含竖向增强体复合土体的极限承载力

Ultimate bearing capacity of composite soils

用极限分析法研究了三向受力复合土体的极限承载力，给出了被加固土体内摩擦角不等于零时的解析解。应用本文方法分析了含有砂芯粉土复合土体的强度，并与试验结果作了比较，结果表明此方法是有效的。

In this paper, a new method is presented for determining the ultimate bearing capacity of composite soils. Firstly, the complete analytical solutions are given for the strength of a composite cell subjected to a triaxial loading corresponding to both the upper and lower bounds analyses, which provide an insight into the reinforcement mechanism. The results of the analysis agree well with those of the experiments.