China is proactively promoting construction
industrialization. In this paper, the construction technology for prefabricated
metro stations overseas is first analyzed and the research on and application
of the prefabricated construction technology to metro stations in major cities
of China in the past decade is summarized. A detailed elaboration is provided
on the "fully prefabricated structure" typically applied by Changchun
metro and further developed by Qingdao metro and Shenzhen metro. Through cases
of Wuzhong Road station in Shanghai, Renjiazhuang station of Jinan metro, and
Dingxiang Park station of Harbin metro, the "fully prefabricated
structure" is briefly introduced. The mixed structure applied in
Shangchong Park station of Guangzhou metro is also introduced. Then the
structural features of different types of prefabricated stations are analyzed,
and a sitespecific decisionmaking mechanism is
proposed. The technical routes and engineering schemes for constructing
prefabricated stations must be based on features of the underground works. The
advantages of the prefabricated construction technology must be fully exploited
to improve the standardization and industrialization level. Efforts should be
made to increase the structural prefabrication rate, develop highend construction equipment, and improve construction efficiency and
social benefits. It is also pointed out that the prefabricated station
technology has just started in China, and the whole technical system needs to
be improved and the technical standards need to be established. Besides, the
reasons for the high construction costs of prefabricated metro stations in the
current environment are analyzed, and emphasis is put on several paths to
effectively reducing project costs, including cutting taxes, optimizing
technical schemes and engineering designs, maximizing engineering applications,
reducing amortization costs, etc. In general, prefabricated metro stations in
China have experienced different phases: developed from nothing and from a
single construction mode to multiple modes. Prefabricated station technology is
currently advancing towards the concept and mode of industrialization. However,
the development of the prefabricated construction technology still has a long
way to go. It needs the concerns from and the coeffort
of the entire industry and the society.
YANG Xiuren
. Development Status of and Outlook for Construction
Technology for Prefabricated Metro Stations in China[J]. Tunnel Construction, 2021
, 41(11)
: 1849
-1870
.
DOI: 10.3973/j.issn.2096-4498.2021.11.003