Sediment volume estimation using LiDAR data at construction sites

Abstract

At construction sites, it is necessary to accurately manage the amount of sediment generated for the effective use of resources. In this study, we proposed a method to estimate the volume of sediment from three-dimensional point cloud data measured using LiDAR, focusing on the sediment loaded in the back of a dump truck during sediment transport, for the purpose of simple sediment volume estimation. First, the characteristics of the LiDAR data were demonstrated through measurements at a construction site. Next, to estimate the volume of sediment in the bed of a dump truck from the three-dimensional point cloud data, the three-dimensional point cloud data of multiple dump trucks were cut into only the dump trucks, meshed, and the volume was calculated. We calculated the sediment volume using the obelisk formula to evaluate the validity of the estimated volume values.