简介：水库沉积在全世界是一个成长问题。因此，水库desiltation上的存在文学系统地被检验了并且评估。评论被划分成处理水库desiltation的不同方面的三个话题。第一个话题对待不同水力的水库挖除淤泥技术。力量被放在到来的沉积的已经扔的沉积和路由涌出从上在上游通过一座水库，而是其他的方法，例如通过灵活管子搬运沉积并且吸，也被描述。第二个话题在水力的水库涌出以后对待产生水库地形学。这由于涌出，而且可得到的文学在上在地形学包括代表性、纵的变化物理并且分析模型。第三个话题对待下游的geomorphological和sedimentological效果在期间并且在冲洗操作的水库以后。注意被给浇流动--，沉积集中--，并且免职模式，以及搬运并且扔的沉积特征。

简介：Reliablequantitativeestimationofbedaggradationordegradationisimportantforriver-trainingandwatermanagementprojects.Withthedevelopmentofwaterresources,sedimentproblemsassociatedwithadamarebecomingmoresevere.Thispaperdescribessomespecialproblemsinmathematicalmodelforcalculationofdegradationandaggradationinareservoir.Themaineffortsofthisstudyareonthetreatmentofsomephysicalprocessesoffinesedimenttransport(＜0.05mm).Problemsinareservoirareobviouslydifferentfromanaturalstream,suchastheturbidcurrentflow,orificesedimentflushing;andtheinitiationandconsolidationofcohesivesedimentdeposition.ThecaseofLiujiaxiaReservoir,whichislocatedintheupperreachesoftheYellowRiver,isemployedtoverifythemodel.Theresultsshowthatthemodelisapplicableintheevaluationofanengineeringplaningwithplentyoffinesedimentmovement.

简介：Inthisstudy,asemi-analyticalformulationbasedontheScaledBoundaryFiniteElementMethod(SBFEM)wasproposedandusedtoobtainthesolutionforthecharacteristicsofatwo-dimensionaldam-reservoirsystemwithabsorptivereservoirbottominthefrequencydomain.Forsimplicity,thedamwitharbitraryupstreamfaceswasassumedtoberigidandwassubjectedtoahorizontalgroundacceleration,whilethereservoirwithabsorptivebottomwasassumedtobesemi-infinite.Thereservoirwasdividedintotwosub-domains:anear-fieldsub-domainandafar-fieldsub-domain.Thenear-fieldsub-domainwitharbitrarygeometrywasmodelledbytheFiniteElementMethod(FEM),whiletheeffectsofthefar-fieldsub-domainwhichwasassumedtobehorizontalweredescribedbyasemi-analyticalformation.Thesemi-analyticalformulationinvolvedtheeffectofabsorptivereservoirbottom,aswellastheradiationdampingeffectofasemi-infinitereservoir.AFEM/SBFEMcouplingformulationwaspresentedtosolvedam-reservoircoupledproblems.Theaccuracyandefficiencyofthecouplingformulationweredemonstratedbycomputingsomebenchmarkexamples.Highlyaccurateresultsareproducedevenifthenear-fieldsub-domainisverysmall.

简介：在研究和开发的十年以后，海洋的控制来源ElectroMagnetics(MCSEM)为油和煤气的探索进入了应用程序阶段。然而，一会儿3D当模特儿MCSEM与简单模型和许多计算时间一起是远非实际的。在复杂目标身体和它的敏感分析上基于3D频率域MCSEM的向前当模特儿的研究，我们导出能描出的一个方法抵抗水库的边。我们使用大小对偏移量(MVO)曲线的第二衍生物定义抵抗水库边。远为air-wave-dominated回答地区，我们用少些影响的明显的抵抗力建议以便改进方法的适应性。

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简介：Modernizationandmaintenanceofadamoftenrequireemptyingthereservoir,aprocessthatcancausemudbankinstabilitiesandenvironmentaldisturbances.Inordertoaddresstheproblemofmudbankcollapsecharacterization,astudyisconductedinpartnershipwiththeLaboratoireNationald'Hydraulique(LNH),asubsidiaryofElectricitédeFrance(EDF).Thispaperpresentsageotechnicalmodelingofsubmergedandemergentmudbankstabilityandacomparisonofthemodelresultswiththemeasurementscarriedoutthroughoutthewholereservoir.

简介：小浪变换(WT)方法被采用了把一个原来的地球物理的信号分解成关于象毛孔液体，岩性学，和毛孔结构那样的水库特征包含不同信息的一系列部件。我们基于WT精力系列分析，反映水库液体性质的信号部件被提取开发了一个新方法。我们成功地用这个方法在华中从一块油地处理了真实木头数据。水库液体鉴定的结果同意井测试的结果。

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简介：Capacitydepletionisanimportantinformationrequiredforplanningofmultipurposereservoirs.Itisacomplexphenomenoninvolvingdiversefieldslikesurfacehydrology,sedimenttransport,variedflowhydraulicsandsoilconsolidation.Properassessmentofcapacityreductionishelpfulinascertainingthelifeofthereservoirandtheprojectbenefitsforcost/benefitanalysis.Inthisstudydimensionallyconsistentequationsfordepositionvolumeandthetrapefficiencyhavebeenobtained.Methodsofobtainingtheparametersinvolvedtheseequationshavealsobeenindicated.Itwasfoundthatthereisgoodagreementwiththefielddata.Itishopedthattheequationsareusefultodesignengineer.

简介：试用被坝所围住的水从2008年9月27日在三座峡水库被继续。在Hefeng有强壮的变丑和失败()山崩当水库水水平从173m的高度下降了时。它显示变丑是仔细与水库水变化有关。为这个原因，在变丑的水库水的效果被学习，拿象在这篇文章的一个例子的Hefeng山崩。首先，强壮的变丑区域的地质的特征和变丑状况被分析透露内在的因素和在水的条件下面的变丑的模式铺平变化。第二，山崩的稳定性在升起并且下降的过程，和在水库水水平变化和山崩变丑之间的相应关系期间被计算进一步被识别。最后，渗出物领域和在井的线下面的山崩身体的力量条件被分析揭示水库水的效果。而且，为更好可渗透的水库山崩，在水库水升起期间，渗出物力量的有利效果削弱相反的效果，这能被结束高举强迫水库水升起稳定性上的小效果，和没有变丑被引起了；但是在下降水库期间流水，渗出物力量的相反的效果在uplift力量的相反的效果上被附加，它引起稳定性戏剧性地减少并且在山崩前面导致累积身体的失败。

简介：石油地球物理学者认识到与油和煤气的水库有关的许多参数用地震属性数据被预言。然而，优化地震属性，预言薄沙岩水库的特性，并且提高水库描述精确性的最好怎么是为地质学家和地球物理学者的一个重要目标。基于主要部件分析的理论，我们在场一个新优化方法，叫的抑制主要部件分析。在一个油矿的当模特儿的估计和真实申请证明它能提高水库预言精确性并且有更好的适用性。

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简介：AmovablebedphysicalmodelwasconstructedtoinvestigatehydraulicdesiltationbyflushingandlateralerosionintheTapureservoir,Taiwan.Themodelscalingisbasedontherequirementfordynamicsimilarityofcohesivesedimentdepositinitiationinflushingprocesses.Formodelscaling,flumeexperimentsinvestigatingtheinitiationofcohesivesedimentdepositswerecarriedouttoestablishtherelationshipbetweencriticalshearstressoftheflowanddrydensityofthedeposit.Experimentsinthephysicalmodelwerethenperformedtomeasurethevariationsofthereservoirwaterlevel,theoutletdischargeandtheoutflowsedimentdischarge.Theprocessesofemptyingandflushingwereobservedandanalyzedinthemainflushingchannel.Oneoftheexperimentswasconductedtosimulatetheon-siteflushingoperationsonJune11,1997.Theresultsshowedthatthetotalcumulativeflushedsedimentvolumebyphysicalmodelingwasclosetothatbynumericalsimulation.Todealwiththefloodplaindeposits,experimentsoflateralerosionasanauxiliarymethodwerealsoconductedinthephysicalmodeltoinvestigatetheeffectivenessandapplicabilityfortheTapureservoir.

简介：ThispapersummarizesasetofinterpretationtechnologiesforMesozoicsandstonereservoirpredictionintheLongdongloessplateau,suchasseismicsequenceprocessingandinterpretationbasedongeneralizedStransform,theerodedpaleo-geomorphologyinterpretationofthetopoftheTriassicandavarietyoflateralreservoirpredictions.Theeffectsofemployingthesetechnologiesarecomparedandanalyzed,aswell.TheresearchresultsshowthatseismicsequenceprocessinginterpretationtechnologybasedongeneralizedStransformcandistinguish3ms(aboutthethicknessof6m)sequenceinterface.ConsequentlythetechnologycanascertainthedistributionofasandbodyoftheformationCh8andexpandtheexplorationareaoftheXifengoilfieldintheLongdongarea.

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简介：Retrogressiveerosion,awidespreadphenomenonofsedimenttransportinreservoirs,oftenimpactsonboththereservoircapacityandthesedimentationinthedownstreamriverchannel.BasedonfielddatafromtheSanmenxiaReservoirandtheLowerYellowRiveroverthepastdecades,threecoursesofretrogressiveerosionwithdistinctivefeatureswereanalyzed.Theresultsindicatethatretrogressiveerosion,especiallycausedbyrapidreductioninthewaterleveltillthereservoirisempty,oftenresultsintheserioussiltationofthelowerYellowRiverandthreatensthesafetyofthefloodcontrolintheLowerYellowRiver.Unreasonableoperationofthereservoirandincominghyperconcentratedfloodsaccompaniedbyretrogressiveerosionalsoaggravatethesiltationofthemainchanneloftheriver.However,areasonableoperationmodeofthereservoirsonamed”storingtheclear(lowsedimentconcentration)waterinthenon-floodseason,andsluicingthemuddy(highsedimentconcentration)waterinthefloodseason”wasfound,whichmightmitigatethedepositioninboththereservoirandtheLowerYellowRiver.Thisoperationmodeprovidesimportantexperienceforthedesignandoperationoflargereservoirsinotherlargeriverscarryinghugeamountsofsediment.

简介：Basedonlong-termmeasurementsatthreegaugingstations,Toudaoguai,FuguandHequ,andonemeteorologicalstation,thisarticlediscussesthefeaturesofdischarge(Q)andsedimentconcentration(CS)ofariverreachoftheYellowRiverwithareservoirlocatedintheLoessPlateau.Theimpactsofthelocalsub-watershedbetweenToudaoguaiandFugugaugingstationsonsedimentbudgettotheYellowRiverhavebeenanalyzed.Inaddition,thedepositionprocessesintheTianqiaoReservoirhavebeeninvestigated.Resultsshowover80%oftheprecipitationthatfallsinthelocalsub-watershedisunabletocontributetotheYellowRiverrunoffprocess.Itisfoundthattheannualmaximumsedimentconcentrationisusuallylessthan30kg/m3duringfloodseasonsatToudaoguaiGaugingStation,butthesedimentconcentrationvariesdramaticallyatFuguGaugingStation.About35%ofthesedimenterodedinthesub-watershedsbetweenToudaoguaiandFugugaugingstationswasproducedfromtheHuangfuchuansub-watershedwhichhasadrainageareaaccountingonlyfor10%ofthedrainageareabetweenToudaoguaiandFugugaugingstations.TheTianqiaoReservoirgenerallyhasdepositionduringthesummerfloodseason,andscouringduringthenon-floodseason.Onaverage,over85%ofdepositedsedimentinthereservoiroccursinthe12kmlonglowerreservoirreach.ThevolumeofannualdepositioninthereservoirmainlydependsonthevolumeofwaterfromthelocalregionbetweenHequandFugugaugingstations.

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