Kharin S. Scientific basis development of deep iron ore shaft sinking designing

The research deals with the organizational and technological base development of deep iron ore shaft sinking designing in order to ensure their continuous effective functioning under reconstruction conditions. The operational productivity dependences of blasthole drilling, refuse disposal and excavation support means for vertical shafts and extended drifts were found, they being the factors ensuring in their combination certain driving rates in order to meet the reconstruction scheduled time in case of the second opening stage. The dependences characterizing horizon construction of the second opening stage in case of different number of operation directions were found. With the help of the developed model and computer programme some rate combinations of sinking a complex of different drives of the second opening stage were obtained ensuring a certain time period of constructing such horizons and operational productivity of drilling, loading and excavation support means and enabling to minimize the driving equipment operating costs. On the basis of the research a complex of management methods concerning the organizational and technological parameters of deep shaft sinking in case of stepline opening was developed.