| 摘要 |
In a method for raise driving the driving work is performed from equipment that is movable along a guide rail applied on the wall of the raise, said guide rail being lengthened as the work proceeds. The equipment includes a drill rig (67) by means of which blasting holes are drilled in the upper end face of the raise, and a platform, from which staff can perform manual work such as loading of the blast holes. A round cycle that includes the total time after blasting of a round up to blasting of the next round, comprises according to one alternative in turn only simultaneous drilling and ventilation, guide rail lengthening followed by loading, and blasting. Another alternative, intended for use in poor rock, deviates from the first alternative in that the drilling is preceded by ventilation and rock reinforcement. |
