浙江大学学报(工学版)  2017, Vol. 51 Issue (8): 1509-1518    DOI: 10.3785/j.issn.1008-973X.2017.08.005
 土木与交通工程

1. 浙江大学 建筑工程学院, 浙江 杭州 310027;
2. 杭州地铁集团有限责任公司, 浙江 杭州 310020;
3. 上海建工集团股份有限公司, 上海 201114;
4. 浙江省交通规划设计研究院, 浙江 杭州 310002;
5. 温州市交通投资集团有限公司, 浙江 温州 325000
Shield tunnel segment and circumferential joint performance under surface surcharge
SUN Lian-wei1,3, QIN Jian-she2, HONG Yi1, WANG Li-zhong1, ZHAO Chang-jun4, QIN Xiao5
1. Department of Civil Engineering, Zhejiang University, Hangzhou 310027, China;
2. Hangzhou Metro Group Limited Company Co., Ltd., Hangzhou 310020, China;
3. Shanghai Construction Group Limited Compamy., Ltd., Shanghai 201114, China;
4. Zhejiang Provincial Institute of Communications Planning, Design and Research, Hangzhou 310002, China;
5. Wenzhou Communication Investment Group Limited Company, Wenzhou 325000, China
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Abstract:

A three-dimensional numerical method which can analyze the influence of surface surcharge on the segment and circumferential joint of shield tunnel was established aiming at the problem of the surface surcharge effect on the tunnel lining and joint. The continuum finite element model was used to analyze the additional stress caused by the ground loading in the method and a three load-structure numerical analysis was conducted base on the model. Every ring of shield tunnel was equivalent to homogeneous ring and bolt connection was adopted between the ring and ring. The computational effort, was reduced and the main longitudinal characteristics of the shield tunnel was reflected. The method was used to analyze the response of segments and circumferential joints of Hangzhou metro line 1 shield tunnel under surface surcharge compared with the results of field monitoring. Results show that the numerical simulation results accorded well with the field results. The deformation and failure regulation of tunnel segments and circumferential joints under surface loading can be revealed by using the method.

 CLC: U452

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SUN Lian-wei, QIN Jian-she, HONG Yi, WANG Li-zhong, ZHAO Chang-jun, QIN Xiao. Shield tunnel segment and circumferential joint performance under surface surcharge. JOURNAL OF ZHEJIANG UNIVERSITY (ENGINEERING SCIENCE), 2017, 51(8): 1509-1518.