盾构隧道通_错缝拼装管片受力及变形比较.pdf

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第 3卷第 4期地下空间与工程学报 Vol. 3
2007年 8月 Chinese Journal of Underground Space and Engineering Aug. 2007
盾构隧道通、错缝拼装管片受力及变形比较
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严长征 1, 2 ,张庆贺 1, 2 ,王慎堂 3
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(1. 同济大学岩土工程重点实验室,上海 200092; 2. 同济大学土木工程学院地下建筑与工程系,
上海 200092; 3. 夏威夷大学,夏威夷 999204)
摘要:通缝、错缝管片在国内盾构隧道施工中均有运用,关于两种衬砌形式孰优孰劣的
争论一直存在。基于两种衬砌的结构特征,采用修正的地层弹簧模型,结合南京地铁一号线的
工程实例,对通、错缝拼装隧道衬砌使用阶段的受力及变形进行了对比分析。得出了一些有益
3 的结论,为设计施工提供参考。
关键词: 盾构隧道衬砌,错缝,通缝,地层弹簧模型,边值法
中图分类号: TU94 文献标识码: A 文章编号: 1673 0836 (2007) 04 0703 04
Com par ison of In terna l Forces and D isplacem en ts between
Con tinuous - jo in ted and Stagger - jo in ted Segm en ta l L in ing
YAN Chang zheng1, 2 , ZHANG Q ing he1, 2 ,WANG Shen tang3
(1. Key L aboratory of Geotechnical Engineering, Tongji U niversity, Shanghai 200092, P. R. China
2. D epartm ent of Geotechnical Engineering, School of C ivil Engineering, Tongji U niversity, Shanghai 200092, P. R. China
3. U niversity of Haw aii atM anoa, Haw aii 999204, U. S. A )
Abstract: Both continuous - jointed segmental lining and stagger - jointed segmental lining are used in shield
driven tunnels. W hich kind of segmental lining is better is still a question. Due to structural characteristics of the lin
ings, based on the p roject ofMetro line No. 1 in Nanjing, the internal forces and disp lacements of the two kinds of
lining during their construction pared