摘要 以合肥市地铁1号线明挖隧道上方庐州大道施工为例,通过建立有限元模型,研究了城市道路施工期间明挖隧道的变形特性,重点探讨了在道路开挖过程中,分层均布开挖和跳仓抽条开挖这2种工况下隧道结构和周围地层的变形。结果表明,道路施工对下卧隧道会产生一定的影响,跳仓抽条开挖法对明挖隧道及其周围地层的变形影响较小,可为相似工程提供借鉴。 Taking the construction of Luzhou Avenue above the open-cut tunnel of Hefei Metro Line 1 as an example,the deformation characteristics of open-cut tunnels during urban road construction were studied through the establishment of a finite element model.This paper focused the deformation of the tunnel structure and surrounding stratum under the two working conditions of layered uniform excavation and skipping excavation during road excavation.Through comparative analysis,the results showed that the road construction had a certain influence on the underlying tunnel and the skipping-and-stripping excavation method had little effect on the deformation of the open-cut tunnel and the surrounding stratum,which provided reference for similar projects.
机构地区 安徽建筑大学土木工程学院
出处 《湖北理工学院学报》 2021年第2期43-47,共5页 Journal of Hubei Polytechnic University
基金 安徽省高校科学研究项目(项目编号:KJ2019JD02) 安徽省“六卓越一拔尖”卓越人才培养创新项目(项目编号:2019zyrc080)。
