducted, and an effective solution that can be applied to engineering
practice is provided. Through technical and economic comparisons, favorable
conditions applicable to the rectangular shield of the utility tunnel are
obtained, providing a scheme for saving the construction cost and shortening
the period.
ZHANG Xing, SU Minghao, GAN Yu, FENG Haixiang
. Scheme Design of Rectangular Shield for Underground
Utility Tunnel[J]. Tunnel Construction, 2023
, 43(S1)
: 365
-372
.
DOI: 10.3973/j.issn.2096-4498.2023.S1.042
