武汉轨道交通名都车站深基坑有限元分析

Analysis on deep pit of Mingdu Station of Wuhan subway by FEM

为了保证地铁站深基坑的顺利施工,需要分析基坑土层压力对围护结构的影响。在武汉地铁名都站设计时,采用MIDAS-GTS岩土计算软件对深基坑受力情况进行了有限元模拟分析。通过对深基坑的水平位移、沉降、钻孔桩内力及支撑轴力等的分析,论证了基坑施工过程的安全性和稳定性。实际施工监测资料表明,监测数据与数值模拟结果一致,说明有限元分析可以作为设计分析的一种有效手段。

In order to guarantee the smooth construction of deep pit of a subway station, the action on surrounding protection structure under soil pressure should be analyzed. In the design of Mingdu Station of Wuhan subway, the force condition of deep pit was simulated and analyzed by FEM, using MIDAS- GTS software. Through analysis of horizontal displacement, settlement, internal force in drilling hole and support axial force etc. , the safety and stability of deep pit of the station in construction were demonstrated. The monitoring data in practical construction showed that the monitored data was in accordance with the simulation results.