土工基础

›› 2018, Vol. 32 ›› Issue (5): 487-489.

• 工程实录 • 上一篇    下一篇

静压预应力管桩施工质量缺陷及处理办法

孙春利1，赵玉波2，李志艳3，张 军4   

  1. （1．山东省建设建工（集团）有限责任公司，济南 250014;2.山东天宇工程项目咨询有限公司，济南 250101;
    3.济南新泉城建设项目管理有限公司，济南 250000;4.山东大学岩土与结构工程研究中心，济南 250061）
  • 收稿日期:2018-08-10 修回日期:2018-08-15 出版日期:2018-10-30 发布日期:2018-11-02
  • 作者简介:孙春利（1970-），男，高级工程师，研究方向为建筑业相关新技术、工程项目全过程咨询等。

Integrity and Mitigations of Static Pressed-in Pre-Casted Prestressed Concrete Pipe Piles with Defects

SUN Chunli1, ZHAO Yubo2, LI Zhiyan3,  ZHANG Jun4   

  1. (1.Shandong Construction Engineering (Group) Co., Ltd., Jinan 250014;2.Shandong Tianyu Engineering Project Consulting Co., Ltd., Jinan 250101;
    3.Jinan New Spring City Construction Project Management Co., Ltd., Jinan 250000;
    4.Geotechnical Engineering Research Center, Shandong University, Jinan 250061)
  • Received:2018-08-10 Revised:2018-08-15 Online:2018-10-30 Published:2018-11-02

摘要： 静压预应力管桩施工周期短，适应范围广，无噪音，虽广泛应用于工程建设，但施工质量问题依然不可避免。以济南西客站安置三区B2地块为例，针对静压预应力管桩实际出现的施工质量问题进行分析，提出了解决预应力管桩施工中未达设计标高、承载力不足、桩身完整性差等问题的处理办法，工程经验可供类似工程参考。

关键词: 静压法, 预应力管桩, 质量缺陷, 处理方法

Abstract: The static pressed-in pre-casted prestressed reinforced concrete pipe piles have become increasingly popular due to their advantages of short construction period, applicable to a wide range of soils and minimized noise. The pile installation induced defects are unavoidably existed despite the effective quality control and quality assurance measures applied in the construction. This paper presents a case history of defect mitigation of pre-casted concrete piles installed in the third relocation residential district for the West Highspeed Rail Passenger Station Project in Jinan City. The defected pre-casted concrete piles are evaluated and categorized. Recommendations are proposed for piles that above the desired pile tip elevation, axial capacity that lower than the design value and piles having integrity concerns.

Key words: Static Pressed-In Pile Installation Method, Pre-casted Prestressed Concrete Pipe Piles, Pile Defect, Mitigation Methods