This work is achieved in the town Viseu de Sus, Maramures County, D.N. 18 Following discussions we had with a view to this land survey of calculus of an excavated volume, we proceeded to verify the land and choose the best solution from practical and economical point of view After consulting the National Mapping Center site and seeing the VISE_2.3 permanent GPS station from Viseu de Sus in functional state, we chose the measurements alternative using of a GPS, module RTK . The land surveys for volume calculation were made with the GPS equipment, Hi-Target V30 model, a top brand in China and the rest of the Asian countries. The ratio between price and quality is very good. This GPS model is used for RTK module measurements or in static mode. It is very resistant to water, dust and shocks caused by blows. The material used to construct the GPS antenna carcass is made of a very durable material, however the manufacturer recommends prudence, this being about a precise measuring device. The elevation angle recommended by the manufacturer is at least 15 degrees to reduce errors caused by satellites at the horizon line. At the same time high buildings, water basins, TV antennas, mobile telephones or high voltage power lines can affect the functionality of the device. The land survey is considering settlement of related amounts, following the excavation and decontamination works of the land which hosted a fuel station. The measurements were made with the Hi-Target V30 GPS in RTK mode, after which they were exported and processed with TopoLT version 11.2 and AutoCad Map 2012. Coordinates exported following the measurements were in STEREO'70 because this GPS has installed the TRANSDATRO software. In this way, the coordinates are obtained directly in the stereographic projection system in a secant plane. With the two programs you can work much faster to report points and model them. In order to create the 3D model we used reporting from the TopoLT introduction software of the coordinates obtained.

GPS, TopoLT, Autocad Map, RTK, TransDatRo

environmental engineering

Presentation: poster