人工挖孔扩底灌注桩是高层建筑常用的一种桩基础形式，其施工质量的好坏直接影响到建筑的结构安全。

Usually the poured pile by artificial excavation expanding bottom is one foundation pile style of tall building, whose quality can affect the structural safety of the construction directly.

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分析了影响钻孔灌注桩桩身施工质量及强度的主要原因，提出了预防桩身质量通病的相关技术措施。

The impact reasons of bored pile construction quality and intensity are analyzed. Related technology and measures to prevent pile quality problems are put forward.

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文章就钻孔灌注桩施工技术的应用及施工质量进行了探讨。

Foundation Project for the article on the application and construction quality were discussed.

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