TIME DETERMINATION OF SPONTANEOUS HEATING PLACE IN OLZHERASSKAYA-NOVAYA COAL MINE
Dirichlet problem describing the process of temperature pattern change in the coal and rock accumulation with spontaneous heating place in Olzherasskaya-Novaya coal mine on the basis of the one-dimensional non-stationary heat conduction model is posed.
The construction method for the explicit solution to the Dirichlet problem is described. On the basis of the method, the formula used to determine the temperature of the rock and coal accumulation at any time in any location of the accumulation is obtained.
The time interval during which the temperature of the rock and coal accumulation possesses a predetermined value in the process of self-heating seat suppression is found.
Key words: BREAKAGE HEADINGS, COAL BED, COAL AND ROCK NEST, THERMAL CONDUCTIVITY EQUATION, TEMPERATURE CONDUCTIVITY COEFFICIENT, TEMPERATURE PATTERN, DIRICHLET PROBLEM, METHOD OF VARIABLE SEPARATION.