ANALYSIS of the VOLUME COMPARATION of 3'S (TS, GNSS and TLS)

Recently, technological developments in the field of surveys and mapping are growing very rapidly such as total station, navigation satellite (Global Navigation Satellite System), drones and laser scanners. One application of this technology is to measure a stockpile area quickly and accurately. This research will measure two stockpiles (coal warehouses) using total station (TS), GNSS and terrestrial laser scanner (TLS). This research will compare the results of volume calculations with the data generated by 3'S (TS, GNSS and TLS). Research is conducted at Coal Yard PT. Barkalin Surabaya in Benowo District, Surabaya, East City with geographically located at 112^°39'11'' E and 7^°07'13'' S. The first step is to make 3D model of Laser Scanner data by TLS Faro 3D 120 and to do regristrastion and filltering using Faro Scene. After that the data export to be 3D model from Faro Scene format to Recap 2016 (.rcp) to present and get coordinates. The next step is to compare the coordinates from TLS, TS and GNSS RTK. Finally, the accuracy of volume calculation from TS and GNSS RTK can be compared to TLS. The volume differences between TS and TLS data are-7.31 m³ (-0.45%) for the 1location and-6.89 m³ (-0.24%) for the 2^nd location. While the volume differences between GNSS RTK and TLS are-10.34 m³ (-0.63%) and-9.05 m³ (-0.31%) for the 1location and the 2^nd location respectively. Generally, the volume differences between TLS, TS and GNSS RTK are not significant. Therefore, 3'S can be used to measure a volume of stockpile.