各向异性和非均质地基土上浅基础的极限承载力

Ultimate bearing capacity of shallow footing on anisotropic and nonhomogeneous clays

应用塑性极限分析法上限定理及变分原理,确定非均质及各向异性地基土的极限承载力,导出了确定非均质和各向异性地基土极限承载力的基本公式。利用编制的计算机程序分析了土非均质和各向异性参数对承载力的影响。将结果与其他学者结果进行了比较,说明用本文提出的方法获得的承载力结果更为可靠。

By use of the upper limit theorem of plastic limit analysis and variational principle, the ultimate bearing capacity of anisotropic and non-homogeneous foundation soils were ascertained, and the basic formulas were derived. It was analyzed with the computation program how the anisotropic and non-homogeneous parameters influenced the bearing capacity. The results were compared with other scholar＇s results. It was shown that the bearing capacity obtained by this method was more reliable.