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简述地质雷达的工作原理,并介绍赐儿山隧道的地质雷达超前预报的测线布置、探测技术参数等。通过对地质雷达扫描图像的研究和分析,以及与隧道掌子面开挖后的实际地质情况作对照,指导该隧道掌子面的开挖,并进一步证明地质雷达在隧道掘进时能准确地探测掌子面前方围岩状况,从而有效避免事故的发生。
Briefly describe the working principle of GPR, and introduce the survey layout and detection technology parameters of advance prediction of Geer radar in Through the research and analysis of the geological radar scanning images and the actual geological conditions after the excavation of the face of the tunnel, it guides the excavation of the face of the tunnel and further proves that the geological radar can detect the tunnel accurately Rock face in front of the situation, so as to effectively prevent the accident.