自由锤夯扩桩以细砂层为持力层的适用限度

Adaptable limitation of free hammer tamping and expanding pile with hydrous sandy layer as the bearing stratum

通过湖景花园小区具体工程实例,探讨了自由锤夯扩桩以含水细砂层为持力层的适用限度,经过设计计算论证,进行了设计变更,根据桩基检测,证明了设计变更后桩长满足了设计要求。

Through specific engineering of Hujing garden community as example, this paper discusses the adaptable limitation of free hammer tamping and expanding pile with hydrous sandy layer as the bearing stratum, by digeussing design and calculation, and carries on design alteration. According pile foundation detection, it proves that： the pile length after design alteration meets the design requirement.