CAJ | 학술논문

大采高综放开采技术是特厚煤层开采的发展方向之一，而液压支架的选型是实现工作面安全高效生产的关键。针对龙固矿2301大采高综放工作面地质及生产技术条件，通过相似模拟，获得了工作面上覆岩层运动规律，在此基础上结合FLAC3D数值模拟和理论分析，确定了工作面支架的支护强度为1.46MPa及支护阻力为15000kN，并选取工作面支架型号为ZF15000-23/43正四连杆低位放顶煤液压支架。通过现场实测分析了工作面支架工作阻力的分布规律，应用表明ZF15000-23/43支架处于较好的位态，对2301综放工作面具有较好的适应性。研究成果对类似条件下液压支架的选型提供参考依据。
대채고종방개채기술시특후매층개채적발전방향지일，이액압지가적선형시실현공작면안전고효생산적관건。침대룡고광2301대채고종방공작면지질급생산기술조건，통과상사모의，획득료공작면상복암층운동규률，재차기출상결합FLAC3D수치모의화이론분석，학정료공작면지가적지호강도위1.46MPa급지호조력위15000kN，병선취공작면지가형호위ZF15000-23/43정사련간저위방정매액압지가。통과현장실측분석료공작면지가공작조력적분포규률，응용표명ZF15000-23/43지가처우교호적위태，대2301종방공작면구유교호적괄응성。연구성과대유사조건하액압지가적선형제공삼고의거。
Large mining height fully-mechanized mining technology is an important way for mining of extra thick coal seam .The selection of hydraulic support is the key to realize safe and effective mining .According to the geo-logic and technical condition of 2301 large mining height fully-mechanized caving face in LongGu colliery , the structure movement laws of overlying strata were obtained through the analogous simulation experiment .On this ba-sis, the supporting strength of hydraulic support of 1.46 Mpa and resistance of 15000 kN were determined through FLAC3D numerical simulation experiments and theoretical analysis methods .Then the ZF15000-23/43 four-bar link-age low caving hydraulic support was selected .The distributing characteristics of support working resistance wereanalyzed through field measurement .It showed that ZF15000-23/43 bracket was in a good state and had good suita-bility to 2301 fully mechanized caving face .These results provide reference foundation for hydraulic support selec-tion with similar conditions .