...权网上交易中心 关键词： 负摩阻力；深桩基础；下拉荷载；群桩效应；基桩[gap=774]Key words： negative frictional resistance； deep pile foundati on； downward load； action of group piles； foundation pile..
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Pile side negative frictional resistance is the main problem of pile foundation in collapsible loess site. The article analysed regularity of occurrence and development of the neutral point depth and negative frictional,resistance,and made a detailed study of their influencing factors.
桩侧负摩阻力是湿陷性黄土场地桩基的主要问题。
参考来源 - 浸水条件下湿陷性黄土场地桩基特性研究·2,447,543篇论文数据，部分数据来源于NoteExpress
And the mechanism causing the difference is also analyzed based on the concept of negative frictional resistance.
并根据打桩引起的桩负摩阻力概念对两类桩基沉降差异的机制作了分析。
This paper expatiates on the causes of negative frictional resistance which may appear on bridge piles, analyses the calculation methods and gives ten methods reducing it.
阐述了桥梁桩基负摩阻力产生的原因，分析了桩基中性点位置确定、负摩阻力计算等问题，并提出了十条有效减少负摩阻力的措施。
At the same time, the revised method can be used to calculate the settlement of a bored pile and that of a foundation pile caused by negative frictional resistance around the pile.
同时，该修正方法可应用到钻孔灌注桩及桩侧负摩阻力引起的基桩沉降计算中。
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