Gas release mode and longwall face length in conditions of single seam development
Abstract
The Pechora Coal Research Institute has established that the mines of the Vorkutskoye field are characterized by high methane availability, which increases with the transition of mining operations to deeper horizons. However, the methane content of the mine as a whole, determined by the mining-static method, cannot characterize the value of methane emission, for example, in cleaning and preparatory faces under different mining and geological conditions. For example, gas emission within the limits of a treatment area when developing a single layer, a layer with satellites or a layer developed in two layers will be sharply different. Because outgassing at greater depths will create significant difficulties in ventilating the workings and may require special measures to control outgassing, it is necessary to have a clear understanding of the nature of outgassing under different mining and geologic conditions.
References
- Skochinsky A. A., Komarov V. B. Mine Ventilation. Ugletekhizdat, 1951.
- Lidin G. D. Nitrogen Emissions in Coal Mines and Measures to Combat Them. Ugletekhizdat, 1952.
- Bozhko V. L., Petrukhin P. M. Methane emission at work of coal combine Donbass. Coll. of MacNII, 1953, vol. 7.
- Bozhko V. L. About gas emission during blasting of boreholes. Bulletin. MacNII, 1957, No. 3.
- Osipov S. N. About the influence of face length on the gas content of the excavation area. Ugol, 1956, No. 6.
- Bozhko V. L., Osipov O. N. Influence of the longwall face movement speed on the gas content of the excavation area. Bull. MacNII, 1958, No. 9.
- Zollweg N. K. About longwall face length under ventilation conditions in deep mines. Coll.: Development of coal deposits at great depths. Ugletekhizdat, 1955.
- Korovina B. Ya. Natural gas content of the Vorkuta deposit strata. People's Economy of the Komi ASSR, 1957, No. 7.