北京地铁区间隧道施工过程三维动态数值模拟  

Three-dimensional Numerical Analysis of Construction Process for Tunnel Opening of Beijing Metro

作　　者：李宏建[1] 孙明磊[1] 朱永全[1] 

机构地区：[1]石家庄铁道学院土木工程分院,河北石家庄050043

出　　处：《石家庄铁道学院学报》2006年第1期30-33,共4页Journal of Shijiazhuang Railway Institute

摘　　要：结合北京地铁十号线工体北路站—呼家楼站区间隧道的具体情况,进行三维动态数值模拟,计算中分别考虑小导管注浆预加固和无预加固措施两种工况,通过数值模拟对比了两种工况下区间隧道台阶法施工过程地表沉降及拱顶沉降规律及小导管注浆预支护对隧道稳定性的影响。This paper adopts three-dimensional numerical method analyzing the construction process of tunnel opening of the metro segment from Gongti North Road to Hujialou. The analysis considers two situations respectively-construction with and without pre - support reinforcement. The target is to find out the pattern of the ground settlement and arch crown settlement during the construction and the influence of pre -support reinforcement on tunnel stability.

关 键 词：三维有限元 超前预支护 地表沉降 拱顶下沉 

分 类 号：U45[建筑科学—桥梁与隧道工程]