双曲线上曲率最大点预测桩基竖向极限承载力的预测

从解析几何的角度分析了传统双曲线方法,该方法是用平行于沉降轴的渐近线来判定极限承载力；提出了采用双曲线上曲率最大点来判定极限承载力.在实际工程应用中,与传统方法进行了对比分析.结果表明:采用曲率最大点判定极限承载力得到的Qu是传统的以渐近线判定得到的Qult作折减所得,曲线越平坦折减越多；在极限承载力随拟合采用荷载级数...

Prediction of Ultimate Bearing Capacity of Single Pile by the Maximum Curvature Point of Hyperbolic

From the analytic geometry 's point of view,the asymptotic which parallel to the settlement axis had been employed to determine the bearing capacity in the traditional hyperbolic method.In this paper the maximum curvature point of hyperbolic was used to ultimate bearing capacity of single pile.In practical application,the traditional methods were analysed comparing with the method proposed.The results showed that the ultimate bearing capacity Qu calculated by the method in this paper was equivalent to Qult reduction which was calculated by the traditional method.The flatter the curve was,the more the reduction.In the relationship of the ultimate bearing capacity and the load series,maximum curvature method agreed with traditional method;the ultimate bearing capacity would be stable and large with the increasing numble of the load series.