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通过对各种抗浮措施的对比分析,确定了地下车站的抗浮适宜采用大直径人工挖孔抗拔桩。对于结构不同部位的刚度和受荷都不均匀的复杂换乘车站,采用空间有限元模型计算可以达到理想的结果。通过对一在建的大型地铁换乘车站的计算和分析讨论,提出了抗拔桩平面布置应遵守的原则,进而论述了车站抗浮计算及抗拔桩设计的全过程,可为今后复杂大型地下空间结构的抗浮设计提供参考。
Through comparative analysis of various anti-flooding measures, it is determined that anti-floating of underground stations is suitable for large-diameter artificial digging uplift piles. For the complex transfer station with different stiffness and load in different parts of the structure, the finite element model can be used to calculate the ideal result. Based on the calculation and analysis of a large subway transfer station under construction, the principles to be followed in the plane layout of anti-pull pile are put forward, and the whole process of anti-floating calculation and anti-pull pile design at station is discussed. Anti-floating design of underground space structure for reference.