Electrical Prospecting to Detect Place of Spontaneous Heating in Olzherasskaya-Novaya Coal Mine: Case Study
KHI UN LEE, S. V. CHERDANTSEV, V. B. POPOV, P. A. SHLAPAKOV, A. YU. ERASTOV
VostNII Research Center for Mining Safety, ul. Institutskaya 3, Kemerovo, 650002 Russia
Keywords: угольные пласты, горные выработки, выработанное пространство, очаги самонагревания угля, эндогенные пожары, газоаналитический метод, шахтная электроразведка, метод экваториально-дипольного электропросвечивания, интерпретационный критерий, coal beds, mine roadways, mined-out void, coal self-heating places, endogenous fire, gas analysis method, mine electrical prospecting, equatorial dipole sounding, interpretation criterion
Abstract
Geophysical methods of detecting places of spontaneous heating in mined-out voids in gently dipping and inclined coal bed in Kuzbass mines are reviewed. The emphasis is laid on the method of equatorial dipole sounding used to determined temperature of coal in the place of spontaneous heating in Olzherasskaya Novaya Mine. The cooling time of the coal and rock nest down to the temperature of surrounding rock mass is estimated, and the self-heating seat suppression actions are proposed.
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