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ID:36588474
大小:6.54 MB
页数:166页
时间:2019-05-12
《防波堤风险分析与管理研究》由会员上传分享,免费在线阅读,更多相关内容在学术论文-天天文库。
1、天津大学博士学位论文防波堤风险分析与管理研究姓名:蒋学炼申请学位级别:博士专业:港口、海岸及近海工程指导教师:李炎保20061201ABSTRACTInmispaper'ttleriskanalysisandmanagement胁eworkofbreal州aterengiIleeringisstudied.TheeValuationSyst锄觚drelatedmodelsarcestablishedtoilltegratethetechnicalindexeswitheconomicindicators
2、oro也ernontechnicaliIldexes.TheworkilltlliSp印erConsistsoffollrpartS:studyon廿lemdomic埘ofocealldynamicel锄ents;researchonthequantitativemethodsfortherisl(siIlbreakw绷erengilleering;discussiononthedecision-makingmodelst.orbrcakwatelrrisk;exploringontllem卸ag锄em
3、ofthercmainingriska佥crtlleoptim边ationofbrealI州atcr.In廿lefirStpart,therisl【sofbre小撇telrinducedbytIleuncenahltieseXistinginex仃emaldis仃ibutionofoceandyn锄icelemerllsarcdiscusseda11ead.TheIl,theAni6cialNeuralN咖rktechniqueisiIl仃oducedtohindcaStingtheloStwaVeda
4、tainobservation.Thereafter,theregional丘Iequcncy锄alysismemodsbaSedonL-momentsispmfonⅣardt0solvetheproblemofbeillgshortofdatas锄plesintheparametereStimateofmeex讶emaldistributjonbycollectingthehomogeneousdataillneighborh00dregions.IUsk觚alysis0nbre妇a:terisnot
5、possibleif也eenviro衄entalconditionsarcnotproperlyquaIltified.n印pearsthatt
6、1etraditionalmethodstodescribet11ejointstatiSticsofoce锄dynamicconditionsarenotalwaysconsistentwimtllephysicalbehaviourofwaVeconditions.Analtemativemodeisproposedtodesc抽eproperlytIle
7、jointprobabil时distributionofoce锄dynamicconditionsbycombiningt11estatiSticalmodelswithpar舳le仃icphysicalmodels.Int11esecondpart,nlefirStproduceistllesettingupoft11efaulttreeofbreal(waterbyanalysingmorethan200caSesofbreal洲aterfailures.Then,somereliabili够.ba
8、sedmethodsaureprovidedforquantifyingbreal(waterrisk.Anewideaisproposedt0impr0Vetheprecisionofcomputillgfa订ureprobabilitybycombiningMonteCarlosimulationwimtraditionalreliabilitymemod.Intheendofthispart,twocaSestudies,reliability-basedstabi】j妙analysisofrub
9、blemoundbreakwateranddefo咖ation.basedmodelquanti矽ingmeanderingdamageofcaissonbreal(、】忸ter,arepresentedtoveri矽i119锄ddiscussingthe印plicationofriskeValuationtheo哕inbreal(waterengineering.Inthethirdpart,severalmodelsforthedeci
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