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http://dx.doi.org/10.5762/KAIS.2019.20.1.323

Application of Terrestrial LiDAR for Displacement Detecting on Risk Slope  

Lee, Keun-Wang (Department of the Multimedia Science, Chungwoon University)
Park, Joon-Kyu (Department of Civil Engineering, Seoil University)
Publication Information
Journal of the Korea Academia-Industrial cooperation Society / v.20, no.1, 2019 , pp. 323-328 More about this Journal
Abstract
In order to construct 3D geospatial information about the terrain, current measurement using a total station, remote sensing, GNSS(Global Navigation Satellite System) have been used. However, ground survey and GNSS survey have time and economic disadvantages because they have to be surveyed directly in the field. In case of using aerial photographs and satellite images, these methods have the disadvantage that it is difficult to obtain the three-dimensional shape of the terrain. The terrestrial LiDAR can acquire 3D information of X, Y, Z coordinate and shape obtained by scanning innumerable laser pulses at densely spaced intervals on the surface of the object to be observed at high density, and the processing can also be automated. In this study, terrestrial LiDAR was used to analyze slope displacement. Study area slopes were selected and data were acquired using LiDAR in 2016 and 2017. Data processing has been used to generate slope cross section and slope data, and the overlay analysis of the generated data identifies slope displacements within 0.1 m and suggests the possibility of using slope LiDAR on land to manage slopes. If periodic data acquisition and analysis is performed in the future, the method using the terrestrial lidar will contribute to effective risk slope management.
Keywords
Geospatial Information; Light Detection And Ranging; Mesh; Pointcloud; Slope Displacement;
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Times Cited By KSCI : 6  (Citation Analysis)
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