METHODOLOGY OF CALCULATION OF FEEDING THE GASEOUS NITROGEN INTO AN ISOLATED BLIND MINE WORKING
Purpose. Development of the methodology of calculating the feeding of the gaseous nitrogen into the isolated volume of the blind mine working. Methods. Investigations of gas-dynamic processes during the filling the isolated volume of the blind mine working with the gaseous nitrogen factoring in its absorption and leaks, methane release and gas blower burning. Results. The mathematical relations have been obtained for calculation of intensity and duration of feeding the gaseous nitrogen into the isolated space of the mine working with allowance for its adsorption by the mine working surface, possible leaks through stoppings and enclosing strata fracturings, release of methane and combustible gases out of a seat of fire. Scientific novelty. The algorithm of calculation of the parameters for feeding the gaseous nitrogen into the isolated volume of the blind mine working has been suggested factoring in the probable gas-exchange processes. Practical value. The relations have been derived that make it possible to determine the parameters of the gaseous nitrogen feeding into the isolated area of the blind mine working.