城市暴雨資料統(tǒng)計(jì)方法及暴雨公式求參方法的研究

1、湖南大學(xué)碩士學(xué)位論文城市暴雨資料統(tǒng)計(jì)方法及暴雨公式求參方法的研究姓名：任伯幟申請(qǐng)學(xué)位級(jí)別：碩士專業(yè)：市政工程指導(dǎo)教師：許仕榮2000.4.1StatisticalmethodofurbanrainstormdataanddeterminationofthecoeffiicientsofitsformulaAbstractRainstormintensitvformulaisimportantinthemunicipaldrainaged

2、esignTheB—ccurateformul8wasreliedondependabilityofrainstormformuladatawhichwasgotbypluviograph，rationalityofthestatisticalmethodandoptimizationofitsformualcoeffi—cientsTherearetwoimportantquestionsinmakinguptheformulaofu

3、rbanrainstornin—tensityoneistodeducetheregularityofthefrequencydistributionbypluviographtodeterminatethefrequencyintensity，theotheristochoosetheformatoftherainstornformulaandtooptimizateitscoefficientsTheformerdeterminat

4、ethedependabilityofthei—l—Tdatathelaterinflectifitcandenotethereqularityofi—t—TdatawhichwasmadebyfrequencydistributionWiththe25year’srainstormdataofChangsha(1974—1998)，selectionofthesampiingmethodandthefrequencydistribut

5、edline—typeanddeterminationofitsstatisticalcoefficientsselectionoftherainstormforrrtulaformatanddeterminationofitscoeffi，cientsaremadethefurtherresearchandcalculatedandcomparedwiththecomputerinthispaperTheconclusionsasfo

6、llomaredrawn(1)Togetthedependablefrequencyin—tensity，selectionofthesamplingmethodandthefrequencydistributedline—type，whichmustfitthelocalurbanrealityanddevelopingdemands，aredeterminateaccordingtotheurbanrainstormdatabypl

7、uviographandreturnperiodofmunicipaldrainagede—signandthestatisticalworkand80on(2)Comparedwithmanycalculatedmethodssuchasthedifferentialmethod，thegraphicandleastsquaremethod，ands0on，theNemton—lafeixun’smethodisthebetterme