ISSN 2096-4498
CN 44-1745/U
Tunnel Construction ›› 2010, Vol. 30 ›› Issue (3): 242-245.
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MAO Wei-Zhong1, Wang-Yun-Long2, Zhang-Nian2
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Abstract:
In order to analyze the influence of the shapes and covers of tunnels on the ground surface settlement, FLAC 3D is used to study the influence of the coverspan ratios and heightspan ratios of Metro tunnels on the ground surface settlement and the rule of the influence of different coverspan ratios and heightspan ratios of Metro tunnels on the ground surface settlement is obtained. It is proposed that the optimum coverspan ratios and heightspan ratios should be more than 1.0. This study results can be served as reference for the design of urban Metro tunnels with shallow covers.
Key words: Metro tunnel, cover span ratio, height span ratio, ground surface , settlement
MAO Wei-Zhong, Wang-Yun-Long, Zhang-Nian. Influence of Coverspan ratios and Heightspan ratios of Metro Tunnels on Ground Surface Settlement[J]. Tunnel Construction, 2010, 30(3): 242-245.
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