钻孔灌注桩基础质量通病的成因及其控制

The reasons of quality common disease of the base of drilling cast-in-place piles and its control

分析了影响钻孔灌注桩桩身质量及孔桩上部分强度的主要原因,从桩上段混凝土强度的保证措施、桩基质量的保证措施、混凝土灌注施工的技术要点三方面详细阐述了桩基质量的控制措施,以供桩基施工人员参考。

It analyses the main affection reasons of quality of pile itself of drilling cast-in-place pile and the part strength of core pile,and represents the control steps of pile foundation quality in detail from the assurance steps of the concrete strength of the upper pile and the pile foundation quality and the technology points of concrete cast-in-place construction,to give a reference to the construction people of pile foundation.