土工基础

›› 2011, Vol. 25 ›› Issue (5): 42-44.

• 工程实录 • 上一篇    下一篇

PHC管桩施工易产生缺陷位置分析

张文琰1， 姚黎明2   

  1. （1.宁波市鄞州区建筑工程质量监督站,浙江宁波〓315000; 2.宁波市工业建筑设计研究院有限公司,浙江宁波〓315000）     
  • 收稿日期:2011-08-20 出版日期:2011-10-20 发布日期:2011-11-23
  • 作者简介:张文琰,女,1981年生,工程师,毕业于浙江工业大学土木工程专业。

Evaluation of the Defect Prone Locations in the PHC Pipe Pile Installation

ZHANG  Wen  yan1, YAO  Li  min2   

  1. (1. Construction Engineering Quality Supervision Station of Qingzhou District, Ningbo City, Zhejiang Ningbo 315000; 
    2. Ningbo Industrial Architectural Design & Research Institute Co., Ltd, Zhejiang Ningbo 315000, China)
  • Received:2011-08-20 Online:2011-10-20 Published:2011-11-23

摘要： 运用波动理论，对不同工程地质条件下柴油锤击打PHC管桩时桩身不同位置处应力的大小进行了探究，分析了管桩施工中易产生缺陷的位置，提出了有效预防和改进的施工措施，保证了施工质量。

关键词: 波动理论, PHC管桩, 压应力, 拉应力, 桩垫, 锤垫

Abstract: The dynamic stresses along the Pre\|stressed High\|strength Concrete (PHC) piles installed by the impulsive diesel hammers under different subsurface conditions are analyzed by the stress wave propagation theory. The possible defect locations within the piles and procedures to avoid these defects also discussed in the paper. The case study results indicate that these procedures are effective and the HPC pile installation quality can be improved.