简介:为形式的闲差事分析过程,模特儿由Ghobarah等求婚了。(此后打电话给G模特儿,1999)被扩大了说明对充分的理由运动激动的结构的全球地震损坏的短暂更高的模式的贡献。建议模型身体上并且完美地衔接了G模型,最后的弄软模特儿由DiPasquale和Cakmak(1988)求婚了。相应于所有考虑颤动模式的形式的损坏索引被CQC规则或SRSS规则联合。增长动态分析(IDA)在三个例子RC框架上被执行验证建议模型,并且全面比较被执行。示范显示建议模型是安逸的实现并且在结构的损坏进化上在短暂颤动时期和模式反映转变的影响。与建议模型联系的一些限制也被探讨。进一步试验性的确认被需要以后改进模型。
简介:Inthispaper,thelongtimeseriesdataofthewellwater-leveldataof12wellsintheSichuanandYunnanareaisanalyzedbytheBaytap-Gtidalanalysissoftware,andwellwaterleveltidalresponsecharacteristicparameters(amplituderatioandphasechange)areextracted.Weanalyzedthefeaturesoftheshapeandstagechange,andcharacteristicparametersofthetidalresponseofwellwaterlevelbeforeandaftertheearthquakes,whichcanprovideanewmethodandapproachtoanalyzingtheresponserelationshipsbetweenwellwaterlevelandearthtideandbarometricpressure.TheresultsshowthatLuguhuWelland9otherwellsareaffectedbyearthtides,andtheirwellwaterlevelamplituderatiosandphasesarerelativelystable;theNanxiWellandDayaoWellwaterlevelchangesareaffectedbythebarometricpressurecombinedwithtideforce,andtheirwellwaterlevelamplituderatiosandphasesaremorediscrete.ThewaterlevelamplituderatiosandphasesofJiangyouWell,LuguhuWellandDongchuanWellaresignificanttolargeearthquakes,andtherelationshipbetweenseismicenergydensityandwaterlevelamplituderatiosandphasesofM_2waveofthethreewellsarepresented.
简介:地下的水的overexploitation在动态水水平观察井导致地下水层次,优秀的水的变化和枯竭的连续drawdown。由于陆地沉淀,井管子高举并且观察尖系统被损坏。这些环境地质学问题能由地下水水平观察为地震异例的鉴定论述严重困难。hydrogeological理论和方法上的Basied,水平衡的关系与stressstrain条件含水土层说的纸分析和水铺平政体,然后preliminarily为在一个地下水透支区域识别水水平异例很好讨论理论和方法。我们精确地装的结果表演与上述的理论和方法和从存在数据获得的多年变化模式在联合在井区域根据drawdown漏斗的散开特性的意见判定异例的性质。研究的结果对区分在水水平上从水的长期的透支抽的单个集中的水的影响有用,正确地在地下水透支区域认出水水平异例并且增加地震分析和预言的水平。
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简介:Basedonlinearporoelasticandhydrogeologytheory,amathematicalexpressiondescribingtherelationshipbetweenwaterlevelchangeandaquifervolumestrainisputforward.Combinedwithearthtidaltheory,weanalyzetheresponsecharacteristicsfromwell-aquiferwaterlevelchangetoearthtideofvolumestrainandpresentamethodofvolumestraininversionfromwaterlevelchange.Comparingtheresultsofinversionwithrealobserveddata,wefoundthatthereisagoodconsistency.Thissuggeststhatthemethodofvolumestraininversionfromwaterlevelchangeisproper.Itwillofferareferenceforlearningabouthydrogeologycharacteristics,volumestrainandsearchingforprecursoranomalies.
简介:Amodelofdoublemediumaquiferisbrieflyintroducedinthispaper,apartialdifferentialequationaboutseepagemotionderivedbythetidalstressinthemodellayerisdeduced.ComparedthisequationwithBoultonequationusedintheunconfinedaquifer,anewlaggingsupplywatertermisobtained,whichestablishthephysicalbasisforinterpretingthephasedelayphenomenaofwellwaterlevelcausedbythesolidtide.Byanalyzingthepartialdif-ferentialequation,itisfoundthatthislaggingsupplytermisrelatedwiththefluctuationoftideoccurredinthedeepaquifer.
简介:WestudythefeatureofmediachangesbeneaththeZipingpureservoiranddiscusstheprocessofpermeationwiththewaterlevelriseandfallofthereservoirfromJanuary2005toJanuary2008fromambientnoisecrosscorrelationbyusingcontinuousseismicdatarecordedbythestationsofZipingpuseismicnetworkandYZPstation.Amoving-windowcross-spectrumtechniquehasbeenusedtocalculatetherelativeseismicvelocitychangesbetweenstationpairs.Resultsrevealedanobviousrelationshipbetweenrelativeseismicvelocity,andthewaterlevelchangeswithatimedelaythatmaybecausedbypermeationduringthreemainimpoundmentsandtwolargescaledisemboguements.Impoundmentgeneratesafastandlargeimpactonthesuperficiallayer,andthechangesofseismicvelocityistheresultofincreasedpressureandpermeationduringtheimpoundment.Atthefirstimpoundment,themaineffectfactorispressure.Duringthenexttwoprocessofimpoundment,permeationbecomesthemaineffectfactor,affectingthefaultatadepthofabout8km.