DEVELOPMENT OF MONITORING TECHNOLOGY FOR A DREDGED SOIL DISPOSAL SITE USING UAV

Abstract

 This study summarizes the findings of an experiment that examined the application of UAV equipped with a scanner that emits green laser light to monitoring during construction at a dredged soil disposal site. The experiment showed that while increasing the sensitivity of the laser light improves the bathymetry capability of the green laser light, lowering the flight altitude leads to a decrease in bathymetry capability and surveying accuracy due to the effects of noise. It also revealed that by conducting surveys on a high-density route using UAV that can navigate for long periods of time, it is possible to prevent data loss in shallow areas and further improve bathymetry capability. Using the results of surveys using a UAV based on these findings, we were able to demonstrate how 3D data can be used in construction management at a tidal flat creation site.