摘要
由于在役桩基存在承台、桩帽、盖梁等上部结构,现有桩基完整性检测技术难以实施应用,在役结构桩基完整性检测仍是一个世界级的技术难题。针对该难题,双速度法、超震波法、弯曲波法、旁孔透射法、电磁波CT法、动力荷载法等各种检测技术被提出。本文简要介绍了各检测技术的基本原理,结合工程实例中应用的效果,综合论述了各种检测技术的优缺点以及应用范围,以期为检测人员找出可行的检测技术,更好地服务工程实践。
Due to the existence of upper structures as pile caps and bent caps etc.,it is difficult to implement and apply the existing pile foundation integrity detection technology which is a world-wide technical challenge.In view of this problem,various pile detection techniques have been proposed,such as double velocity method,ultraseismic method,bending waves method,parallel seismic method,electromagnetic wave CT method,dynamic load method.The fundamentals of each pile detection technology are briefly introduced in this paper,and based on the application effect of engineering examples,the advantages and disadvantages of each detection technology and its application range are described comprehensively,so as to find out feasible detection technologies for inspectors in engineering practice.
作者
张磊
杨炎华
刘建波
Zhang Lei;Yang Yanhua;Liu Jianbo(CCCC Second Harbor Engineering Company Ltd.,Wuhan 430040;Key Laboratory of Transport Industry for Large Span Bridge Construction Technology,Wuhan 430040;Research and Development Center of Transport Industry for Intelligent Manufacturing Technologies of Transport Infrastructure,Wuhan 430040;CCCC Highway Bridges National Engineering Research Centre Co.,Ltd.,Beijing 250073)
出处
《工程建设》
2019年第10期56-60,共5页
Engineering Construction
关键词
在役桩基
桩基完整性检测
低应变动测法
旁孔透射法
电磁波CT法
动力荷载法
in-service piles
detection of pile foundation integrity
low strain dynamic testing
parallel seismic method
electromagnetic wave CT method
dynamic load method