第51卷第1期有色金属设计Vol.51No.12024年3月NonferrousMetalsDesignMar.2024收稿日期:2023-06-12作者简介:罗春生(1991—),男,重庆万州人,工程师。主要研究方向:金属非金属矿山开采方法与岩石力学。山坡地形下倾斜矿体开采参数研究罗春生(紫金<厦门>工程设计有限公司,福建厦门410006)摘要:分析西南地区某铜矿地下开采过程中采场的稳定性以及对上部覆岩深度的影响,对上向水平进路式充填采矿法分段分层依次开挖进行了稳定性的模拟分析,分析论证矿柱参数、覆岩深度、开采方案对其影响。针对山坡地形下倾斜矿体,建立山坡矿体相交和平行的模型,通过数值模型研究不同开采方法、矿柱参数下的围岩状态。研究结论表明矿山压力随着开采上覆围岩厚度、矿体厚度的增加而显现。矿区东部厚、中厚矿体回采宜在中深部矿体采用8m矿柱、浅部矿体采用6m矿柱;矿区中部薄矿体和矿区西部薄矿体回采合理矿柱尺寸为4m。通过采矿方法对比分析,空场法存在较大安全隐患;厚矿体采用上向水平充填法相对于宽进路上向水平充填法安全稳定性大幅降低。关键词:矿柱尺寸;倾斜矿体;上向进路充填采矿法中图分类号:TD853.362文献标识码:A文章编号:1004-2660(2024)01-0021-05AStudyonMiningParametersofInclinedOrebodyUnderHillsideTerrainLUOChunsheng(ZijinEngineeringDesignCo.,Ltd.,XiamenFujian410006,China)Abstract:Thestabilityofthestopeduringundergroundminingofacoppermineinthesouthwesternregionandtheimpactonthedepthoftheoverlyingrockswereanalyzed.Asimulationanalysisofthestabilitywasconductedforthestage-wiseandlayer-wiseexcavationintheupwardhorizontalaccessfillingminingmethod.Theanalysisdemonstratedtheinfluenceofminingpillarparameters,overburdendepth,andminingscheme.Toenhancetheunderstandingofinclinedorebodiessituatedinmountainslopeterrains,modelsthatintersectandrunparalleltotheslope’sorebodyconfigurationweredeveloped.Byemployingthesenumericalmodels,anin-depthanalysiswasconductedoftherockmassconditionsassociatedwithvariousminingtechniquesandpillardesigns.Thecon-clusionsindicatethatminingpressurebecomesapparentwiththeincreaseinminingthicknessoftheoverlyingrockandorebody.Intheeasternpartofthemine,wheretheorebodiesarethicktomoderatelythick,an8mminingpillarissuitableformedium-deeporebodies,a...
