Method for preliminary evaluation of state of mine workings after severe accidents at which one permanently measures concentration of burning gases in different points of mine workings, according to utility model concentration of burning gases is measured after accident as well, one compares values of concentration of gases in given points before and after accident, with determination of coefficients of linear correlation between respective values of gases before Rand after R, ... Ror each following explosion, with comparison of those, and on basis of comparison one makes conclusion on controlled section between given points.
展开▼
