论文部分内容阅读
本文根据t—z曲线法,提出单桩在轴向荷载下近似的弹塑性解的闭合形式,该闭合解可以用非常简单的方法预估桩的竖向位移及桩头处的沉降以及离地面某深度处的轴向荷载。与弹性解不同,该方法能考虑荷载～沉降曲线的非线性关系。因为是以闭合解导出的简单近似表达式,该方法不适用于以端承力为主的端承桩。但是,当只在设计荷载下分析及所选择的土参数适当时,该方法能得出非常满意的结果。与文献中有关现场足尺试验数据相比,证明结果颇为一致。
Based on the t-z curve method, this paper proposes the closed form of the approximate elasto-plastic solution of a single pile under axial load. The closed solution can be used to estimate the vertical displacement of the pile and the settlement at the pile head and off the ground. Axial load at a certain depth. Unlike elastic solutions, this method can consider the nonlinear relationship between load and settlement curves. Because it is a simple approximate expression derived from a closed solution, this method is not applicable to end bearing piles that are mainly end bearing. However, this method can yield very satisfactory results when analyzed only under design loads and when the selected soil parameters are appropriate. Compared with the literature on the full-scale test data in the field, the results are quite consistent.