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现代隧道技术 2017, Vol. 54 Issue (5) :61-69    DOI:
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盾构隧道施工引起的土体变形分析
(1 上海市岩土地质研究院有限公司 上海 200072;2 同济大学地下建筑与工程系,上海 200092;3 同济大学岩土及地下工程教育部重点实验室,上海 200092;4 上海申通地铁集团有限公司,上海 201103;5 上海市城市建设设计研究总院,上海 200125)
Soil Mass Deformation Induced by Shield Tunnel Construction
(1 Shanghai Geotechnical Engineering & Geology Institute Co. Ltd., Shanghai 200072; 2 Department of Geotechnical Engineering,College of Civil Engineering, Tongji University, Shanghai 200092; 3 Key Laboratory of Geotechnical and Underground Engineering,Tongji University, Ministry of Education, Shanghai 200092; 4 Shanghai Shentong Metro Co.Ltd., Shanghai 201103; 5 Shanghai Urban Construction Design & Research Institute, Shanghai 200125)
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摘要 文章基于弹性半无限空间内的Mindlin解,通过分析侧压力对沉降槽的影响,对地表沉降槽的组成进行了分析,并对单线隧道地表位移的影响参数进行了系统的敏感性研究。其中,地层弹性模量、泊松比、隧道埋深、应力释放系数的改变会影响土体损失,而泊松比、隧道埋深、侧压力系数的改变则会影响沉降槽宽度参数。最后对不同深度地层受隧道施工影响的地层损失和沉降槽宽度参数进行了分析,由于所受约束的不同,与地表水平位移相比,地层中的水平位移明显减小。
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关键词盾构隧道 土体变形 Peck公式 O′Reilly &   New公式     
Abstract: Based on the Mindlin solution in a semi-infinite elastic space, the composition of a settlement trough is studied by analyzing the influence of lateral pressure on the ground settlement trough, and a systematic sensitivity study on the influential parameters for the surface displacement of a single tube tunnel is conducted. Changes to the elastic modulus, Poisson′s ratio, the buried depth and the stress release coefficient will affect ground loss, while changes to Poisson′s ratio, the buried depth and the lateral pressure coefficient will affect the width parameters of the settlement trough. The parameters for ground loss and settlement trough width affected by tunnel construction at different stratum depths are analyzed. Compared with the horizontal surface displacement, the horizontal displacement in the stratum decreases significantly due to different confinement conditions.
KeywordsShield tunnel,   Soil mass deformation,   Peck formula,   O′Reilly &,   New formula     
基金资助:

基金项目:国家自然科学基金项目(51378388).

作者简介: 作者简介:谢东武(1980-),男,博士,高级工程师,国家注册土木工程师(岩土),主要研究方向为软土地下工程与环境保护, E-mail:xdw980829@163.com. 通讯作者:丁文其(1969-),男,博士,教授,博士生导师,主要从事岩土及地下工程施工力学方面的教学与研究工作, E-mail: dingwq@tongji.edu.cn.
引用本文:   
.盾构隧道施工引起的土体变形分析[J]  现代隧道技术, 2017,V54(5): 61-69
.Soil Mass Deformation Induced by Shield Tunnel Construction[J]  MODERN TUNNELLING TECHNOLOGY, 2017,V54(5): 61-69
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