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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     
地面堆载下盾构隧道管片与环缝接头的性状分析
孙廉威1,3, 秦建设2, 洪义1, 王立忠1, 赵长军4, 秦肖5
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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摘要:

针对地面堆载对隧道管片与环缝接头影响的问题,提出地面堆载对下方隧道管片及环缝接头影响的三维数值分析模型和方法.该方法采用连续体有限元模型分析堆载引起的附加应力,并提取应力调整系数,将盾构隧道每环拼装结构等效为均质圆环、环与环之间采用螺栓连接,进行应力叠加三维荷载-结构分析.减少计算工作量,反映盾构隧道主要纵向特性.应用该方法对杭州地铁1号线隧道管片以及环缝接头在堆载作用下的响应进行分析,与现场监测结果进行对比.结果表明,数值模拟结果与现场结果有着较好的吻合,能够有效揭示隧道管片和环缝接头在堆载作用下的变形和破坏规律.

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.

收稿日期: 2016-07-29 出版日期: 2017-08-16
CLC:  U452  
基金资助:

国家自然科学基金重点资助项目(51338009).

通讯作者: 秦建设,男,高级工程师.ORCID:0000-0002-0298-8716.     E-mail: Qinjianshe@hzmetro.com
作者简介: 孙廉威(1989-),男,博士生,从事盾构隧道结构响应等研究.ORCID:0000-0003-1301-8819.E-mail:erik0711@126.com
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引用本文:

孙廉威, 秦建设, 洪义, 王立忠, 赵长军, 秦肖. 地面堆载下盾构隧道管片与环缝接头的性状分析[J]. 浙江大学学报(工学版), 2017, 51(8): 1509-1518.

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.

链接本文:

http://www.zjujournals.com/eng/CN/10.3785/j.issn.1008-973X.2017.08.005        http://www.zjujournals.com/eng/CN/Y2017/V51/I8/1509

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