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Contents of Operation Regulations for Coal Mining Face-Geological Description
Release time:
2022-12-12
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Contents of Operation Regulations for Coal Mining Face-Geological Description
Geological Specification
According to the geological survey data of the coal mining face provided by the geological survey department, combined with the mining exposure and palm.The geological conditions of the coal seam are briefly described.
(1) Nature of coal seam. Occurrence factors and occurrence characteristics of coal seam, Platts coefficient of coal body, solid density of coal bodydegree, loose body apparent density, intrinsic ash, volatiles, heat, sulfur, phosphorus, and coal.Industrial classification, etc.
(2) Surrounding rock properties. Rock properties, thickness, basic characteristics and class division of working face roof and floor.
(3) Geological structure characteristics. Fault location and occurrence factors within the mining range that have a greater impact on mining,The location characteristics of the main fold structure, igneous rock intrusions and the degree of influence on mining.
(4) Gas, coal dust and coal spontaneous fire. The pressure and emission of coal seam gas in the working face,Coal dust explosion risk, coal spontaneous combustion tendency, spontaneous combustion period, etc.
(5) Hydrogeological conditions. Normal water inflow and maximum water inflow of working face during mining.
(6) Coal reserves in working face. Industrial reserves and recoverable reserves of coal seams within the mining area of the working face.The expected mining period of the surface, etc.
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