城市污水规划辅助系统中设计流量计算模型的建立

(,430063):GIS,,,,:;;;:X703.1:C:1000-4602(2007)24-0035-03EstablishmentofDesignedDischargeComputationModelinAuxiliaryMunicipalSewagePlanningSystemSHIYi2xiong(ChinaRailwayFourthSurvey&DesignInstituteGroupLtd.,Wuhan430063,China)Abstract:AimedattheproblemsexistingincomputationofthepipelinedesigneddischargeinplanningofmunicipalsewagesystemunderGISplatform,andbasedonthestructuralanalysisofmunici2palsewagesystem,adesigneddischargecomputationmodelwasestablishedusingrecursivealgorithm.Therecursivecomputationprogramwascompiledwithexamples,andthefeasibilityofthemodelwasveri2fied.Keywords:GIS;municipalsewageplanning;designeddischarge;computationmodel,,,(GIS),,[12]1,,,(),,,,,,,,2GISGISGeoDatabase,(OracleMSAccess),,GIS,,GeoDatabase,,,3311532324200712CHINAWATER&WASTEWATERVol.23No.24Dec.2007,,:;;,,,,[3],a.i0,,:Q(i)=KzQarea(i)+Qpoint(i)(1)b.i0,:Q(i)=Kz[Qarea(i)+Qarea(k)]+Qpoint(i)+Qpoint(k)(2)Q(i)i,L/sQarea(i)i,L/sQpoint(i)i,L/sQarea(k)ik(),L/sQpoint(k)ik(),L/sKz,1[4],;,1KzTab.1OverallvariationcoefficientKzofdomesticwastewater/(Ls-1)51540701002005001000Kz2.32.01.81.71.61.51.41.3GIS,,GISArcGISDesktop,Polygon,,,Line,()Point,(23)FromTo,2Tab.2DesignedpipelinedatasheetFromTo4219G1044219A14219A34219G1054219A24219A33Tab.3CollectednodedatasheetQareaQpoint4219A10254219A23.1203Qarea,Qpoint,23,:L=P-1(3)L2,P3,(3)312,,,,,,,:iiFrom(i)To(i)Qarea(i)Qpoint(i)Q(i)i(i=1,2,,L),iFrom(i)To(i)223,3632324(i),QareaQpoint,iQarea(i)Qpoint(i)Q(i)0iFindex(i)Cnumber(i)Flag(i)Findex(i)i,0From(j)=To(i),ji,ji,Findex(i)=jCnumber(i)i,0From(i)=To(k),ik,ki,,Cnumber(i)Flag(i)01,0,0i,1,1,1Fig.1Flowchartofdesigneddischargecomputationofmunicipalsewagesystem:100(i),,0,,;0,,:a.i1,b.ji,i,1c.0,,,;,,313,,,ESRIGISArc2GISGeoDatabase,Oracle9iGeoDatabase,,,,4,GeoDatabase,SDE,,,,,:[1],.Geodatabase[J].,2003,29(8):84-86.[2],.GIS[J].(),2002,29(3):127-131.[3],.[M].:,2000.[4]GB500142006,[S].:[phone]E-mail:[e-mail]:2007-05-1073