摘要
通过对地质雷达进行衬砌质量无损检测的基本原理和技术流程分析,主要分析了探测过程中技术参数的设置、滤波处理、数据分析和结果评定等详细的实施方法,并通过实际的隧道工程应用对雷达探测技术的有效性进行了检验。结果表明,采用雷达探测技术能有效地检测出隧道初期支护拱背空洞、混凝土厚度不足和型钢间距不达标等常见质量问题。
This paper illustrates the technical principle and the specific implementation process of nondestructive detection method of ground penetrating radar for expressway tunnel support structure. The practical application of GPR can detect the quality problem such as cavity, insufficient thickness of concrete and unqualified spacement of steel girder of the tunnel support structure.
出处
《福建建筑》
2014年第10期19-22,共4页
Fujian Architecture & Construction
关键词
公路隧道
支护结构
无损检测
地质雷达
Highway Tunnel
Support Structure
Nondestructive Detection
Ground Penetrating Radar
