The problem and its connection with scientific and practical tasks. The work theme coincides with the project program "TACIS" introduced in Ukraine, concerning increase of combustivelubricating materials efficiency use. This project has the purpose to help Ukrainian government to develop and introduce power saving technologies into motor transport and to reduce requirements for combustive-lubricating materials. Relative density of transportation costs in overall specific expenses of mining operations at pit depth of 50 - 70 m makes 35 - 40 %, and at depth of 50 - 65 % - 250 - 300 m. Still the bigger cost transportation expenses will have in pits with project depth of 650 - 700 m. Thus transportation can expenses up grow to 70 % from the overall expenses on mining operations.

 Наукова періодика України 

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