超深钻孔灌注桩施工要点

The key points for construction of ultra-deep bored piles

根据现阶段超深钻孔灌注桩运用的广泛性,参照以往施工经验指出了超深钻孔灌注桩施工过程中可能出现的质量问题,并分析了产生质量问题的原因。结合超深钻孔灌注桩施工过程,提出了超深钻孔灌注桩施工要点,为超深钻孔灌注桩施工提供参考依据,减少或避免超深钻孔灌注桩施工质量问题。

In order to reduce the construction quality problem of ultra-deep bored piles,based on the extensive application of ultra-deep bored piles at the present stage,combined with previous construction experience,the paper summarized the quality problems that may occur in the construction stage of ultra-deep bored piles,with analyzing the cause of the quality problem. Including of the construction process of ultra-deep bored piles,propose the construction keypoints of ultra-deep bored piles,which provide reference for similar projects.