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©1994-2010ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.(2001)05-007-005,,(,430072):,,,:,,.:;;:X523;TV211.1+2:A,..,SiO2Al2O3Fe2O3CaO..14112.pH(SS)(F)COD.,,[14].11350MW,198712.,112.6km.,.500m.1.1.11976198610601061.17m5m,10m.500m,.1986,10631064.30m1057.78m,(1062.3)4.5m.,2.02.5m,,.,.198850m,350mm,4.5m.1996,900m(15m)27,2550m,15.527.5m,,.1997.:2001-01-14:(1972-),,,,.:(59639240)(SPKJ016-08).345200110()EngineeringJournalofWuhanUniversityVol.34No.5Oct.2001©1994-2010ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.[5,6],.(i,j,k),:qi,j-1/2,k+qi,j+1/2,k+qi-1/2,j,k+qi+1/2,j,k+qi,j,k+1/2+qi,j,k-1/2+QSi,j,k=SSi,j,khi,j,ktrjcjvk(1):6(i,j,k)6;QSi,j,k(i,j,k):QSi,j,k=Nj=1ai,j,k,n=Nn=1pi,j,k,nhi,j,k+Nn=1qi,j,k,n(2),ai,j,k,nn(i,j,k),L3T-1;pi,j,k,nqi,j,k,n,L2T-1L3T-1;SSi,j,k(i,j,k);rj,cj,vk(i,j,k).MTD3,[59],MODFLOW.2.119976.67.5=48.75km2.,,,,3040m,2.22.21997K=15.0m/d..Kx=Ky=0.3m/d,Kz=0.15m/d,Ss=0.00011/m,Sy=0.2;Kx=Ky=15m/d,Kz=0.3m/d,Ss=0.000011/m,Sy=0.02.Ss,Sy.,,41m..2.34,.2/d/m/m03653737.5365182538.539.5182536504143.52.3,pH8.5,.1mg/L.,.8()2001©1994-2010ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.()2.4,,VMODZbud.Zonel,Zone2,Zone3.Zone1,Zone1Zone22065.6m3/d;2304m3/d.,,,.3,.:2.53.0m,,.3.1,.45cm,10m20m40m,.40m.K=10-7m/d.,:(1)40m,,10m20m.(2).40m.5:9©1994-2010ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.:QDi,j,k=CDi,j,k(hi,j,k-di,j,k)(hi,j,kdi,j,k)(3)QDi,j,k=0(hi,j,kdi,j,k):QDi,j,k(i,j,k);di,j,k;CD,,.CDCD=KLW/M:K;L;W;M.,,CD5003000m2/d.3.2.1CD,500,1000,2000,3000m2/d,.,CD,3.3(t=18253650d)m3/d/m/m2d-15001000200030004433949355256580710182662052923025237012,,CD.4m,,46m,5m,10mCD500m2/d.3.2.21km.,4.5m,5m.500,1000,2000m2/dCD.,CD1000m2/d.,CD.3.3:;.,,.,.27,.,,,,,.,600m3/d.,.,30m3/h,20h.2550m,.161396,,9,67.44.6910()2001©1994-2010ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.:(1),.(2),,,.,.,.(3).(4),.,.(5):.,,.,,,[9].:[1].[M].:,1994.[2].[M].:,1995.[3].[M].:,1998.[4],.[M].:,1990.[5].[M].:,1996.[6].[M].:,1983.(31)5:11©1994-2010ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.(1.ZhejiangProvincialElectricPowerDevelopmentCompany,Hangzhou310014,China;2.HangzhouHydraulicandElectricDesignInstitute,Hangzhou310014,China)Abstract:Combiningthecontrollingirrigation-drainageengineeringitemforpaddyfieldinTaishancityofGuangdongprovince,theauthorsputsthestressonthequestionsofnon-uniformclearanceonauto-hydrantsforirrigationsystem.Applyingthesteepestdescentalgorithmtoworkouttheproblemofsystemofnonlinearequations.Thisissueworksonthemathematicalanalysismethodondifferentconditionsoftheholesopenandclose.Thereforeitaffordswaysofsci2entificcalculationforimprovingtheirrigationsystem.Keywords:waterdeliverypipeline;auto-hydrant;non-uniformoutflow;mathematicalmodel;steepestdescentalgo2rithm(11)[7].[M].:,1989.[8].[M].:,1982.[9].R.A.,J.A..[M]..:,1987.InitialstudyoninfluenceofashfieldsoncircumambientgroundwaterHUANGShuang,CAIShu-ying,YANGJin-zhong(SchoolofWaterResourcesandHydropower,WuhanUniversity,Wuhan430072,China)Abstract:Onthebasisofonepowerplantsashfield,fromthecurrentsituationofpowerplantsashstockinChina,influencesofashfieldsonwatertableandqualityofgroundwateraroundthecircumstancearesimulated,andthreeschemes,waterproofwall,drainpipesandpumpwells,forpreventinginfluencesofplainashfieldonthegroundwaterenvironmentarestudied.Finally,anumericalsimulationonthreeschemesiscarriedout;andapracticaltreatmentschemeeithereconomicallyortechnically,isconcluded.Keywords:ashfrompowerplant;watertableandqualityofgroundwater;treatmentscheme5:31