Study on Prefabricated Lining Structure Design of a Metro
Tunnel&nbsp;Constructed
by Mining Method

ZHANG Jinwei; LUO Furong; TONG Lihong; YANG Binbin; XU Qian

doi:10.3973/j.issn.2096-4498.2021.05.016

Tunnel Construction >

2021 , Vol. 41 >Issue 5: 822 - 830

DOI: https://doi.org/10.3973/j.issn.2096-4498.2021.05.016

Study on Prefabricated Lining Structure Design of a Metro Tunnel Constructed by Mining Method

ZHANG Jinwei ,
LUO Furong ,
TONG Lihong ,
YANG Binbin ,
XU Qian

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(1. China Railway Liuyuan Group Co., Ltd., Tianjin 300133, China; 2. Beijing Metro Construction Administration Co., Ltd., Beijing 100000, China; 3. Beijing Metro Design and Research Institute Co., Ltd., Beijing 100000, China)

Online published: 2021-05-29

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Abstract

Prefabricated structures have the advantages of factory, mold, mechanization, and standardization; it can be brought into a metro tunnel constructed by the mining method. Detailed and indepth investigation of similar projects in China and abroad are conducted. As part of the investigation, a preliminary research on the prefabricated secondary lining structure of a metro tunnel constructed by the mining method is carried out using engineering analogy, theoretical analysis, numerical simulation analysis, experimental research, and field application feedback based on the mature design and construction experience of shield and TBM. The results show that it is feasible to use prefabricated components for the secondary lining structure of a tunnel constructed using the mining method. The prefabricated secondary lining adopts a horseshoeshaped crosssection, reinforced concrete flat lining with a thickness of 300 mm or 350 mm and 6 blocks, and a staggered joint with ring width of 1 200 mm. The lining sheets are connected by curved or straight bolts according to the design principle of erectors.

Key words： metro; mining method; tunnel; prefabricated lining; precast technology; lining sheet

Cite this article

ZHANG Jinwei , LUO Furong , TONG Lihong , YANG Binbin , XU Qian .

Study on Prefabricated Lining Structure Design of a Metro Tunnel Constructed by Mining Method

[J]. Tunnel Construction, 2021 , 41(5) : 822 -830 . DOI: 10.3973/j.issn.2096-4498.2021.05.016

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