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1、第39卷第7期煤炭学报Vol.39No.72014年7月JOURNALOFCHINACOALSOCIETYJuly2014孙鹏飞,易齐涛,许光泉.两淮采煤沉陷积水区水体水化学特征及影响因素[J].煤炭学报,2014,39(7):1345-1353.doi:10.13225/j.cnki.jccs.2013.0959SunPengfei,YiQitao,XuGuangquan.CharacteristicsofwaterchemistryandtheirinfluencingfactorsinsubsidencewatersintheHuainanandHuaibeiminingareas,
2、AnhuiProvince[J].JournalofChinaCoalSociety,2014,39(7):1345-1353.doi:10.13225/j.cnki.jccs.2013.0959两淮采煤沉陷积水区水体水化学特征及影响因素孙鹏飞,易齐涛,许光泉(安徽理工大学地球与环境学院,安徽淮南232001)摘要:为分析沉陷积水区主要补给水源及相应的溶质来源,在淮南“潘谢”矿区和淮北“朱-杨庄”矿区各选取3个研究站点,基于水化学基本理论和原理,分析了各研究水域主要离子质量浓度、组成及类型,采用Gibbs图及因子分析方法,对水化学特征的影响因素进行了讨论。结果表明:水体总溶解性固体(TDS
3、)质量浓度在丰、平、枯水期总体上逐渐升高,淮北沉陷积水区水体的矿化度、碱-+度和总硬度均高于淮南沉陷积水区。水化学组成在区域范围具有一定的空间变异性,HCO和Na3+--+2+-在阴阳离子中占有最大比例;淮南3个站点水化学类型主要为Na-HCO-Cl和Na-Ca-HCO33+2+-型,淮北3个站点则为Na-Mg-HCO型。Gibbs图和因子分析共同揭示了淮南沉陷积水区水化3学特征主要受浅层地下水和地表径流的双重影响,而淮北沉陷积水区离子组成主要体现了区域浅层地下水化学的特征。关键词:采煤沉陷区;水化学;因子分析;淮南矿区;淮北矿区中图分类号:P592;X142文献标志码:A文章编号:025
4、3-9993(2014)07-1345-09CharacteristicsofwaterchemistryandtheirinfluencingfactorsinsubsidencewatersintheHuainanandHuaibeiminingareas,AnhuiProvinceSUNPeng-fei,YIQi-tao,XUGuang-quan(SchoolofEarthandEnvironment,AnhuiUniversityofScienceandTechnology,Huainan232001,China)Abstract:Inordertoknowwatersources
5、andtotaldissolvedsolids(TDS)ofminingsubsidencewaters,sixsiteswereselectedintheminingareasofHuainan“Panxie”andHuaibei“Zhu-YangZhuang”.Thecontents,compositionsandtypesofmajorionswereanalyzedbasedonthegeneraltheoriesandprinciplesofwaterchemistry.UsingtheGibbsgraphandthemethodoffactoranalysis,theinflu
6、encingfactorswerefurtherdiscussed.TheresultsindicatethattheTDSareelevatedinallsitesduringtheperiodofwetseason,medianwaterperiod,anddryseason.TDS,alkalinityand+-hardnessofthesubsidencewatersinHuainbeiareobviouslyhigherthanthoseinHuainan.Meanwhile,NaandHCO3accountsforagreatpartofthetotalcationsandan
7、ionsrespectively,althoughtheirwaterchemistryvarieddepending+-onthesamplingsite.TheHuainanminingsubsidencewatersmainlybelongstowaterchemistrytypeof“Na-HCO-3-+2+-+2+-Cl”and“Na-Ca-HCO”,anditisthetypeof“Na-Mg-HCO”int
