联合检测钻孔灌注桩的完整性

Application of Method of Combined Low Strain with Core Drilling in Detecting the Integrity of Cast-in-place Bored Pile

钻孔灌注桩的完整性检测,有其自身的特点。而常用的低应变法本身也有其局限性,对于缺陷的类型(如缩径、离析、夹泥等)无法进行明确的判别,通过一个工程实例结合钻芯法做进一步的检测,以确定桩身的完整性等级,取得较好效果。

the integrity detection of cast-in-place bored pile has its own characteristics, and the low strain method is often used,however,it＇ is limited in distinguishing the type （ including reducing diameter, segregation, infiltrated mud and son on） of defect clearly. In the paper, starting from a case study, the authors detect the pile with core drilling method to determine the integrity level of piles, which finally effects well.