EXPERIMENTAL STUDY OF ULTIMATE BEARING CAPACITY OF SHIELD TUNNEL REINFORCED BY FULL-RING STEEL PLATE
LIU Xian1，TANG Min1，LU Liang2，WANG Xiuzhi3，ZHU Yanfei4
(1. Department of Geotechnical Engineering，Tongji University，Shanghai 200092，China；2. Research Institute
of Structural Engineering and Disaster Reduction，Tongji University，Shanghai 200092，China；
3. Technical Center of Shanghai Shentong Metro Group Co.，Ltd.，Shanghai 201103，China；
4. Shanghai Tunnel Engineering Co.，Ltd.，Shanghai 200082，China)
Abstract：A full-scale test is carried out to study the ultimate bearing capacity of the shield tunnel reinforced by full-ring steel plate. The failure phenomena are described；and the load-displacement curve is obtained. The key performance point of the reinforced structure is also analyzed. The result shows that：the full-ring steel plate reinforcement can improve the structural strength and stiffness of the tunnel efficiently；the bond failure between the steel plate and the segments leads to the failure of the reinforced structure.
王如路. 上海轨道交通隧道结构安全性分析[J]. 地下工程与隧道，2011，(4)：37-44.(WANG Rulu. Structural safety analysis of Shanghai rail transit tunnel[J]. Underground Engineering and Tunnels，2011，(4)：37-44.(in Chinese))
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2013, Vol. 32 
