Study of the relationship of tidal changes in gravity with the time of mining tremors in the area of the mining longwall in a coal mine – case study in USCB, Poland

Deep mining of coal deposits in Upper Silesia Coal Basin Poland over several hundred years has led to disturbances the natural state equilibrium. As a result changes stress distribution, mass distribution (changes gravity forces) and deformation rock mass, seismic tremors with energy reaching up 10E+09J are generated. In this paper, time occurrence is linked gravitational load caused by litosphere tides, which considered be one factors leading tremors. The analysis used data on immediate vicinity longwall VIII E-E1 seam 703/1 located north-eastern part Rydułtowy I area, whose user PGG S.A. KWK ROW Rydułtowy. These was compared recorded gPhoneX-155 tidal gravimeter measures acceleration. Gravimeter installed stand Industrial Cultural Center Mine Ignacy Rybnik-Niewiadom, within few meters E-E1. results obtained paper indicate relationship between known as lithosphere tides mining-induced At same time, no periodicity found catalog allowing link them directly tides.