Research on Mechanism and Control of Roadway Floor Heave in Panyidong Coal Mine

Floor heave is one of the key factors hindering the safety production of deep mines.Based on the mechanics analysis of damaged rock beam,the main influence factors of floor heave are analyzed.Aiming to those,the system control method of floor heave has been proposed.Combined with specific geological conditions of Panyidong coal mine,the reasonable supporting parameters is determined by numerical simulation.