欢迎来到天天文库
浏览记录
ID:55808284
大小:839.99 KB
页数:4页
时间:2020-06-03
《断层附近工作面底板突水评价研究.pdf》由会员上传分享,免费在线阅读,更多相关内容在应用文档-天天文库。
1、V01.4lNo.1矿业安全与环保第41卷第1期Feb.2014MININGSAFEI1Y&ENVIRONMENTALPROTECTION2014年2月宋召谦,郭威,王玉和.断层附近工作面底板突水评价研究[J].矿业安全与环保,2014,41(1):20—22文章编号:1008—4495(2014)01一oo20—03断层附近工作面底板突水评价研究宋召谦,郭威,王玉和(1.山东新矿赵官能源有限公司,山东青岛266590;2.山东黄金集团烟台设计研究工程有限公司,山东烟台264000;3.山东科技大学资源与环境工程学院,山东青岛266590)摘要:为了使突水系数法在煤矿底板突水评价中更加准确
2、有效,考虑到采动影响下工作面底板与断层间的相互作用,建立断层上盘倾斜隔水关键层力学模型,并对其薄板模型的挠度进行求解。通过工作面底板实际破坏深度与断层上盘倾斜隔水关键层模型联合计算,得到断层附近工作面底板最易突水路径。在此基础上,提出断层附近突水系数法改进公式,并将其应用于某矿工作面底板突水评价中,结果表明:改进的突水系数法比传统突水系数法计算所得突水系数值高0.046MPa/m,进而将工作面底板由突水较危险区评价为突水危险区。关键词:底板突水;改进型突水系数法;隔水关键层;最易突水路径中图分类号:TD745.21文献标志码:B网络出版时间:2014—01—1509:52网络出版地址:ht
3、tp://www.enki.net/kcms/detail/50.1062.TD.20140115.0952.006.htmlEvaluationandResearchonWaterInrushfromWorkingFaceFloornearFaultSONGZhaoqian,GUOWei,WANGYuhe(J.ZhaoguanEnergyCo.,Ltd.,ofShangdongXinwenMiningGroup,Qingdao266590,China;2.YantaiDesignandResearchEngineeringCo.,Ltd.,ofShangdongGoldGroup,Yan
4、tai264000,China;3.SchoolofResourcesandEnvironment,ShandongUniversityofScienceandTechnology,Qingdao266590,China)Abstract:Inordertomakethewaterinrushcoeficientmethodmoreaccurateandeffectiveintheevaluationofminefloorwaterburst,amechanicalmodelexpressingthehanginginclinedwater-resistingkeystratawasest
5、ablishedbytakingintoaccounttheinteractionbetweentheminefloorandthefaultundertheinfluenceofmining,solutionwascarriedoutforthedeflectionofthesheetmode1.Basedonthecombinedcalculationoftheactualfailuredepthoftheworkingfacefloorandthemodelofthehanginginclinedwater—resistingkeystrata,themostvulnerablewa
6、ter—inmshpathoftheworkingfacefloornearthefaultwasfound.Onthisbasis,theimprovedformulaofthewater-inmshcoeficientmethodwasproposedandthenusedintheevaluationoftheworkingfacefloorwaterinrushofamine.Theresultsindicatedthatthewater—burstcoeficientwhichwascalculatedbytheimprovedwater—inrushcoeficientmeth
7、odwas0.046MPa/mhigherthanthatcalculatedbythetraditionalwater—inrushcoeficientmethod,finally,theworkingfacefloorwasevaluatedfromthemoredangerouswater-inrushareaintothedangerwater-inrush0ne.Keywords:waterinrushfrom
此文档下载收益归作者所有