To investigate the economic difference between the highwaymetro
integrated and separated construction of the Yangtze river tunnel in Wuhan,
China, four Yangtze river tunnels in Wuhan are chosen as typical cases. First,
the case implementation strategies are briefly discussed. Next, a comparative
analysis of the civil construction investment under three modes of metro
Yangtze river tunnel, highway Yangtze river tunnel, and highwaymetro integrated Yangtze river tunnel is performed in terms of
project components and various indxes of civil construction. Finally, the
causes for the difference in civil construction costs between the highwaymetro integrated and separated construction are shown. The analysis
results reveal the following: (1) The civil construction expenses of the metro
and highway shield sections shared by the Yangtze river highwaymetro integrated construction tunnel are cheaper than those of a
separated construction tunnel due to the high section usage rate. (2) The upper
highway and lower metro of the tunnel will cause great depth of opencut foundation
pit, and further cause higher civil construction costs of the metro and highway
sections shared by the opencut section of the highmetro
integrated construction scheme than those of separated construction scheme. (3)
The integrated and separated construction concepts have nearly identical total
civil construction costs.
XIONG Zhaohui
,
PENG Huiqiong
,
SUN Xuebing
. Comparative Economic Analysis of HighwayMetro
Integrated and Separated Construction of Yangtze River
Tunnel in Wuhan, China[J]. Tunnel Construction, 2022
, 42(5)
: 882
-891
.
DOI: 10.3973/j.issn.2096-4498.2022.05.015
