P003 REFRACTION SEISMIC SURVEY TO EVALUATE THE DANGER OF GROUND SURFACE DAMAGE IN MINING AREAS 1 Abstract Extensive seismic survey was carried out over the mining area of the Katowice-Kleofas coal mine in Katowice Poland. The survey covered the area of old shallow workings which pose the risk of ground surface damage. The aims of the survey included evaluation of properties of rocks occurring beneath the Carboniferous top evaluation of the continuity of the Carboniferous top surface and evaluation of the risk of surface damage. The Carboniferous rocks are covered by Quaternary deposits: loamy sands and clays of a few


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