The main features of the development of Open-complex structure of carbonate rocks. The dependence for the determination of dozing on the domestic heap career, moving overburden on bestransportnoy scheme in goaf. Found that the optimum length of excavator block executed by one parking dragline at quarries carbonate rocks is achieved with the minimum total cost of doing the work of overburden and waste associated with the removal of the overburden.
Variants of technological schemes of aggregates production by open-cast mine with mobile crushing and grading units is described. The measures to improve safety in open-cast mining are offered, and also ways to increase productivity of open-cast mines by changing the technological schemes and reducing the number of movements of mobile crushing and screening units.
The work describes basic features of open pit development of complex structure carbon deposits. The rational length of excavator block for different models of dragline for backfill mining method was determined. The work also gives the dependence for determining the production front length for development of complex structure carbon deposits with the use of railway service for transportation of the extracted mineral.