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Displacement of Prestressed Pipe Pile Tops: Phenomena and Causes

2016-05-16 794 0人评论

1、现象：在沉桩过程中，相邻的桩产生横向位移或桩身上浮。
2、原因：
a、桩入土后遇大块坚硬障碍物，把桩端挤向一侧。
b、两节桩或多节桩施工时，相接的两节桩不在同一轴线上，产生了曲折。
c、土壤饱和密实，在沉桩时土被挤到极限密度而向上隆起，导致相邻桩被浮起。
d、在软土地基施工较密集的群桩时，由于沉桩引起的孔隙水压力把相邻的桩推向一侧或浮起。

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Displacement of Prestressed Pipe Pile Tops: Phenomena and Causes

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