考虑径向位移时柔性桩荷载传递机理研究

Study on Mechanism of Load Transfer on Flexible Pile when Considering Radial Displacement

基于李海芳竖向位移模式,考虑桩体径向位移,根据轴对称弹性理论,分析柔性桩的荷载传递。根据桩侧摩阻力条件,导出有效桩长的计算式,进而获得桩身应力、桩侧摩阻力的计算式。通过对比分析,验证计算式的合理性,并对相关参数的影响进行了分析。

Based on the Li Haifang＇s vertical displacement mode, load transfer on flexible pile was analyzed, which considered the radial displacement of pile body, and depended on the axisymmetric elastic theory. According to the conditions of pile side friction, the formula of effective pile length was derived, further those of pile stress and pile side friction. Through comparative analysis, the rationality of these formulas was verified, then the influence on related parameters were studied.