桩基负摩阻力在纠倾工程中的应用

Application of Negative Frictional Resistance of Pile Foundation on Deviation Correction

摘要:

:分析探讨了桩基负摩阻力的特性 ,提出了桩基下拉荷载的经验公式 ,并通过某深桩基础的纠倾工程验证了所建议公式的可行性 ,为桩基负摩阻力在建筑物纠倾工程中的应用提供了理论依据 ,为深桩基础建筑物的纠倾扶正技术提供了一种行之有效的方法

关键词:负摩阻力,深桩基础,下拉荷载,群桩效应,基桩

Abstract:

Empirical formula of downward load of pile foundation is presented based on analyzing characteristic of negative frictional resistance of pile foundation. Feasibility of the proposed formula is verified by a deviation correction engineering of deep pile foundation, which supplies theoretical foundation for application of negative frictional resistance of pile foundation on building inclination correcting engineering and supplies an effective method for building inclination correcting technology of deep pile foundation.

Key words:negative frictional resistance,deep pile foundation,downward load,action of group piles,foundation pile,