Page 52 - 2025年第56卷第2期
P. 52

报(中英文),2023,21(1):10 - 22.
                [18] 白玉川,黄本胜.河网非恒定流数值模拟的研究进展[J].水利学报,2000(12):43 - 47.
                [19] ELIRN,WIGGERTJM,CONTRACTORDN.Reverseflowroutingbytheimplicitmethod[J].WaterResources
                       Research,1974,10(3),597 - 600.
                [20] 王家彪,赵建世,雷晓辉,等.基于旋转 x - t平面的河渠水流反向演算[J].清华大学学报(自然科学版),
                      2020,60(10):855 - 863.
                [21] 曹若馨,张可欣,曾维华,等.基于 BP神经网络的水环境承载力预警研究—以北运河为例[J].环境科学
                       学报,2021,41(5):2005 - 2017.
                [22] 朱振国,田松禄.基于权值变化的 BP神经网络自适应学习率改进研究 [J].计算机系统应用,2018,27
                       (7):205 - 210.
                [23] 程伟平,廖锡健,陈一帆,等.基于逆向概率密度函数的污染云团空间重构[J].四川大学学报(工程科学
                       版),2012,44(4):32 - 38.
                [24] 王家彪,雷晓辉,廖卫,等.基于 耦 合 概 率 密 度 方 法 的 河 渠 突 发 水 污 染 溯 源 [J].水 利 学 报,2015,46
                       (11):1280 - 1289.
                [25] 胡鹏,崔小红,周祖昊,等.流域水文模型中河道断面概化的原理和方法[J].水文,2010,30(5):38 -
                       41 ,79.



                             Methodologyforidentifyingthesourceofsuddenwaterpollutionin
                                               typicalloopedrivernetwork

                              1
                                                                          3
                                                1
                                                                                                       2
                                                                                          1
                                                           2
                 WANGJiabiao,ZHAOTongtiegang,CAISiyu,ZHAOJianshi,CHENXiaohong,WANGHao
                                 (1.SchoolofCivilEngineering,SunYat - SenUniversity,Zhuhai 519082,China;
                                2.ChinaInstituteofWaterResourcesandHydropowerResearch,Beijing 100038,China;
                                            3.TsinghuaUniversity,Beijing 100084,China)
                  Abstract:Withtherapidurbanizationprocess,theproblem ofsuddenwaterpollutioninChinaisbecomingin
                  creasinglyprominent.Afterpollutionoccurs,theprimarytaskistoidentifythesourceofpollutionforemergency
                  disposal.Nowadays,therearemanystudiesonthesuddenwaterpollutionsourceidentification,buttheyaregen
                  erallynotapplicabletotheloopedrivernetworkcases.Thereasonforthisissueisthattheproblem ofidentifying
                  pollutionsourceinaloopedrivernetworkisseverelyill - posed ,involvingcomplexcalculationsandbeingratherdif
                  ficulttosolve.Therefore,thisresearchproposesacreativemethodforidentifyingthesourceofsuddenwaterpollu
                  tioninaloopedrivernetwork,whichincludes:(1)thetaskofidentifyingpollutionsourceisdividedintotwo
                  steps:thefirststepinvolvesidentifyingtheriverwithapollutionsource,andthesecondstepinvolvesidentifying
                  detailedinformationaboutthepollution ;(2)atthefirststep,theBPneuralnetworkalgorithmisusedtocalculate
                  thespecificriverwhereapollutionsourceislocated ,andtheflowandwaterqualitymodelsarefurtherusedtocal
                  culatetheconcentrationofpollutantsattheoutletoftheidentifiedriverwhenobservationsarenotavailableinthis
                  river ;(3)atthesecondstep,aftertheriveridentified,thedetailedinformationofpollutionsourceincludingthe
                  releaseposition ,thereleasetime,andthereleasemass,canbefurtherestimatedusingthebackwardlocation
                  probabilitydensitymethod ;(4)theproposedmethodhasbeenappliedtoatypicalloopedrivernetworkcase,and
                  theresultsshowthatthismethodcaneffectivelyidentifythesourceofsuddenwaterpollutionfromaloopedrivernet
                  work.Thisresearchachievementcanservefortheemergencyresponse,responsibilitymanagement,andpre - e
                  mergencyplanningofsuddenwaterpollutionintherivernetworkareas ,withgreatpracticalsignificanceandbroad
                  applicationprospects.
                  Keywords:loopedrivernetwork; pollution sourceidentification; inverseproblem; sudden waterpollution;
                  mechanism - data


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