恒昇煤业9304机巷支护参数优化研究*王帅茗1，邱鹏2，李玉龙1，董浩然1，徐明初3（1.中国矿业大学（北京）力学与建筑工程学院，北京100083；2.太原理工大学原位改性采矿教育部重点实验室，太原030024；3.安徽省皖北煤电集团临汾天煜恒昇煤业有限责任公司，山西临汾041000）摘要：为解决恒昇煤业因支护设计不合理而造成支护材料浪费，巷道掘进速度慢的问题，以恒昇煤业9304机巷为工程背景展开研究。结合矿井地质条件，采用悬吊理论计算了锚杆索间排距的取值范围。对比计算结果，提出了3种优化方案。利用FLAC3D软件，从巷道水平位移、竖向位移和塑性区分布3个方面进行模拟分析，最终确定了最优方案。于9304机巷进行了现场试验，结果表明：优化方案围岩控制效果好，可以实现矿井的降本增效。关键词：支护优化；悬吊理论；FLAC3D；降本增效中图分类号：TD353文献标志码：A文章编号：1008－8725（2023）03－022－05StudyonOptimizationof9304RoadwaySupportParametersinHengshengCoalIndustryWANGShuaiming1,QIUPeng2,LIYulong1,DONGHaoran1,XUMingchu3(1.SchoolofMechanicsandCivilEngineering,ChinaUniversityofMiningandTechnology-Beijing,Beijing100083,China;2.KeyLaboratoryofIn-situProperty-improvingMiningofMinistryofEducation,TaiyuanUniversityofTechnology,Taiyuan030024,China;3.LinfenTianyuHengshengCoalIndustry,AnhuiWanbeiCoal-ElectricityGroup,Linfen041000,China)Abstract：InordertosolvetheproblemofwasteofsupportmaterialsandslowroadwayexcavationspeedcausedbyunreasonablesupportdesigninHengshengcoalindustry,theengineeringbackgroundof9304roadwayinHengshengcoalindustryisstudied.Combinedwiththegeologicalconditionsofthemine,thevaluerangeofrowspacingbetweenanchorboltsandcablesiscalculatedbyusingthesuspensiontheory.Comparingthecalculationresults,threeoptimizationschemesareproposed.UsingFLAC3Dsoftware,thesimulationanalysisiscarriedoutfromthreeaspectsofroadwayhorizontaldisplacement,verticaldisplacementandplasticzonedistribution,andtheoptimalschemeisfinallydetermined.Thefieldtestiscarriedoutin9304roadway.Theresultsshowthattheoptimizedschemehasgoodsurroundingrockcontroleffectandcanreducethecostandincreasetheefficiencyofthemine.Keywords:supportoptimization;suspensio...
