Volume Estimation of Stockpile Using Unmanned Aerial Vehicle

At present, contractors continue to face difficulty in estimating the amount of the earthwork volume and cut and fill for the earthwork. The surveyor manually carries out detail survey which time consuming and problem occurs either come from the instrument or human error. However, Unmanned Aerial Vehicle (UAV) installed with high technology sensor offer many advantages especially for fast data collection in the require time frame. Therefore, this research focused on determining the accuracy of stockpile volume calculation using UAV. The objectives of this study are to investigate the error in field measurement and high precision volume calculation, to map the volume of the stockpile using UAV image and to calculate time taken the survey conducted. The imaging process have been carried out by using UAV, meanwhile the detail survey conducted by using Laser Scanning in order to verify and compare both method accuracy. This study has been carried out at Hup Seng Quarry, Ulu Choh. as a study area. The obtained result shows that Terrestrial Laser Scanner (TLS) method more time consuming and Digital Elevation Model (DEM) both methods were generated. As conclusion, this method able to generate contour, DEM and calculated accurate volume as the relative error is 0.002%.