Faculty of Mining Surveying and Environmental Engineering

Satellite Radar Interferometry is a unique method making it possible to investigate land subsidence in precisely specified time and within exactly the same period of time, on the area of tens of thousands square kilometres simultaneously. So far in Poland, the abovementioned method has been used on the underground coal mining excavation areas in the Upper Silesian Coal Region and on the underground copper excavation areas in the Legnicko-Głogowski Copper Region. The research has given information about the land subsidence, about its location, range and size.In other countries the method is mainly used to observe vertical terrain motions caused by underground water and oil exploitation. The paper presents the discussion on the application of the method in the research into the terrain deformation caused by drainage of rock mass.

In this article, topics regarding the technical and legal aspects of creating digital underground mining maps are described. Currently used technologies and solutions for creating, storing and making digital maps accessible are described in the context of the Polish mining industry. Also, some problems with the use of these technologies are identified and described. One of the identified problems is the need to expand the range of mining map data provided by survey departments to other mining departments, such as ventilation maintenance or geological maintenance. Three solutions are proposed and analyzed, and one is chosen for further analysis. The analysis concerns data storage and making survey data accessible not only from paper documentation, but also directly from computer systems. Based on enrichment data, new processing procedures are proposed for a new way of presenting information that allows the preparation of new cartographic representations (symbols) of data with regard ...

The Satellite Radar Interferometry is one of the common methods that allow to measure the land subsidence caused by the underground black coal excavation. The interferometry images processed from the repeat-pass Synthetic Aperture Radar (SAR) systems give the spatial image of the terrain subjected to the surface subsidence over mining areas. Until now, the InSAR methods using data from the SAR Systems like ERS-1/ERS-2 and Envisat-1 were limited to a repeat-pass cycle of 35-day only. Recently, the ESA launched Sentinel-1A and 1B, and together they can provide the InSAR coverage in a 6-day repeat cycle. The studied area was the Upper Silesian Coal Basin in Poland, where the underground coal mining causes continuous subsidence of terrain surface and mining tremors (mine-induced seismicity). The main problem was with overlapping the subsidence caused by the mining exploitation with the epicentre tremors. Based on the Sentinel SAR images, research was done in regard to the correlation be...