Road longitudinal slope influence on the efficiency of excavator-automobile complexes usage

At present, the country's coal industry pays special attention to open-pit mining, because of its higher efficiency and profitability. According various surveys, currently share mining is 50 - 65%, it will increase 80 85% in future. The development an accompanied by production scale increase, open pits depth increases complexity conditions main technological equipment operation increases. With depth, road transport becomes most problematic issue since enlargement distance transportation roads longitudinal slopes these factors reduce excavator-automobile complexes.