超前锚杆支护在破碎带软岩巷道中的应用

超前锚杆支护在破碎带软岩巷道中的应用2015年第1期中州煤炭总第229期超前锚杆支护在破碎带软岩巷道中的应用任大帅(金诚信矿业管理股份有限公司，北京101500)摘要：随着巷道埋深的增加，巷道围岩也显现出软岩的特性，巷道支护难度相应增大。针对大兴安岭岔路口钼矿混合井一90m水平大件运输道的工程条件，采用安全合理的施工顺序和超前锚杆+钢拱架网喷的联合支护方式对围岩进行维护，取得了良好的支护效果，实现了矿井的安全生产。关键词：超前锚杆；钢拱架喷射混凝土；破碎段；软岩巷道支护中图分类号：TD353文献标志码：A文章编号：1003—0506(2015)O1—0028—03ApplicationofAdvancedBoltSupportinginSoftRockRoadwayinFractureZoneRenDashuai(JinchengxinMineIndustryManagementCo．，Ltd．，BeUing101500，China)Abstract：Withtheincreasingoftheroadwaydepth，somesurroundingrockalsoshowseveralcharacteristicsofsoftrock，andtheroad—waysupportingbecomedifficultaccordingly．Aimingatthecomplexengineeringconditionofthe一90mlevellargetransportroadwayinChalukouMolybdenumMineinGreaterHiggnanMountains，asafeandreasonableconstructionsequencewasproposed，thecombinedsupposingmethodwiththeadvanCedboltandsteelarchsprayedconcretewasalsoadopted，whichhasobtainedagoodsupposingeffect，andhasrealizedthesafetyproductionofcoalmine．Keywords：advancedbolt；steelarchsprayedconcrete；fracturezone；softrockroadwaysuppo