Abstract:

Abstract: Da-tong Mine material roadway encountered difficulties of rock stress concentration, poor stability , roadway construction and security threats ,because through goaf roadway (In other wordsroadside is only small mine destroyed zone). Through theoretical analysis, field sampling laboratory parameters measured, program design, expert consultation, presented a support using anchor net shotcrete method using secondary support miners, steel reinforced concrete sidewall + Roof Beam secondary support on the roof separation monitoring results show that the anchoring methods and parameters can effectively control anchoring rock deformation. during excavation

Key words: Key words：small mine destroyed zone, goaf roadway, anchorage parameter, secondary support