Influence of Coal Mine Comprehensive Mining Height on Coal and Rock Movement
In the process of mining thick coal seams,different mining heights have a significant impact on the movement of coal and rock,thereby affecting the quality of coal mining.Using PFC 2D simulation software,the movement process of coal and rock at different mining heights was simulated and analyzed.The results showed that when the mining height was 3 m,the coal and rock could fully flow,and the coal extraction rate was the highest and the gangue content was the lowest.
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