桩底后注浆技术在钻孔灌注桩中的应用  

Application of Injection Technology Under Pile to the Drilled Grouting Pile

作　　者：周东明 

机构地区：[1]宁波市建筑工程安全质量监督总站,浙江宁波315010

出　　处：《土工基础》2009年第2期12-14,共3页Soil Engineering and Foundation

摘　　要：后注浆工艺可有效地提高钻孔灌注桩的单桩承载力,对砾石、砂层而言,效果尤为显著。但桩侧后注浆因质量控制较困难,其效果不如桩底后注浆工艺。The technique of post grouting is able to increase effectively the bearing capacity of single pile of drilled grouting pile, especially to gravel bed, the effect is distinct. However, because of the difficulty in quality control, the technique of grouting under pile is better than post grouting.

关 键 词：钻孔灌注桩 后注浆 静载荷试验 极限荷载 

分 类 号：TU473[建筑科学—结构工程]