摘要
以北京地铁10号线国贸站～双井站区间隧道施工为背景,采用有限元差分程序FLAC3D建立了有限元模型,对盾构推进过程中隧道应力、变形及地表沉降规律进行研究。通过隧道上方地表横向监测点沉降、隧道中心地表沉降和地表建筑物基础沉降实测值与计算值比较,得出模拟计算结果与实际检测结果比较符合,但实际施工过程中存在复杂性和不确定因素。
Based on construction of Guomao station-Shuangjing station of Beijing Metro Line 10,tunnel stress,deformation and ground surface settlement are researched through calculation by FLAC3D software. Furthermore,some calculating results are compared with monitoring results such as transverse settlement of ground surface,ground surface settlement over vault and building foundation settlement. The comparison shows that calculating results accord with monitoring results,however,there are complex uncertain factors in practical construction.
出处
《施工技术》
CAS
北大核心
2010年第5期12-14,共3页
Construction Technology
关键词
地铁隧道
盾构施工
有限元
地表沉降
土体位移
metro tunnel
shield construction
finite element method
ground surface settlement
soil displacement
