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本文采用有限单元法分析弹性地基上的片筏基础,可分别模拟片筏基础和地基土,考虑土的层状分布,将地基模拟成分层地基,并考虑土与基础的共同作用,使计算模型更符合实际。通过典型实例,比较了Winkler地基,弹性半空间地基和分层地基对计算结果的影响,并探讨了片筏不同刚度和不同地基条件对计算结果的影响,得到了一些有实用意义的结论。所编EFP程序可在IBM—PC上运用。
In this paper, the finite element method is used to analyze the laminar foundations on elastic foundations. It can simulate the lamination foundation and the subsoil respectively, consider the layered distribution of the soil, simulate the foundation of the substratum, and consider the joint action of the soil and the foundation to make the calculation model. More realistic. Through typical examples, the effects of Winkler foundation, elastic half-space foundation and layered foundation on the calculation results were compared. The influence of different stiffness and different foundation conditions on the calculation results was discussed. Some practical conclusions were obtained. The compiled EFP program can be used on IBM-PC.