高速地质雷达在隧洞混凝土衬砌质量检测中的应用  

Application of high-speed ground penetrating radar in detecting the quality of tunnel concrete lining

作　　者：胡少伟[1] 陆俊[1] 牛志国[1] 

机构地区：[1]南京水利科学研究院,江苏南京210029

出　　处：《水利水运工程学报》2010年第2期1-6,共6页Hydro-Science and Engineering

摘　　要：SIR-3000型高速地质雷达能连续、快速、全面、精确地对地下结构衬砌进行无损检测.论述了该项技术中探测天线、介电常数和环境电导率等重要参数的选用原则及其混凝土衬砌质量的判别.应用SIR-3000型高速地质雷达技术对宁波某引水隧洞混凝土衬砌质量进行检测评价,针对该工程确定了检测方案和需设置的参数,分析了典型缺陷的图像结果,表明检测结果具有很高的准确性.SIR-3000 high-speed ground penetrating radar is one of the advanced ground penetrating radar test equipments.It can carry out non-destructive testing on the lining of underground structures continuously,fast,completely,and accurately.This article presents the choosing principle of the testing antenna,dielectric constant and environmental conductivity and so on,which are the important parameters in this technology,and discusses how to judge the quality of concrete lining.Then this technology is appiled to an evaluation test for the diversion tunnel concrete lining in Ningbo.First of all,it determines the detection program and sets the detecting parameters according to the project requirement.Secondly,it analyses typical defect images and makes the coring site testing.The results show very high accuracy.It will provide an effective support and judgement to builders in controling the quality of concrete and eliminating the incipient fault of project quality.

关 键 词：高速地质雷达 引水隧洞混凝土衬砌 质量评价 检测参数设定 

分 类 号：TV672.1[水利工程—水利水电工程] TU332[建筑科学—结构工程]