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时间:2017-12-08
《义马煤田煤矿水害规律与防治技术_李松营》由会员上传分享,免费在线阅读,更多相关内容在行业资料-天天文库。
1、第11卷第1期华北科技学院学报Vol.11No.12014年1月JournalofNorthChinaInstituteofScienceandTechnologyJan.2014义马煤田煤矿水害规律与防治技术1,2131李松营,马自强,张许乐,任孟莉(1.中国矿业大学(北京)地球科学与测绘工程学院,北京100083;2.义马煤业集团股份有限公司地质研究所,河南义马472300;3.义马煤业集团股份有限公司跃进煤矿,河南义马472300)摘要:为了掌握义马煤田水害规律以正确指导煤矿的防治水工作,分析研究了
2、历次突水资料、地质构造、小煤矿分布、河流流经区域、主要含水层和隔水层、采煤厚度及采后导水裂隙发育情况等,指出:随着小煤矿的关闭、河道疏浚、浅部地裂缝充填和大矿采掘活动向深部转移,矿井主要水害由大气降水、地表河水和小窑水转化为顶板水;顶板水威胁主要在义马向斜的核部、采深大于700m的区域,断层尖灭端和断层带富水性较强,顶板突水及其强度与采厚、周期来压关系密切。针对顶板水害,提出了采用“三图—双预测法”对顶板突水的水源、通道和强度做出预测和评价;采用井上下物探方法,圈出顶板疑似富水区,并进行采前预疏放;完善工
3、作面排水系统,提高抗水灾能力等防治水技术。关键词:煤矿水害;顶板水;砂砾岩含水层;向斜;地表河水;小窑水中图分类号:TD745文献标识码:A文章编号:1672-7169(2014)01-0058-06StudyontheRegulationofWaterHazardsandPreventionWorkinYimaCoalfield1,2131LISong-ying,MAZi-qiang,ZHANGXu-le,RENMeng-li(1.CollegeofGeoscience&SurveyingEnginee
4、ring,ChinaUniversityofMining&Technology,Beijing,100083,China;2.GeologicalInstitute,YimaCoalIndustryGroupCo.,Ltd.Yima,472300,China;3.YuejingCoalMine,YimaCoalIndustryGroupCo.,Ltd.,Yima,472300,China)Abstract:Inordertogettheregulationofwaterhazardsandtosupply
5、forthefuturewaterpreventionworkinYimaCoalfield,thehistoricdata,geologicalstructure,thedistributionofsmallcoalmines,theriverregion,themainaquiferandaquifuge,miningthicknessandthefissureshavebeenanalyzedsystematically.Withsmallcoalminesclosure,treatmentoffi
6、ssuresandchannels,andthedeeperminingactivities,themainwaterhazardshavechangedfromprecipitation,surfacewaterandkilnwaterintoroofflood.Thethreatoftheroofwatermainlyhappenedonthecoreofsynclinewith700mdeepandalsohappenedontheedgeoffaultandtherichabundanceregi
7、on.Roofwaterinrushhascloserelationshipwithminingthicknessandperiodicminepres-sure.Forroofwaterhazard,“threemaps-twopredictions”wasproposedandappliedinevaluationandpre-dictionofwaterinrushsource,channelandintensity.Withgeophysicalprospecting,thesuspectedwa
8、terrichareahasbeenobtainedandthenthedrainageworkcouldbedonebeforemining.Besides,otherwaterpreven-tionworkwhichcanimprovethedrainagecapacityoftheworkingfacealsoshouldbecarriedout.Keywords:waterhazardsincoalmine;roofw
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