In light of the characteristics of bored piles, the processes of impro ving the bearing capacity of bored-piles are summarized in this paper.

• 针对钻孔灌注桩的特点，归纳和总结出提高钻孔灌注桩承载力的工艺措施有预加载法、扩大端承面积和桩端注浆法。