摘要
以西安地铁一线工程为背景,基于黄土力学参数,运用岩土工程数值分析软件FLAC3D,进行了黄土地层地下隧道开挖对周围土体变形影响的计算机模拟分析。根据黄土场地的实际条件,建立了隧道的计算模型,利用FLAC3D程序,模拟了黄土隧道开挖过程中前期支护条件、后期加固措施等因素对隧道内部地表、拱顶、侧墙以及地上建筑物沉降的影响程度和塑性区、位移的分布规律。可为黄土地区的地下工程建设提供一定的参考。
The numerical analysis on influence of tunnel excavation on the deformation of surrounding soil in loessial strata is performed based on loessial mechanics parameters of Xi′an Metro Line No.1 by using the numerical analysis software,FLAC3D.The computation model of the tunnel is established based on the actual loessial field conditions.The regularities of the deformation of inner ground surface,vault and sidewall of the tunnel and the settlement of ground buildings in the earlier and later stages of tunnel excavation are studied.
出处
《岩石力学与工程学报》
EI
CAS
CSCD
北大核心
2004年第z1期4333-4338,共6页
Chinese Journal of Rock Mechanics and Engineering
基金
国家自然科学基金(50379043)资助项目。
关键词
隧道工程
黄土隧道
理想弹塑性
模拟开挖
FLAC3D
tunneling engineering,loess tunnel,ideal elastoplasticity,excavation simulation,FLAC3D
