不同频率雷达天线在矿山法隧道检测中的适应性研究

Study on Adaptability of Radar Antennas with Different Frequencies in Mine Tunnel Detection

探地雷达作为矿山法隧道的一种高效无损的质量检测技术,在地铁矿山法隧道检测中得到广泛应用。通过预制混凝土标准块模拟矿山法隧道衬砌形态来研究探地雷达的检测精度已得到广泛认可。本文采用GSSI公司900 MHz、1.5 GHz天线对矿山法隧道不同工况下的标准块进行数据采集、分析,研究不同频率天线对不同衬砌形态的适用性及检测精度。

Ground penetrating radar(GPR),as an efficient and nondestructive quality detection technology for mining tunnels,has been widely used in subway tunnel detection.It has been widely recognized that the detection accuracy of ground penetrating radar(GPR) is studied by simulating the lining shape of mining tunnel with precast concrete standard blocks.In this paper,GSSI 900 MHz and 1.5GHz antennas are used to collect and analyze the data of standard blocks in different working conditions of mining tunnel,and the applicability and detection accuracy of antennas with different frequencies to different lining forms are studied.