超千米深井软岩巷道支护数值模拟研究

超千米深井软岩巷道支护数值模拟研究江西煤炭科技JIANGXICOALSCIENCE&TECHNOLOGY2013年第4期No．42013超千米深井软岩巷道支护数值模拟研究郑琳(冀中能源峰峰集团万年矿技术科，河北峰峰054000)摘要：分析目前软岩巷道支护现状，并对软岩巷道的特征和软岩巷道支护困难原因进行总结；根据某矿轨道下山围岩条件，设计出合理支护方案，利用FLAC3D数值模拟软件进行模拟验证，并在轨道下山中进行工业性试验，通过观测，巷道整体变形大大减小，底鼓比原支护平均减少450ITlrrl，满足矿井的生产需求。关键词：软岩巷道；数值模拟；底鼓中图分类号：TD350文献标识码：A文章编号：1006—2572(2013)04--0081--03StudyonNumericalSimulationofSoftRockRoadwayinKilometerDeepShaftZhengLin(TechniqueDept．，WannianColliery，JizhongEnergyFengfengGroupCo．，Ltd．，Fengfeng，Hebei056200)Abstract：Thepaperanalyzesthepresentsupportingsituationofsoftrockroadwayandsumsupthecharacteris—tiesandthecausesfordifficultsupportingofsoftrockroadway．Accordingtosurroundingconditionsoftrackdownhillinsomemine，areasonablesupportingschemehasbeendesigned．UsingFLA3Dnumericalsimulationsoftwaretotestandverify，industrialtesthasbeentakenintheorbitwinze．Thetestshowsthattheroadwaydeformationdecreasesandfloorheavedecreases450mmcomparedwithoriginalsupport，whichcanmeettheproductionneedofcoalmine．Keyword：softrockroadwa