采矿技术毕业论文

《采矿技术毕业论文》由会员上传分享，免费在线阅读，更多相关内容在学术论文-天天文库。

1、分类号密级学校代码10704学号0808060123西安科技大学学士学位论文题目：张家峁煤矿综采工作面矿压规律研究作者：王小辉指导教师：来兴平专业技术职称：教授学科专业：采矿工程申请学位日期：2012年6月论文题目：张家峁煤矿综采工作面矿压规律研究专业：采矿工程学生：王小辉（签名）指导教师：来兴平（签名）摘要张家峁煤矿地处神府侏罗纪煤田地方开采区的边界地带，属于浅埋厚煤层。浅埋厚煤层矿井综采面矿压显现在矿井开采初期尤其突出，严重影响工作面的安全生产，因此有必要对张家峁矿15203综采面矿压规律进行研究。本文以神

2、木张家峁煤矿综采工作面矿压显现为背景，采用工程调查、现场监测数据采集和理论分析等方法。对张家峁矿15203综采面矿压规律进行了研究。15203综采面现场观测、工程调查和理论分析得出老顶初次来压步距为54m。周期来压步距为15.6m左右；周期来压期间支架平均工作阻力达44.48MPa，非周期来压期间之际平均工作阻力约30.65MPa，来压强烈，持续时间短，工作面中部测区有65%支架安全阀开启，说明支架额定工作阻力富裕系数并不大。顺槽超前支护20m能够满足护巷要求，工作面之间20m护巷煤柱可以满足要求。关键词：浅埋

3、煤层；综采面矿压规律；Subject:AnalysesoftheMinePressureLawoftheFacewithFullyMechanizedCoalMininginZhangjiamaoCoalMineSpecialty:MiningEngineeringName:WangXiaoHui(Signature)Supervisor:LaiXingping(Signature)ABSTRACTZhangjiamaocoalmineisplacedintheboaderofShenfuJurassiccoa

4、lfieldinwhichthick-shallowcoalseamisbeared.Minepressurebehavioroccoursfrequentlyintheinitialminingstagewhichseriouslyinfluencesthesaftyinthecoalface,thus,itisofgreatnecessitytoenforcearesearchoftheminepressurelawofthe15203fullymechanizedcoalminingface.Thepap

5、ertooktheminepressurebehaviorinthefullymechanizedcoalminingfaceofZhangjiamaomineinShenmuasthebackgroundandadoptedengineeringinvestigating、fieldsupervisiondatacollecting、theoryanalyzingandothermethodtoproceedaresearchoftheminepressurebehaviorinthefaceofZhangj

6、iamaomine.Accordingtothefieldobservation、engineeringinvestigationandtheoryanlysis,thelengthofthefristweightingintervalis54m.Thelengthofperiodicalweightingintervalisabout15.6m.Theaverageworkingpressureofthesupportduringtheperiodicalweightingperiodis44.48MPaan

7、ditisabout33.6mPaotduringperiodicalweightingperiod.Thepressure,whcihseverelyoccurs,lastsforashorttime.And65%ofthesafetyvalvesofthesupportsbecomeopenwhichsuggeststhattheextracoefficientsofratedworkingpressureofthesupportsarenotveryhigh.Therequirementcanbemetw

8、ith20madvancingsupportofthegatewayand20mthickcoalpillarbetweenworkingfaces.KeyWords:shallowcoalseamLawoftheFacewithFullyMechanizedCoalMining目录1绪论11.1问题的提出11.2研究目的及意义11.3浅埋煤层矿压研究现状11.4研究内容和技术路线31