根据裙房作用于基底的压力不小于或者小于基底水浮力两种情况，推导和分析了

根据裙房作用于基底的压力不小于或者小于基底水浮力两种情况，推导和分析了在水浮力作用下裙房对主楼地基承载力计算的影响。计算结果显示，当基底下土的类别不同时，等效地基承载力特征值随基底水浮力变化体现出较大的差异。第1种情况下，等效地基承载力特征值随基底水浮力增加一般呈下降趋势；第2种情况下，等效地基承载力特征值随基底水浮力增加，根据土的类别不同，分别呈现上升及下降两种相反的趋势。本文建议进行地基承载力验算时应考虑地下水的影响，最终取值宜综合考虑。

根据裙房作用于基底的压力不小于或者小于基底水浮力两种情况，推导和分析了在水浮力作用下裙房对主楼地基承载力计算的影响。 计算结果显示，当基底下土的类别不同时，等效地基承载力特征值随基底水浮力变化体现出较大的差异。 第1种情况下，等效地基承载力特征值随基底水浮力增加一般呈下降趋势；第2种情况下，等效地基承载力特征值随基底水浮力增加，根据土的类别不同，分别呈现上升及下降两种相反的趋势。 本文建议进行地基承载力验算时应考虑地下水的影响，最终取值宜综合考虑。

According to the two cases that the pressure of podium acting on the basement is not less than or less than the water buoyancy of the basement, the influence of podium on the calculation of foundation bearing capacity of the main building under the action of water buoyancy is deduced and analyzed. The results show that the characteristic value of the equivalent foundation bearing capacity varies with the buoyancy of the foundation bottom when the types of soil under the foundation are different. In the first case, the characteristic value of the equivalent foundation bearing capacity tends to decrease with the increase of the foundation bottom water buoyancy; in the second case, the characteristic value of the equivalent foundation bearing capacity tends to increase with the increase of the foundation bottom water buoyancy. According to the different types of soil, the characteristic value of the equivalent foundation bearing capacity tends to increase and decrease respectively. This paper suggests that the influence of groundwater should be considered when checking the bearing capacity of foundation, and the final value should be considered comprehensively.<br>