Research on bearing capacity behavior of precast concrete piles in gravel stratum

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Research on bearing capacity behavior of precast concrete piles in gravel stratum

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- Research on bearing capacity behavior of precast concrete piles in gravel stratum
- Vol. 29, Issue 5, (2008)
- 作者机构：
  
  福建省建筑设计研究院,福州,350001
- 作者简介：
- 基金信息：
- DOI：
  CLC： TU473
- Online First：24 July 2013，
  
  Published：2008
- 稿件说明：
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LIU Jun-long. Research on bearing capacity behavior of precast concrete piles in gravel stratum[J]. 2008, 29(5).
DOI：

LIU Jun-long. Research on bearing capacity behavior of precast concrete piles in gravel stratum[J]. 2008, 29(5). DOI：

摘要

依据59根桩静载荷试验实测结果和桩侧相关土层的标贯试验成果，反算出砾卵石持力层中预制桩的极限桩端阻力，结合7根桩身埋设有应力计的预制桩桩端阻力的实测成果，分析了砾卵石层中的预制桩的桩端阻力、桩端荷载分担比例及端阻充分发挥所需的桩端位移。通过对121根以砾卵石为持力层的预制桩的静载试验成果与静压法施工终压力的比较，分析了砾卵石层中静压预制桩的施工终压力与极限承载力的关系。

Abstract

Based on the test data of fifty nine static loading tests driven into gravel stratum of precast concrete piles and the results of standard penetration test in the layers beside the pile

combining with the results of the in-situ stress tests of seven precast concrete piles

the end resistance

the partake scale of end resistance with total load acting on the pile and the displacement to exerting the end resistance of pile are analyzed. Through the test data of one hundred and twenty one static loading tests and the final pressure acting on the pile

the relationship between the ultimate bearing capacity and the final pressure acting on the pile of precast concrete pile statically pressed into gravel stratum is discussed.

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