荣康煤业工作面保水开采研究闫永星(太原煤炭气化(集团)有限责任公司,山西太原030000)摘要:针对荣康煤业10、11号煤带压开采存在的突水问题,采用理论分析确定了11煤底板有效隔水层厚度为11m;采用物探手段得到11004工作面底板的2处富水异常区,分别为底板0~40m范围的工作面中部距切巷590~620m之间,推断为富水异常区;顶板0~40m和顶板40~80m都探测出轨道顺槽一侧距切巷170~195m之间;通过工程经验确定了钻孔布置参数及相关注浆工艺,钻孔间距为50m,注浆层位为进入奥灰18m。关键词:底板;奥灰水;保水开采中图分类号:TD743文献标志码:A文章编号:1009-0797(2023)02-0014-05StudyonwaterconservationmininginRongkangcoalminingfaceYANYongxing(TaiyuanCoalGasification(Group)Co.,LTD,Taiyuan03000,China)Abstract:InviewofthewaterinrushproblemexistingintheminingunderpressureofNo.10andNo.11coalseamsofRongkangCoalIndustry,theeffectivewaterresistinglayerthicknessofNo.11coalseamfloorisdeterminedtobe11mbytheoreticalanalysis;Twowaterrichabnormalareasatthefloorof11004workingfaceareobtainedbygeophysicalprospecting,whicharerespectively590~620mfromthemiddleoftheworkingfacewithintherangeof0-40mofthefloortothecuttingroadway,andareinferredaswaterrichabnormalareas;Boththe0-40mand40-80mroofdetectthatthedistancebetweenonesideofthetrackchuteandthecutroadwayis170~195m;Thedrillinglayoutparametersandrelatedgroutingtechnologyaredeterminedthroughengineeringexperience.Thedrillingspacingis50m,andthegroutinglayeris18mintotheOrdovicianlimestone.Keywords:bottomplate;ordovicianlimestonewater;waterconservationmining0引言山西是我国的煤炭大省,长期以来为我国经济社会发展和保障国家能源安全做出了重要贡献,但煤炭开采也带来了土地沉陷、水资源破坏、瓦斯排放、煤矸石堆存等一系列生态环境损害问题。山西省吨煤开采破坏水资源约为2.54m3/t,以2018年山西省原煤产量8.75亿t计,约破坏水资源22.2亿m3,使本就十分紧张的区域水资源供需矛盾更加尖锐。煤炭开采过程中,受地表沉陷、顶板活动与底板破坏等影响,顶板水和底板水不仅会给矿井安全生产带来巨大威胁,而且会出现大量流失而进一步加剧矿区生态环境和径流条件恶化[1-3]。因此,亟需通过保水开采途径实现安全和绿色的双重目标...