SEGJ Technical Conference


Application of landslide survey by using Drone Airborne TEM


Abstract
In recent years, an airborne electromagnetic (AEM) system using a drone was developed. This paper aims at verifying the application of drones to the land-slide survey, the drone airborne electromagnetic exploration was performed at a field in which some landslide deformations have been confirmed in Tanabe city of Wakayama prefecture. D-GREATEM is a method used for verification. In this method, a bipole-source is set-up on the ground, a receiver is attached to the drone which is able to measure the electromagnetic wave in midair. The resistivity structure of the ground is calculated by the response of electromagnetic waves. In this study, we have compared existing geological data and the resistivity structure which were analyzed by the D-GREATEM and considered applying for a landslide survey. Our results revealed that using a drone airborne electromagnetic exploration is able to show the resistivity structure of the survey area in 3D rapidly. Moreover, it was confirmed that the resistivity structure and the landslide blocks which were confirmed by the conventional survey method had a good consistency.