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上软下硬地层浅埋暗挖工法适应性模拟
引用本文:张洁溪,郭福成,雷刚.上软下硬地层浅埋暗挖工法适应性模拟[J].地下空间与工程学报,2011,7(Z1):1415-1421.
作者姓名:张洁溪  郭福成  雷刚
作者单位:1. 同济大学地下建筑与工程系,上海,200092
2. 青岛市地下铁道公司,山东青岛,266022
3. 北京城建设计研究总院有限责任公司青岛分院,山东青岛,266001
摘    要:以青岛地区埋置于上软下硬典型地层中的地铁车站为例,选取双侧壁导坑法和单拱大空间法,利用三维有限元软件对两种施工方法的整个开挖过程进行数值模拟,重点对开挖过程中的地表和拱顶位移、围岩应力和支护结构内力等方面进行了分析.研究表明,与单拱大空间施工方法相比较,在上软下硬地层中采用双侧壁导坑施工方法能有效控制地表和拱顶沉降以及...

关 键 词:上软下硬地层  浅埋暗挖  双侧壁导坑法  单拱大空间法  有限元数值模拟

Study on Construction Methods of Shallow-buried Tunnel under Condition of Upper-soft Lower-hard Ground by Numerical Simulation
Zhang Jiexi,Guo Fucheng,Lei Gang.Study on Construction Methods of Shallow-buried Tunnel under Condition of Upper-soft Lower-hard Ground by Numerical Simulation[J].Chinese Journal of Underground Space and Engineering,2011,7(Z1):1415-1421.
Authors:Zhang Jiexi  Guo Fucheng  Lei Gang
Affiliation:Zhang Jiexi1,Guo Fucheng2,Lei Gang3(1.Department of Geotechnical Engineering,Tongji University,Shanghai 200092,China,2.Qingdao Subway Company,Qingdao,Shandong 266022,3.Beijing Urban Engineering Design and Research Institute Co.,Ltd.Qingdao Branch Institute,Shandong 266001,China)
Abstract:Three-dimensional finite element simulation method is employed in order to simulate the entire excavation process of 2 different construction methods,which are two-side wall pilot tunnel method and single arch large space method,of a metro station under condition of upper-soft lower-hard ground in Qingdao.Present study is focused on the displacement of ground surface and tunnel crown,the stress of surrounding rock and the internal forces of supporting structure.The results show that,two-side wall pilot tunn...
Keywords:upper-soft lower-hard ground  shallow-buried tunnel  two-side wall pilot tunnel method  single arch large space method  finite element numerical simulation  
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