The lining forms of tunnel in No. 4 Bid Section of
Songhua River water diversion project are divided into reinforced concrete
lining and pressure steel pipe lining. The length of steel pipe lining
construction section is about 5.55 km
away from the tunnel exit, the diameter of steel pipe is 5.61 m, and the smallest
space between the steel pipe and the inner diameter of tunnel is only 30 cm. In
order to solve the technical problems of large diameter steel pipe such as long
transportation distance, low positioning accuracy, weak support and
insufficient crown filling compactness, the influencing factors affecting rapid
construction of pressure steel pipe lining and countermeasures are analyzed and
summarized, comparison is made among different construction schemes, a
hydraulic railmounted steel pipe transport trolley is
developed, and the selfcompaction concrete and doublecross supporting reinforcement technology are adopted. The practical
application results show that by adopting the technologies mentioned above, the
construction efficiency has been effectively improved, and the main line
construction period has been reduced.
WANG Liang
. Construction Technology of Largediameter
Pressure Steel Pipe Lining in Songhua River Water
Diversion Project[J]. Tunnel Construction, 2020
, 40(S1)
: 382
-388
.
DOI: 10.3973/j.issn.2096-4498.2020.S1.050
