Coal Roadway Deformation Mechanism and Its Control Method in Xiegou Coal Mine

On the basis of the surrounding rock geological data exposed in early coal lane tunneling process,aiming at the problems of abscission layer and rib spalling during tunneling and maintenance process,the surrounding rock deformation mechanism of early coal roadway was studied deeply,the tunneling construction techniques of coal lane and combined support form were analyzed,and the new supporting program was analyzed by numerical simulation.Finally,the rationality of new support parameters were verified by project,which provided valuable experience for the future roadway combined support.