基于冲击回波等效厚度法的预应力管道压浆密实度无损检测技术研究  

Nondestructive Detection Technology of Prestressed Pipe Grouting Density Based on Impact Echo Equivalent Thickness Method

作　　者：徐宏武[1] 唐文洋[2] 刘大昌[2] 张朋[1] 

机构地区：[1]招商局重庆交通科研设计院有限公司,重庆400067 [2]重庆交通大学,重庆400041

出　　处：《公路交通技术》2017年第4期43-47,共5页Technology of Highway and Transport

基　　金：招商局重庆交通科研设计院有限公司自主创新项目(170185)

摘　　要：相较于传统IE法提出等效厚度法概念,并介绍冲击回波等效厚度检测方法和基本原理。使用基于冲击回波法原理的检测仪器对现场一组预制T梁的压浆管道进行对比试验,试验结果表明:冲击回波等效厚度法能有效检测预应力管道压浆密实情况,可根据预应力管道等效厚度的变化准确定位空洞位置。This paper proposed the equivalent thickness method comparing with conventional IE method.The impact echo equivalent thickness detection method and basic principle were also introduced.The detection gauges based on impact echo equivalent thickness detection method were used to carry out comparison test to a group of prefabricated T beam grouting pipes on site,results show：the impact echo equivalent thickness detection method may effectively detect prestressed pipe grouting density,and it was able to accurately determine the position of hollow according to variation of prestressed pipe equivalent thickness.

关 键 词：冲击回波 等效厚度 预应力管道压浆 密实度 无损检测 

分 类 号：U448.215[建筑科学—桥梁与隧道工程]