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《Coal Technology》 2018-01
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Study on Technology of Large Dip Angle Mining Face Fastly Passing Old Roadway Group

HOU Xiao-song;Gaozhuang Coal Mining Company Limited,Zaozhuang Mining Group;  
3_(up)301 mining face in Gaozhuang coal mine would pass old roadways in mining process.Stress distribution in overlying strata of old roadways affected by advanced abutment pressure of mining face was simulated by FLAC~(3D),stress increasing significantly when the distance between mining face and old roadway reached 30 m.Support parameters were optimized and combined reinforcement of"wood cribs and cables and nets" and advanced individual props was determined.Stability of surrounding rock was controlled and mining face passed the old roadway group fast and safely.
【CateGory Index】: TD823
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