沙琅江Ⅱ号桥拓宽部分桩基灌注缺陷的处理与分析  

Analysis and Treatment of the Pile Foundation Defects in Shalang River Ⅱ Bridge Widening

作　　者：吴利 

机构地区：[1]广东省基础工程公司,广州510620

出　　处：《广东土木与建筑》2012年第9期54-55,53,共3页Guangdong Architecture Civil Engineering

摘　　要：针对沙琅江Ⅱ号桥拓宽部分的桩基础出现的质量缺陷进行了原因分析,并对有质量缺陷的桩基通过端承及竖向承载力计算,提出了比较合理的处理意见,即对桩底夹泥、断层缺陷采用注浆补强加固处理,并介绍了具体施工工艺,解决了灌注桩缺陷带来的问题。The paper first addresses the causes of the pile foundation quality defects in Shalang River Ⅱ Bridge widening part.Based on the calculation of the end-bearing and vertical bearing capacity of the pile foundation defects,it suggests that some rational methods of treatment which include using grouting reinforcement to reinforce the end-bearing pile and fault defects.The paper concludes with describing the specific construction techniques to solve the problems caused by the bored pile defects.

关 键 词：钻孔灌注桩 承载力 竖向抗压承载力 缺陷 极限侧阻力 

分 类 号：U445.551[建筑科学—桥梁与隧道工程]