In order to prevent slope disasters in the reservoir area and ensure the safety of the reservoir,a landslide de-tection method based on unmanned aerial vehicle ground air transient electromagnetic method is proposed.By taking the Jiangkou Reservoir area as the research object,this work calculated the magnetic induction intensity of the reservoir through Maxwell's equations,and determined the azimuth of the detection by combining the magnetic induction intensi-ty,the signal emitted by the drone,and the detection radius.Based on the unmanned aerial vehicle ground to air tran-sient electromagnetic method,combined with the induced electromotive force data obtained from multiple detection points,locate the abnormal position of the landslide body.Using GNSS technology and various measurement tools,a systematic calculation of the deformation parameters of the landslide body is carried out to determine the deformation of the landslide body in the reservoir area and achieve landslide detection.The experimental results show that the accura-cy of the detection results of this method always remains above 95%,and it can effectively identify the deformation of the elevation position.The deformation degree of the landslide body in the reservoir area is small,and the deformation rate is slow.Currently,it is in a relatively stable state,and its danger is relatively low.
关键词
地空瞬变电磁法/滑坡体/磁感应强度/GNSS技术
Key words
ground to air transient electromagnetic method/landslide mass/magnetic induction intensity/GNSS technology
维普
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