基桩声波透射完整性等级判定标准探讨  

Analysis on the Rating of Piles Cross-Hole Sonic Logging Integrity of Foundation Pile

作　　者：仇道刚 陈启超 刘国跃 QIU Daogang;CHEN Qichao;LIU Guoyue(Nanjing measure and Control Technology Co.,Ltd.,Nanjing Jiangsu 210032,China)

机构地区：[1]南京铭创测控科技有限公司,江苏南京210032

出　　处：《工程质量》2022年第9期51-54,共4页Construction Quality

摘　　要：在基桩声波透射检测中,笔者认为目前的完整性等级判定体系整体偏严格。在工程实践中,有些桩的检测数据依据规范判定为Ⅲ类、Ⅳ类,如果再依据取芯法进行检测,取芯结果判定为Ⅰ类、Ⅱ类的不在少数。然而,这并不是声波透射检测技术不成熟导致的,而是目前的完整性等级判定体系有不合理的地方。通过分析基桩声波透射检测的缺陷判定原理、缺陷模型理论分析,再结合实际的工程案例,分析现有判定体系存在的问题,并且提出了更加合理的判定方式。In the cross-hole sonic logging test of foundation pile,the author considers that the current rating system of integrity is too strict as a whole. In the project,the detection data of some piles are determined as class III and IV according to the standard,and If the detection is carried out according to the coring method,plenty of them will be determined as class I and II. However,the result is not caused by the immaturity of cross-hole sonic logging detection technology,but because the current rating system of integrity is unreasonable. This paper analyzed the defect of cross-hole sonic logging detection of foundation pile to determine the principle and make the theoretical analysis of defect model,and combined with the engineering case,also analyzed the problems existing in the current rating system,and put forward a more reasonable rating method.

关 键 词：声波透射测桩 完整性等级判定 取芯检测 

分 类 号：TU473[建筑科学—结构工程]