Andrzej Krowiak

Mathematical model for the calculation of the mass of coal and waste rock obtained from exploitation workings under different longwall advances

Method of setting the resultant cutting powers on the head plane coal on the basis of measurements of mechanical parameters of coal

Determination of optimal use of hydromechanical method of coal mining using plane in various geological-mining conditions

General method for determining the economic efficiency of mining projects differing in size of investment in technical equipment of mine workings as well as in work progress