Study on calculation model of flexural behavior of shield segment joint
CHEN Biguang1，2，CHEN Weizhong2，GUO Xiaohong1
(1. CCCC Second Highway Consultants Co.，Ltd.，Wuhan，Hubei 430056，China； 2. Institute of Rock and Soil Mechanics，Chinese Academy of Sciences，Wuhan，Hubei 430071，China)
Abstract：A stress related stiffness reduction factor is firstly proposed to describe flexural behaviour of shield segment joint without packing material. An empirical formula of the factor is suggested based on the results of flexural tests. Explicit analytical solutions of moment-rotation relation for shield segment joint is derived，which can be directly used in structure analysis of shield segments. The suggested analytical solutions can reflect the influence of axial force on the flexural behaviour. The entire process that the flexural stiffness of segment joint decreases with increasing rotation angle until the destruction can be described well by the suggested analytical solutions. The comparison with full scale tests shows that the analytical solutions have good agreement with test results. Therefore，the analytical solutions suggested here may have great value in engineering.
陈必光1，2，陈卫忠2，郭小红1. 盾构隧道纵缝接头抗弯计算模型研究[J]. 岩石力学与工程学报, 2016, 35(S1): 2953-2959.
CHEN Biguang1，2，CHEN Weizhong2，GUO Xiaohong1. Study on calculation model of flexural behavior of shield segment joint. , 2016, 35(S1): 2953-2959.
黄钟晖.盾构法隧道错缝拼装衬砌受力机制的研究[博士学位论文][D].上海：同济大学，2001.(HUANG Zhonghui. Research on stagger-jointedsegmental lining behavior of shield tunnel[Ph. D. Thesis][D]. Shanghai：Tongji University，2001.(in Chinese))
[2]
师永翔，赵武胜. 大直径盾构隧道接头抗弯性能研究[J]. 现代隧道技术，2013，50(1)：115-121.(SHI Yongxiang，ZHAO Wusheng. Research on flexural rigidity of the segment joint of a large-diameter shield tunnel[J]. Modern Tunnelling Technology，2013，50(1)：115-122.(in Chinese))
[3]
曾东洋. 盾构隧道衬砌结构力学行为及施工对环境的影响研究[博士学位论文][D]. 成都：西南交通大学，2005.(ZENG Dongyang. Research on the mechanical behavior of shield tunnel lining structure and influences on the environment in construction[Ph. D. Thesis][D]. Chengdu：Southwest Jiaotong University，2005.(in Chinese))
[4]
董新平. 盾构管片接头接触面缺陷模型分析[J]. 岩土工程学报，2013，35(7)：1 369-1 374.(DONG Xinping.Contact surface flaw model for segment joints of segmented tunnel lining[J]. Chinese Journal of Geotechnical Engineering，2013，35(7)：1 369-1 374.(in Chinese))
[5]
董新平，解枫赞. 一类盾构管片接头破坏历程的解析解[J]. 岩土工程学报，2013，35(10)：1 870-1 875.(DONG Xinping，XIE Fengzan. Analytical solution of segment joint model for segmented tunnel lining[J]. Chinese Journal of Geotechnical Engineering，2013，35(10)：1 870-1 875.(in Chinese))
[6]
HORDIJK D A，GIJSBERS F B J，BOORTUNNELS P. Laboratoriumproeven tunnelsegmenten[R]. [S.l.]：Delft，Reporte Interno K100-W-026，TNO-Bouw， 1996.
[7]
何 川，张建刚，苏宗贤. 大断面水下盾构隧道结构力学特性[M].北京：科学出版社，2010：52-54.(HE Chuan，ZHANG Jiangang，SHU Zongxian. Structure mechanics characteristics of underwater shield tunnel with large cross-section[M]. Beijing：Science Press，2010：52-54.(in Chinese))
朱 伟，胡如军，钟小春. 几种盾构隧道管片设计方法的比较[J]. 地下空间，2003，23(4)：352-357.(ZHU Wei，HU Rujun，ZHONG Xiaochun. Comparative study of several segment design methods forshield tunnels[J]. Underground Space，2003，23(4)：352-356.(in Chinese))
[10]
IFTIMIE T. Prefabricated lining，conceptional analysis and comparative studies for optimal solution[J]. International Journal of Rock Mechanics and Mining Sciences and Geomechanics Abstracts，1995，32(3)：136A-137A.
[11]
JANSSEN P. Tragverhalten von tunnelausbauten mit gelenktubbings[Ph. D. Thesis][D]. Braunschweig：Technischen Universitat Carolo-Wilhelmina，1983.
[12]
封 坤. 大断面水下盾构隧道管片衬砌结构的力学行为研究[博士学位论文][D]. 成都：西南交通大学，2011.(FENG Kun. Research on mechanical behavior of segmental lining structure for underwater shield tunnel with large cross-section[Ph. D. Thesis][D]. Chengdu：Southwest Jiaotong University，2011.(in Chinese))
2016, Vol. 35 
