摘要
以深圳北环电缆隧道工程为依托,基于Midas/GTS有限元软件,建立极小半径盾构隧道转弯段施工的三维有限元数值模型,分析千斤顶力对管片受力和变形的影响,以及盾构隧道施工过程中地表沉降的变形规律,并建立盾构超挖的数值模型进行对比,最后与盾构掘进数据进行对比,为实际工程的开展提供有效参考。
Based on the Shenzhen North Ring Cable Tunnel Project and Midas/GTS finite element software,this paper establishes a three-dimensional finite element numerical model of turning section construction of minimal radius shield tunnel,analyses the influence of jack force on segment stress and deformation,and the deformation law of surface settlement during shield tunnel construction,and establishes a numerical model of shield overexcavation,and finally compares it with shield tunneling. The data are compared to provide effective reference for the development of practical projects.
作者
董志伟
丁小彬
邓毛毛
杨志永
Dong Zhiwei;Ding Xiaobin;Deng Maomao;Yang Zhiyong(The 2nd Engineering Co.,Ltd. of China Railway Tunnel Group,Sanhe 065201,China;School of Civil Engineering and Transportation,South China University of Technology,Guangzhou 510641,China)
出处
《山西建筑》
2019年第18期137-139,共3页
Shanxi Architecture
关键词
盾构
有限元
地表沉降
shield
finite element
surface subsidence
