超浅埋大跨暗挖地铁车站隧道施工方案分析

Analysis of construction procedure for subway station with large span clearance and shallow in city

利用FLAC3D对大跨超浅埋站厅隧道进行多种施工方案的模拟,通过对比隧道在不同方案下的施工效应,选择较优的方案进行施工,从而很好地解决实际工程问题,同时对类似工程提供较为合理的优化施工方案。

Using FLAC30 code, the numerical simulation on this the station hall excavation is presented. Some excavation methods about the station hall whose embedded depth is very shallow were simulated. The best method was selected by compare of the effects of different excavation methods. The engineering problem was solved, and it will supply a rational optimization way for similar engineering