Analysis of the Interference Waveform Characteristics of Ground Penetrating Radar (GPR) for Tunnel Engineering
(1Yunnan Institute of Building Research, Kunming 650223;2 Yunnan Research Center of Geotechnical Engineering Technology,Kunming 650223; 3 Honghe Highway Administration Detachment, Honghe 661400;4 College of Environment and Civil Engineering,Chengdu University of Technology, Chengdu 610059)
Abstract：
Ground Penetrating Radar (GPR) has been used widely in tunnel engineering, however, interference fac?
tors are often encountered in the process of tunnel detection that lead to abnormal reflection waveforms covering the effective waveforms, which seriously affects the subsequent interpretation work. In this paper, the interference factors encountered in tunnelling detection are divided into three types, e.g., the coupling interference, construction interference and interference in special circumstances; the waveform characteristics of GPR interference waves are analyzed and effective treatment measures for inhibiting GPR interference factors are put forward, ensuring effective interpretation and identification of the interference waveforms and accurately avoiding the misjudgment of GPR interference waveforms.
.Analysis of the Interference Waveform Characteristics of Ground Penetrating Radar (GPR) for Tunnel Engineering[J] MODERN TUNNELLING TECHNOLOGY, 2017,V54(3): 32-36
2017, Vol. 54 