Research on the final mining technology for gob-side entry retaining of the 31117 comprehensive mining face in Jinjie Coal Mine
Taking the final mining of the 31117 gob-side entry retaining comprehensive mining face in Jinjie Coal Mine as the actual background,the geological conditions of the goaf retaining roadway working face are analyzed,and the support schemes for the retreat channel,auxiliary roadway,and connecting roadway are determined.Through methods like fire prevention and extinguishing prediction,pipe monitoring,working face and surface leak prevention,and mining pressure analysis,safety technical measures for the final mining period are formulated.At the same time,the development of the final mining breakthrough plan is carried out to ensure the safety of the comprehensive mining face during the final mining period by practical means such as shutdown determination,hanging net technology,rope walking,and breakthrough coal cutting along the goaf.
gob-side entry retainingconnecting roadwaysecurity technical measuresconnection plan
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