Application of Unmanned Aerial Vehicle Aerial Photogrammetry Technology in Earthwork MeasurementA Case Study of a Power Plant Construction in Lingang,Shanghai
Earthwork measurement is an integral part of engineering surveying.Traditional methods of earthwork measurement,primarily employing total stations,GPS-RTK,etc.,suffer from low efficiency and high costs,failing to meet the requirements of modern engineering construction for informatization,efficiency,and cost-effectiveness.This study takes the construction of a power plant in Lingang,Shanghai as a case study and applies UAV aerial survey technology to earthwork measurement.Two-dimensional images collected by the UAV undergo image processing to generate a three-dimensional model.Point cloud files are extracted from the three-dimensional model,and the point cloud is thinned out.Subsequently,Cass9.1 software is utilized to calculate the earthwork volume.The calcaulated earthwork volume is then compared with the earthwork volume measured by GPS-RTK to obtain measurement results that comply with engineering surveying standards.
Earthwork measurementUAV aerial surveyStereo mappingThree-dimensional model
NETL
NSTL
万方数据
