Calculation of Subsidence for Room and Pillar and Longwall Panels

A European method of surface subsidence calculation for partial room and pillar and longwall panel mining of coal deposit is presented. The article focuses on the Knothe’ method, that describes the subsidence trough by the Gauss influence function method. This method provides calculation of tilt, curvature radius, horizontal and vertical movements, and horizontal strain of the surface subsidence trough. The method to forecast surface subsidence serves to design exploitation with respect to minimalisation of its influence so that the forecast subsidence should not exceed a limit value.