昆明冶金高等专科学校学报
• 资源开发与矿冶工程 • 下一篇
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摘要: 为确保地表主副井的稳定,采用有限差分程序FLAC3D模拟地下矿体开采对主副井稳定性的影响。计算了矿体开采过程中地表及主副井的下沉变形量,并参照我国评判采空区场地稳定性等级标准进行评判。模拟结果表明:岩层移动是一个自下而上传递的动态过程,地下开采对上部主副井产生的下沉变形量很小,未超过 10cm的地表下沉控制标准;同时地下开采也未在主副井所处的围岩产生塑性扰动区,说明主副井处于安全稳定的状态。研究结果为地下采场的布置设计和主副井安全运行提供了指导性的依据。
关键词: 地下开采, 主副井, 稳定性, 采空区场地稳定性评价标准, 下沉变形
Abstract: Toensurethesafetyofthemainandauxiliarymineshafts,thepaperanalyzedtheinfluenceofundergroundminingonthemainandauxiliarymineshaftthroughFLAC3Dsimulation.Subsidencedeformationofsurfaceandmineshaftinprocessofdepositbodyexploitationwerecalculated,andjudgementweremadeaccordingtothegradeevaluationcriteriaforstabilityofgoafsiteinChina.Simulationresultsshowthatstratamovementisadynamicprocessoftransferfrombottomtotop,andsubsidencedeformationofmainandauxiliarymineshaftisverysmall,andthecontrolstandardofsurfacesubsidenceislessthan10cm.Atthesametimethesurfaceandmineshaftdonotproducetheplasticdistrbedzone,whichillustratesthemineshaftisinastablestate.Theresearchresultsprovidetheguidingbasisforstopedesignandsafeoperationofmainandauxiliarymineshaft.
Key words: undergroundmining, mainandauxiliarymineshaft, stability, evaluationcriteriaofstabilityingoafsite, subsidencedeformation
中图分类号:
TD853.392
费志文,吴 东,杨 泽,童志鹏. 因民铜矿大水沟矿段地下开采对主副竖井的稳定性影响分析[J]. 昆明冶金高等专科学校学报, DOI: doi:10.3969/j.issn.1009-0479.2019.04.001 .
FEIZhiwen,WUDong,YANGZe,TONGZhipeng. InfluenceAnalysisofUndergroundMiningontheStabilityofMainandAuxiliaryMineshaftinDashuigouSectionofYinminCopperMine[J]. JOURNAL OF KUNMING METALLURGY COLLEGE, DOI: doi:10.3969/j.issn.1009-0479.2019.04.001 .
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链接本文: http://kmyzxb.magtech.com.cn/CN/doi:10.3969/j.issn.1009-0479.2019.04.001
http://kmyzxb.magtech.com.cn/CN/Y2019/V35/I4/1