資源描述:
《西北半干旱地區(qū)大水礦床成因機制——以錦界煤礦為例.pdf》由會員上傳分享,免費在線閱讀,更多相關(guān)內(nèi)容在行業(yè)資料-天天文庫。
1、第11卷第6期水利與建筑工程學(xué)報V01.11No.62013年12月oumalof‰據(jù)rResourcesandArchitecturalDeC.,2013DOI:10.3969/j.issn.1672—1144.2013.06.003西北半干旱地區(qū)大水礦床成因機制——以錦界煤礦為例朱春孝,謝配紅,邢立亭2,一,周娟2,谷亞偉4(1.貴州省地質(zhì)礦產(chǎn)勘查開發(fā)局106地質(zhì)大隊,貴州遵義563000;2.濟南大學(xué),山東濟南250022;3.山東省地下水?dāng)?shù)值模擬與污染控制工程技術(shù)研究中心,山東濟南250022;
2、4.中國礦業(yè)大學(xué)(北京)地測學(xué)院,北京100083)摘要:以錦界煤礦為例,通過礦床水文地質(zhì)分析,研究礦坑涌水量的構(gòu)成及其影響因素,結(jié)果表明:錦界煤礦開采破壞了頂板隔水層,導(dǎo)通了充水通道,改變了原有的水循環(huán)模式,使孔隙水與裂隙水通過充水通道進入采空區(qū)和工作面,涌水量達到5300m3/h,從而形成了大水礦床。在此基礎(chǔ)上,提出礦區(qū)含水層的保護措施,為礦井安全生產(chǎn)和該地區(qū)水資源保護提供科學(xué)依據(jù)。關(guān)鍵詞:大水礦床;含水層;涌水量;礦床充水;成因機制中圖分類號:P641.461文獻標識碼:A文章編號:1672—11
3、44(2013)06---0011一o5GeneticMechanismofHeavy·waterDepositinNorthwestAridRegionofChina——IkingJinjieMineasanExampleZHUChun-xiao,XIEPei.hong,XINGLi.ting2一,ZHOUJuan2,GUYa.wei4(1.No.106GeologicalTeamofGuizhouProvinceGeologicalandMineralExplorationandDevelopmen
4、tBureau,Gu/zhou563000,China;2.Ji’nanUniversity,’/tan,Shandong250022,Ch/na;,3.ShandongProvinceEngineeringTechnologyResearchCenterforGroundwaterNumericalSimulationandContaminationControl,Ji’nan,Shandong250022,China;4.CoUegeofGeoscienceandSurveying-mappingE
5、ngineering,ChinaMiningUnive~ity(凡g),&,2g100083,China)Abstract:TakingJinjieCoalMineasanexample,onthebasisofthehydrogeologicalanalysisofthedeposit,thestmc-tureandinfluencingfactorsofminewaterinflowarestudiedhereindetail.,n1eresearchresultsshowthatJinjieCoa
6、lMine’Sminingdestroysthewater-resistingrooflayer,andthenconductsthewaterchannels.Asaresult,theoriginalmodeofhydrologicalcycleischanged,resultingintheporewater,fissurewaterandsurfacewaterflowintothegoafandworkingsurfacethroughthewaterchannels,whichwouldhe
7、lpthewaterinflowbequitelarge(evenreach5300mj/h),thentheheavy-waterdepositwouldbeformed.Basedonthis,theprotectionmeasuresofthemineaquiferareputfor·ward,andthescientificbasiscouldbeprovidedfortheminesafetyinproductionandthewaterresourceprotectioninthisarea
8、.Keywords:heavy-waterdeposit;aquifer;waterinflow;depositwaterfilling;geneticmechanism我國西北干旱地區(qū),降水少,蒸發(fā)量大,水資源壞已是共識,但由于地質(zhì)條件的復(fù)雜性,如頂板巖貧乏,但煤炭資源蘊藏量大,礦區(qū)排水與生態(tài)環(huán)境、性、水頭壓力、斷裂性質(zhì)等多種因素的影響,造成突工農(nóng)業(yè)及居民生活用水之間存在巨大矛盾_1J。錦水預(yù)測難度大、研究進展緩慢_4J。本文擬通過錦界界