摘要
在铁路、公路和水电站等项目的建设中,隧道、地下洞室工程通常是最为重要的工程。探地雷达作为一种快速、高效、高分辨率的无损探测技术,已在隧道衬砌厚度检测中得到推广和应用。这里介绍了探地雷达检测方法的工作原理,应用于隧道衬砌厚度检测时的测线布置,以及反射信号的形成过程,并讨论了应该如何结合地质、设计、施工资料对隧道衬砌结构层位进行划分。
Tunnels and underground caverns are usually the most important projects in railway, highway and hydropower station construction. Ground Penetrating Radar (GPR) as a noninvasive high-frequency, high-resolution, broad-spectrum electromagnetic (EM) geophysical technique for subsurface exploration is applied rapidly and widely in the thickness detection of tunnel lining. This paper mainly introduces the detecting principle of GPR, survey lines location, the formation of reflected signals and discusses about how to distinguish and trace these interfaces in tunnel lining with geological information, design data and construction materials.
出处
《物探化探计算技术》
CAS
CSCD
2008年第3期231-234,共4页
Computing Techniques For Geophysical and Geochemical Exploration
关键词
探地雷达
隧道衬砌
反射波成像
ground penetrating radar
tunnel lining
reflected wave imaging
