摘要
灌注桩采用桩端压力灌浆新工艺后,能大幅度地提高基桩承载能力,减小其沉降,在工程中已应用多年。大量工程实践表明其对不同地层的适应性是不同的,某工程中钻孔灌注桩现场试验结果显示:桩端压力灌浆工艺在卵石层中灌注桩运用效果良好,经济、社会效益显著。
New technology of pressure grouting under pile tip at cobble layer can largely improve pile bearing capacity and reduce its settlement.This technology has applied to project for years.A great number of engineering case indicated that the adaptability of the tech-nology varied in different soil layer.A site test proved a very good performance of pressure grouting under pile tip at cobble layer and e-conomic benefit achieved as well.
出处
《建筑技术》
北大核心
2003年第2期111-113,共3页
Architecture Technology
关键词
桩端
压力灌浆
卵石层
灌注桩
cast-in-place pile
cobble layer
bearing capacity
