Settlement control during the construction of urban tunnels by NATM construction of Kitayama Tunnel on national highway 455

被引：0
|
作者：
Komatsu, Toshihiko
Kitamura, Hideyuki
Matsubara, Ken
Sakurai, Takaomi
机构：
来源：
UNDERGROUND SPACE - THE 4TH DIMENSION OF METROPOLISES, VOLS 1-3 | 2007年
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中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
The Kitayama Tunnel is constructed by the New Austrian Tunneling Method (NATM) through urban hills. The earth cover is thin throughout the tunnel alignment. It is necessary to control surface settlements according to the type of land use above the tunnel. The tunnel is stabilized by reinforcing the excavation face, tunnel crown and the foot of top heading, and giving priority to early closing of the ring. Ground stabilization ahead of the excavation face and the early reinforcement at the foot of top heading in particular were found to help control surface settlements.
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页码：1021 / 1026
页数：6
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