The elasto brittle plastic finite element analysis has been taken on the prediction for the deformation of the northwall of an open pit of Fushun, China. Numeri
Controllable drawing roof coal mining method is applied either to rently inclined seam or to big dipping seam. This paper sums up four corresponding methods acc
Gateway supporting in long-wall mining has been a problem that restricts the mine production and safety, the paper sets up an interaction model between support