摘要
以北京地铁某地下车站工程为背景,采用FLAC 3D有限差分软件建立车站主体结构三维模型,对车站运用PBA洞桩法施工进行数值模拟,对各个施工阶段下导洞拱顶、地表、临近建筑物以及管线的沉降与变形进行数值模拟计算,计算结果表明各项指标均满足相关要求。
Taking the underground station project ofBeijing metro as an example,using FLAC3D fi nitedifference software to establish a three-dimensionalmodel of the station main structure,a numericalsimulation is carried out on the station using PBAcavern-pile method construction,to simulatesettlement and deformation of pilot tunnel vault,surface and vicinity buildings and pipelines at allconstruction stages.The calculation results show thatthe parameters meet the relevant requirements.
作者
马玉杰
张霞
Ma Yujie;Zhang Xia
出处
《现代城市轨道交通》
2017年第10期30-34,共5页
Modern Urban Transit
关键词
地铁车站
PBA法
大断面开挖
环境影响
数值分析
metro station
PBA method
large section excavation
environmental impact
numerical analysis
