Abstract
Static satellite surveying techniques are commonly used for the geodetic monitoring of mining areas, especially to determine horizontal coordinates of points. Satellite surveys are currently being connected to permanently established reference stations. In many countries, two or more reference networks work independently. In Poland, there are four nationwide networks of reference stations and one regional network. All commercial networks must be tied to the national network ASG-EUPOS. This research paper has analysed the influence of tying the points used for mining area monitoring purposes to various reference networks on their adjusted coordinates. The author has attempted to process the results of these satellite surveys at the engineering level, most frequently encountered in the field of surveying. The computation has been carried out using commercial software. Static observations from four reference networks operating in Poland have been used to compute the coordinates of the test points: ASG-EUPOS. NadowskiNET. TPINetPRO and VRSNet.pl. Leica Geosystems Polska has not provided access to its static satellite observations for testing purposes.
Highlights
The operation of a mining plant is largely based on the results of geodetic surveys, which are utilised to prepare the surveying-geological documentation for the mining area
The highest class is awarded to the ASG-EUPOS national network points, which was the first nationwide CORS network in Poland made available to the users in mid-2008
Having met the relevant requirements and having been accepted into the National Geodetic and Cartographic Documentation Resource, the reference stations of the commercial networks are classified as the second-order geodetic control, as their coordinates have been determined by tying to the reference stations of the ASG-EUPOS network
Summary
The operation of a mining plant is largely based on the results of geodetic surveys, which are utilised to prepare the surveying-geological documentation for the mining area. Update and supplement this documentation, land surveys and various geological works are carried out, including measurement, computation and cartographic activities. Static satellite surveys are currently the basis for determining the coordinates of the geodetic control points, as they allow to obtain high and homogeneous accuracy of the coordinates of the network points. This is a great advantage for extensive survey areas, with no aiming direction between the neighbouring points, and for linear objects, for which an alternative is a traverse with a great propagation of errors. The analyses and conclusions have been presented based on the satellite observations recorded in five surveys carried out with four GNSS receivers on five points of the test control network located in the area which is free from the environmental impact of mining
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