桩基负摩阻力计算方法与研究趋势探讨

On tendency exploration of calculation method and research on negative friction of pile foundation

从桩基负摩阻力产生的机理入手,阐述了负摩阻力对桩基的不利影响,介绍了中性点深度的影响因素及其计算方法,负摩阻力的各种计算方法,以及考虑桩基负摩阻力的承载力验算,并进行了实例分析与计算,最后介绍了减轻负摩阻力的工程优化措施,并对其研究趋势进行了总结与展望。

From the mechanism of the formation of the negative friction in pile foundation,the paper illustrates the negative influence of the negative friction on the pile foundation,introduces the influential factors of the depth of the neutral points and its calculation methods,all kinds of calculative methods of the negative friction,and the consideration on the loading force calculation of the negative friction,has the analysis of examples and calculation,and introduces the project optimization measures to reduce the negative friction, and provides the summery and expectation of its research tendency.