Tunnel Geological Prediction Radar Alternating Electromagnetic Field Propagation Attenuation in Lossy Inhomogeneous Medium
Tunnel geological prediction of ground-penetrating radar waves propagation in a lossy inhomogeneous medium,there must be a high-frequency attenuation.We must consider the electrical energy and magnetic energy of the relaxation loss,while the tunnel surrounding the quality factor in determining the attenuation of the necessary elements.Three parameters are not independent of unrelated,but from a different side to reflect the attenuation.Considering the coupling effect between three parameters,culminating in the establishment of the radar electromagnetic waves attenuation coefficient,in inhomogeneous rock medium exists the presence of relaxation phenomenon.For the geological radar effectively identify the reflected wave with different properties,different absorption and attenuation characteristics to analyze and study the surrounding rock structures,are well ahead of geological forecast guidance tunneling significance.
Tunnel geological prediction Radar Dielectric relaxation properties Attenuation
Si Yang Chen Yan Peng Zhu Zhong Li Tian Yu Zhang
Collage of civil engineering,Lanzhou University of Technology,lanzhou730050,China Lanzhou military political department management office,lanzhou73OOOO,China
国际会议
沈阳
英文
724-729
2012-09-26（万方平台首次上网日期，不代表论文的发表时间）