铁路隧道复合式衬砌极限状态设计研究

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Abstract Research purposes:With constant development of design and construction technology of tunnel，the deficiencies of limit states design method in current Code for Design on Tunnel of Railway in practical application has been shown. In order to apply to practice better, the paper presents some advice for optimizing limit states design method in new requirements by doing research.

Research conclusions:(1)New practical limit states design equations of railway tunnel are established.(2)Newoptimization principles and determination methods of partial coefficients are provided.(3)Partial coefficients for the loads of railway tunnel composite lining，in good accordance with target reliability index，are obtained through practical examples. (4)The research results can be directly used to guide the design of the tunnel composite lining and guide to revise the Code for Design on Tunnel of Railway.

Key words： railway tunnel composite lining reliability limit states design method partial coefficients

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	Articles by authors
	ZHAO Wan一qiang
	LI Lei
	WANG Zheng一dong
	LI Shao一meng

Cite this article:

ZHAO Wan一qiang,LI Lei,WANG Zheng一dong, et al. Study on Optimizing Limit States Design of Railway Tunnel Composite Lining[J]. Journal of Railway Engineering Society, 2015, 32(6): 62-68.

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https://tdgcxb.crec.cn/EN/ OR https://tdgcxb.crec.cn/EN/Y2015/V32/I6/62

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