广州地铁暹岗站的抗浮计算分析

抗浮计算是地下地铁车站设计的重点，而计算参数、计算模型的选取对抗浮计算结果有较大影响。抗浮计算中部分参数的选取尚无统一规定，且使用阶段结构底板，尤其是轨道范围内的位移控制尚未引起足够重视。针对广州地铁暹岗站抗浮设计，选取适当的计算参数及公式，并采用有限元结构计算软件分析结构底板位移，最终合理确定结构相关抗浮方案。在满足抗浮的同时，车站底板不仅需要满足结构挠度要求，还需要考虑使用阶段的结构位移。可采用有限元计算软件进行模拟计算。

Analysis on Anti-floating Calculation of Xiangang Metro Station in Guangzhou

Anti-floating calculation must be made in the design of underground Metro stations.The selection of the calculation parameters and calculation models has great influence on the result of the anti-floating calculation.However,so far there is no standard related to the selection of the anti-floating calculation parameters,and the attention paid to the displacement of Metro station floors,especially the displacement of floor part within the track scope,is inadequate.In the paper,regarding the anti-floating design of a Metro station in Guangzhou,proper calculation parameters and proper calculation formulas are selected,the displacement of the floor of the Metro station is analyzed by means of FEM program and proper anti-floating design is determined.The design of the Metro station should not only satisfy the anti-floating requirements,but also should satisfy the structural deflection requirements and the service structural displacement requirements.FEM program can be used in the anti-floating design of the Metro station.