摘要
当盾构隧道下穿城市建筑物时,因隧道周边土体与建筑物间存在相互作用效应,盾构施工诱发的地面沉降必然与其穿越无建筑物的自由地层有所不同.为此,通过大型通用有限元软件ANSYS对无锡地铁1号线盾构区间部分风险点建立了三维有限元模型进行数值分析,并将计算结果和现场实测数据对比,揭示了盾构施工扰动对地层位移场以及建筑物隆沉的影响规律.
Due to interaction effect between the soil and buildings, ground settlement for the underpass buildings in shield construction is bound to differ from that for no buildings around a tunnel. To solve the problem, ground surface settlement and building settlement were analyzed with three-dimensional finite element method models, and the calculation results were compared directly with on-the-spot data for the metro shield tunnel engineering, revealing the influence law of the disturbance of soil mass and building caused by shield tunnelling.
作者
黎春林
缪林昌
陈静
LI Chun-lin MIAO Lin-chang CHEN Jing(Institute of Civil and Architectural Engineering, Tongling University, Tongling 244000, China Institute of Geotechnical Engineering, Southeast University, Nanjing 210096, China)
出处
《山东理工大学学报（自然科学版）》
CAS
2017年第1期12-16,共5页
Journal of Shandong University of Technology:Natural Science Edition
基金
国家自然科学基金项目(51278099)
安徽省自然科学基金项目(1408085ME98
1608085ME103)
安徽省高校自然科学研究项目(KJ2015A255
KJ2015A176)
关键词
盾构隧道
建筑物
地表沉降
有限元
shield tunnel
building
ground surface settlement
FEM
