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HORIZON-ORIENTED METHOD OF PREPARATION OF SHALLOW AND MEDIUM MINE BEDS WITH DEVELOPMENT OF UPWALLS OR DOWNWALLS DEPENDING ON MINING-AND-GEOLOGICAL AND MINE ENGINEERING FACTORS
HORIZON-ORIENTED METHOD OF PREPARATION OF SHALLOW AND MEDIUM MINE BEDS WITH DEVELOPMENT OF UPWALLS OR DOWNWALLS DEPENDING ON MINING-AND-GEOLOGICAL AND MINE ENGINEERING FACTORS
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机译:取决于矿山,地质和矿山工程因素的上,下水道发育的浅层和中层矿床制备方法
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摘要
FIELD: mining.;SUBSTANCE: method involves preparation of existing and new horizons, development of longwall face columns as per the specified technological angles in compliance with mining-and-geological and mine engineering factors, including flooded fields. For mine beds with alternate position angles of 0 to 35°, developments adjacent to longwall face and with alternate upward or downward angles pass along non-straightline route or non-straightline route in combination with straight-line route so that their upward or downward angle did not exceed the specified technological angle. Installation chambers of cleaning complexes at advance of longwall faces with zero and alternating-sign bed position angles shall be located at the distance prior to mounting of the main roofs with inevitable water influx from the overlying water-bearing beds so that stable upward angle of beds at each point throughout the length of longwall faces was at least 2°.;EFFECT: increasing coal extraction and simplifying transportation of people, delivery of materials and equipment at elongation of extraction pillars.;1 dwg
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