Research on the Comprehensive Mining Technology of Working Face
In order to further improve the production capacity and efficiency of the fully mechanized mining face,taking the 21051 fully mechanized mining face as an example,based on a comprehensive analysis of its basic and geological conditions,it is determined to adopt the top coal caving mining technology for mining.Then,based on PFC2D software,the extraction rate and gangue content corresponding to the two mining process parameters of directional longwall caving and inclined longwall caving were compared,and the optimal coal extraction process parameters under the corresponding mining methods were obtained.The research results can guide the actual production of the working face.
inclined longwall top coal cavingtowards longwall top coal cavingcoal release step distancemining heightgangue contentextraction rate
NETL
NSTL
万方数据
