灌注桩质量问题处理原则和方法  

Treatment Principle and Approach of Bored Pile Quality Problems

作　　者：刘金波[1] 郭金雪[1] 张松[1] 张寒[1] 赵岚涛 

机构地区：[1]中国建筑科学研究院,北京100013

出　　处：《施工技术》2018年第1期143-147,共5页Construction Technology

摘　　要：针对实际工程中经常出现的灌注桩桩位偏差超出规范规定、桩身混凝土强度达不到设计要求、桩身出现颈缩甚至断桩4种工程质量问题,为避免或减少类似桩基质量问题发生,结合作者的工程经验,总结了可能造成此类桩基质量问题的原因,给出了此类工程事故处理原则,介绍了处理中需考虑的因素,并推荐了处理方法。Location deviation of bored pile exceeds the requirement of standard, concrete strength cannot meet the requirement of design, reducing diameter and broken pile are engineering quality problems often appear in actual bored pile engineering. In order to avoid similar quality problems, reasons result in these kinds of problems are summarized in this paper combining author＇ s engineering experience. Disposal principle, factors to be considered and methods are also provided in this paper.

关 键 词：桩基础 灌注桩 强度 颈缩 断桩 处理原则 方法 

分 类 号：TU753.3[建筑科学—建筑技术科学]