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收稿日期: 2007-05-11
修回日期: 2007-06-13
网络出版日期: 2010-04-20
Analysis of Doublearch Tunnel on Metro Backturning Line
Received date: 2007-05-11
Revised date: 2007-06-13
Online published: 2010-04-20
通过ANSYS程序采用弹塑性有限元模型及合理的计算参数,模拟分析地铁站前或站后折返线区间双连拱隧道分步施工过程中围岩体应力场和位移变形状况,以及支护衬砌结构的受力与变形规律。重点介绍了双连拱隧道结构设计与施工优化措施。
关键词: 折返线 双连拱隧道 结构选型 分析
杨德春 , 唐琪 . 双连拱隧道结构在地铁折返段应用与计算分析[J]. 隧道建设, 2007 , 27(增刊) : 268 -272 . DOI: A
Through the calculation using the elastic plastic finite element model (ANSYS program), the numerical simulation of displacements and the maximum principal stresses in the ground during the stepexcavation of a doublearch tunnel on the metro backturning line is performed. And the distribution laws of stress and deformation in the lining are also analyzed. The design and construction of the doublearch tunnel are discussed finally.
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