自重湿陷性黄土地区桩基设计探讨

Discussion on Pile Foundations Design in Damping Collapse Loess under Dead Weight

根据自重湿陷性黄土的特点、《湿陷性黄土地区建筑规范》(GB 50025-2004)和《建筑桩基技术规范)(JGJ 94-94)中关于桩基设计的对比分析,通过自重湿陷性黄土场地工程实例分析计算,依据负摩擦产生的机理——中性点理论,论述了自重湿陷性黄土场地中桩基设计应考虑中性点,而不应全部计入负摩阻的观点。

Because of the characteristics of damping collapse loess under dead weight, by the comparative analysis on pile construction design in Construction Standards of Damping Collapse Loess Area（ GB 50025 -2004） and Technical Regulation of Construction Pile Foundation（ JGJ 94 -94）, Based on analytical calculation on the field case and according to negative friction mechanism--nutral point theory, it is expounded that for pile construction design in damping collapse loess under dead weight, neutral point should be taken into consideration and negative friction not be substitute in total.