【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。更多还原

【Abstract】 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.更多还原