倾斜荷载作用下层状非均质地基的极限承载力

Ultimate bearing capacity of layered inhomogeneous foundations under inclined loads

通过一定的室内模型试验对倾斜荷载作用下层状非均匀地基的极限承载力进行了试验研究。引入荷载倾斜影响系数,对于层状非均质地基的极限承载力计算公式进行了修正,给出了倾斜荷载作用下的地基极限承载力计算公式。根据模型试验结果,对所建立的计算公式进行验证。结果表明,对于倾斜荷载作用下的层状非均匀地基,根据修正后的 Meyerhof 承载力公式所得到的计算结果能够较好地与试验结果吻合。

A series of model loading tests on gravel foundation overlying sand are carried out to investigate ultimate bearing capacity of layered foundation under inclined loads. The effects of the thickness of gravel, the width of footing and the inclination angle of load on the bearing capacity of foundation are examined. An empirical correlation coefficient of inclination of load is developed and the improved formulas for evaluating ultimate bearing capacity of layered foundation under inclined loads are presented. The results computed by the improved formulae are compared with the experimental test data. It is shown that the correlated Meyerhof’s formulae can well agree with the model test results.