（1 铜陵市建筑工程施工图设计文件审查有限公司， 铜陵244000； 2 铜陵市建设工程质量监督监测有限公司， 铜陵 244000）

［摘要］总结了管桩施工不合格的处理方法，其中桩承载力不足、偏位、倾斜的处理方法及桩身完整性为Ⅳ类桩时的接桩处理方法同样适合于其他预制桩和灌注桩，具有一定的通用性。该处理方法弥补了目前国内这方面资料的不足，对设计人员有一定的参考价值。通过分析指出：《建筑桩基技术规范》（JGJ 94—2008）第7-4-5条“四桩承台中的桩允许偏位为1/2桩径或边长”的规定过松，不安全；《建筑桩基技术规范》（JGJ 94—2008）应规定混凝土预制桩倾斜率限值。并介绍了某18层建筑大量管桩偏位、断桩和倾斜的处理方法。

［关键词］管桩； 桩偏位； 桩倾斜； 桩承载力； 桩身完整性； 桩身缺陷； 补桩

中图分类号：TU473文献标识码：A文章编号：1002-848X(2019)03-0113-07

Treatment method of unqualified pipe pile construction

Li Guosheng 1,2

(1 Tongling Architectural Works Construction Drawing and Design Documents Examination Co., Ltd., Tongling 244000， China;  2 Tongling Construction Engineering Quality Supervision and Testing Co., Ltd., Tongling 244000, China)

Abstract:The treatment methods of unqualified pipe pile construction were summarized. The treatment methods of pile bearing capacity insufficiency, deviation, inclination and pile body integrity of Ⅳ type pile were also suitable for other prefabricated and cast-in-place piles, which had certain universality. This treatment method made up for the shortage of domestic information in this field, and had a certain reference value for designers. Through analysis, it is pointed out that the section 7-4-5 of  Technical code for building pile foundation (JGJ 94—2008) stipulating "the allowable deviation of pile in four pile caps is 1/2 pile diameter or side length" is unsafe;   Technical code for building pile foundation (JGJ 94—2008) should stipulate the limit value of inclination ratio of precast concrete piles. The treatment methods of deviation, broken pile and inclination of a large number of pipe piles in an 18-storey building were also introduced.

Keywords:pipe pile; pile deviation; pile inclination; pile bearing capacity; pile body integrity; pile body defect; pile repair

作者简介：李国胜，学士，高级工程师，一级注册结构工程师，Email:693950802@qq.com。