浅埋城市隧道开挖方案比选分析与应用

Shallow urban tunnel excavation analysis and application of Comparison and selection

以合肥市市府广场公交换乘中心改造工程下穿地道工程为背景,采用FLAC3D数值分析软件模拟浅埋城市隧道开挖对工程环境的影响,以控制地面沉降量为主要目标,比选左右侧壁台阶分部法和正台阶开挖法两种施工工法,比选后的施工方案在工程中得到成功应用。

Hefei City Hall Plaza, bus transfer centers to wear under the Road Improvement Project Engineering background, Step with left and right lateral segment method and the excavation method is step two construction methods, numerical analysis software simulation with FLAC3D City Tunnel excavation shallow impact on the surrounding environment, to control land subsidence as the main target selection, than after the election The program has been successfully applied in engineering.