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浙江大学学报(工学版)
浙江大学学报(工学版)  2018, Vol. 52 Issue (2): 317-324    DOI: 10.3785/j.issn.1008-973X.2018.02.014
土木与交通工程     
类矩形土压平衡盾构施工引起的地表变形
张雪辉1,2, 陈吉祥1,2, 白云1,2, 陈昂1,2, 黄德中3
1. 同济大学 地下建筑与工程系, 上海 200092;
2. 同济大学 岩土及地下工程教育部重点实验室, 上海 200092;
3. 上海隧道工程有限公司, 上海 200232
Ground surface deformation induced by quasi-rectangle EPB shield tunneling
ZHANG Xue-hui1,2, CHEN Ji-xiang1,2, BAI Yun1,2, CHEN Ang1,2, HUANG De-zhong3
1. Department of Geotechnical Engineering, Tongji University, Shanghai 200092, China;
2. Key Laboratory of Geotechnical and Underground Engineering of Ministry of Education, Tongji University, Shanghai 200092, China;
3. Shanghai Tunnel Engineering Limited Company, Shanghai 200232, China
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摘要：

针对类矩形盾构施工的扰动控制问题，基于弹性力学Mindlin解，考虑刀盘正面附加推力、壳体与土体之间摩阻力、同步注浆压力以及土体损失4种因素的共同作用，采用数值积分法和叠加原理对地表变形进行计算分析.结果表明：4种因素共同作用下类矩形盾构掘进地表相当范围内表现为沉降，最大收敛沉降约为33 mm，开挖面前方的沉降影响主要集中在前方10 m范围；同步注浆压力产生的地表隆起可以部分抵消土体损失引发的沉降，因而合理的同步注浆有利于沉降控制；4类因素中，正面附加推力和盾壳摩阻力产生的地表变形很小.理论结果与实测数据基本吻合，可为后期类矩形盾构隧道施工的扰动控制提供理论参考.
Abstract:

The disturbance control of quasi-rectangle shield tunneling was analyzed. The coupling effects of the following four factors-the horizontal excess pressure at the excavation face, the friction between the shield skin and soil, the grouting force outside the tailskin and ground loss were analyzed based on the Mindlin solution. The ground surface deformation was calculated with numerical integration method and superposition. (1) Superposition of these four factors causes large ground surface settlement near the tunneling area, with a convergence settlement about 33 mm, and significant settlement occurs within 10 m ahead of the face; (2) Grouting force causes significant heave and can partially offset the settlement induced by ground loss, thus appropriate grouting can assist settlement control;(3) Of all the four factors, the ground deformation induced by horizontal excess pressure and skin friction is quite small, if compared with the other two factors. The theoretic results accorded with on-site monitoring data, which assists disturbance control of future quasi-rectangle shield tunneling.
收稿日期: 2016-12-20 出版日期: 2018-03-09
CLC:  TU443  
基金资助:

国家自然科学基金资助项目（51478340）；上海市科学技术委员会资助项目（14DZ1207803，14DZ1207900）；宁波市重大科技攻关资助项目（2015C110017）.
通讯作者: 白云,男,教授,博导.orcid.org/0000-0002-5246-1402.     E-mail: baiyun1958@tongji.edu.cn
作者简介: 张雪辉(1990-),男,硕士生,主要从事盾构隧道方面等研究.orcid.org/0000-0001-5436-4975.E-mail:zhangxhsh@aliyun.com
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引用本文:

张雪辉, 陈吉祥, 白云, 陈昂, 黄德中. 类矩形土压平衡盾构施工引起的地表变形[J]. 浙江大学学报(工学版), 2018, 52(2): 317-324.

ZHANG Xue-hui, CHEN Ji-xiang, BAI Yun, CHEN Ang, HUANG De-zhong. Ground surface deformation induced by quasi-rectangle EPB shield tunneling. JOURNAL OF ZHEJIANG UNIVERSITY (ENGINEERING SCIENCE), 2018, 52(2): 317-324.

链接本文:

http://www.zjujournals.com/eng/CN/10.3785/j.issn.1008-973X.2018.02.014    或    http://www.zjujournals.com/eng/CN/Y2018/V52/I2/317

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