不同水平距离地铁区间开挖对既有框架位移影响分析  

Analysis of Frame Structure's Displacements Due to Subway Excavation with Different Horizontal Distance

作　　者：樊哲超[1,2] 毛海涛[1] 

机构地区：[1]重庆三峡学院土木工程学院,重庆404100 [2]重庆交通大学水利水运工程教育部重点实验室,重庆400074

出　　处：《科学技术与工程》2014年第32期297-301,共5页Science Technology and Engineering

基　　金：国家自然科学基金项目(51309262);重庆市教委科学技术研究项目(KJ1401018);重庆交通大学国家内河航道整治工程技术研究中心暨水利水运工程教育部重点实验室开放基金资助项目(SLK2013B02)资助

摘　　要：伴随城市地铁线路的大规模修建,地铁开挖对既有框架结构的影响已成为普遍问题,亟待解决。研究在不同水平距离时地铁开挖对框架结构的影响,基于有限元软件建立模型,计算地铁开挖对框架结构的位移影响,得出不同水平距离地铁开挖引起框架结构竖向、水平位移的变化情况。比较全面地涵盖了不同水平距离地铁开挖对框架结构的影响问题,可使工程技术人员对这一问题有比较系统的认识,为解决此类问题提供理论依据。With large-scale construction of subway lines, the influence of the subway excavation to the frame structure has been an common problem to be solved. Applying finite element software to upbuild three-dimensional model of the subway excavation with different horizontal distance and the frame structure, displacements＇ change of the frame structure caused by subway excavation is worked out. The change and obtain settlement are analyzed, hor- izontal displacement variation of the frame caused by subway excavation with different horizontal distance. A more comprehensive coverage of the influence between the subway and the frame structure in different situations, will enable engineering and technical staff a more comprehensive understanding on this issue, has been provided guiding significance for solving the engineering problems to some extent.

关 键 词：地铁 既有框架结构 有限元软件 水平距离 位移影响 

分 类 号：U212.331.2[交通运输工程—道路与铁道工程]