大倾角工作面快速过老巷群技术研究  

Study on Technology of Large Dip Angle Mining Face Fastly Passing Old Roadway Group

作　　者：侯晓松 

机构地区：[1]枣庄矿业集团高庄煤业有限公司,山东济宁277605

出　　处：《煤炭技术》2018年第1期54-57,共4页Coal Technology

摘　　要：针对高庄煤矿3上301工作面回采过程中面临的过老巷群问题,运用FLAC3D模拟了工作面超前支承压力影响下老巷群覆岩应力分布规律,当工作面推进距老巷30 m时,工作面超前支承压力和老巷自身应力影响范围叠加,应力明显增大。优化老巷群的支护参数,确定了"木垛+锚索网"补强支护方式,以及单体支柱超前加固方案,保证了工作面生产期间老巷围岩稳定,实现了工作面安全快速通过老巷群。3up301 mining face in Gaozhuang coal mine would pass old roadways in mining process. Stress distribution in overlying strata of old1 roadways affected by advanced abutment pressure of mining face was simulated by FLAC3D, 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.

关 键 词：大倾角 老巷群 补强支护 超前加固 

分 类 号：TD823[矿业工程—煤矿开采]