CFG桩复合地基工程质量验收常见问题分析及探讨

Analysis and discussion on common problems of quality acceptance of CFG pile composite foundation

本文根据相关规范并结合工程实践分析了CFG桩复合地基验收标准中六个主控项目和六个一般项目常见的工程质量问题,并对这些问题的出现原因进行了分析。同时探讨了验收标准新增加的一般检测项目"桩顶标高"允许偏差存在的问题,并建议验收标准一般项目增加"褥垫层厚度"检查项。本文可供设计人员和工程施工人员设计施工时参考。

According to the relevant specifications and engineering practice,the common engineering quality problems of six dominant items and six general items in the CFG pile composite foundation acceptance standard,the causes of the engineering quality problems are also given.Moreover,the problem of allowable deviation of pile top elevation which is a general item newly added to acceptance standard is discussed.It is suggested that the cushion thickness as a general item is added to acceptance standard.It is available for the designers and construction personnel to refer to the paper.