简介：ＧｒａｖｉｔａｔｉｏｎａｌｅｆｆｅｃｔｏｆｗａｔｅｒｃｉｒｃｕｌａｔｉｏｎｉｎｔｈｅｎｏｒｔｈｗｅｓｔＹｕｎｎａｎＭｉｎ－ＹｕＪＩＡ；（贾民育）Ｓｈａｏ－ＡｎＳＵＮ；（孙少安）Ａｉ－ＭｉｎＸＩＡＮＧ；（项爱民）ａｎｄＤｏｎｇ－ＺｈｉＬＩＵ（刘冬至）（...

简介：Asoneofthemostimportanturbanlifelinesystems,awaterdistributionsystemcanbedamagedunderastrongearthquake,andthedamagecannoteasilybelocated,especiallyimmediatelyaftertheevent.Thisoftencausestremendousdifficultiestopost-earthquakeemergencyresponseandrecoveryactivities.Thispaperproposesamethodologytolocateseismicdamagetoawaterdistributionsystembymonitoringwatcrheadonlineatsomenodesinthewaterdistributionsystem.Anartificialneuralnetwork-basedinverseanalysismethodisdevelopedtoestimatethewaterheadvariationsatallnodesthatarenotmonitoredbasedonthewaterheadvariationsatthenodesthataremonitored.Themethodologyprovidesaquick,effective,andpracticalwaytolocateseismicdamagetoawaterdistributionsystem.

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简介：二大地震苏门答腊向西北发生在海，印度尼西亚，在12月26,2004日并且在云南的水层次的3月29,2005日.The观察关于纸论述的二earthquakes.This产出丰富的信息对在云南的二地震的水水平反应并且做初步的analysis.It被观察大导致地震的反常的水水平变化能更好，这由模拟记录比记录了由数字recording.The大引起地震的水水平上升

简介：Inordertoinvestigatetherelationbetweenthewatercontentchangingofsurfacesoilandmicro-quakerecordedbeforeearthquakes,wecarriedoutasimulationexperimentinlaboratory.Itspurposeistoexplorewhethertheacousticwavegeneratedbymicro-fracturingbeforeearthquakeareabletochangewatercontentofsurfacesoil,soastounderstandtherelationbetweenthermalanomalyintheremotesensingimagegotfromtheseismogenicareaandthecomingearthquake.Theresultoftheexperimentshowsthatwhentheacousticwaveentersintothesurfacesoilthewatercontenthereincreasesonthebackgroundofdecreasingduetonaturalevaporation.Inthemeantime,temperatureheredecreases.

简介：Inthispaper,thelongtimeseriesdataofthewellwater-leveldataof12wellsintheSichuanandYunnanareaisanalyzedbytheBaytap-Gtidalanalysissoftware,andwellwaterleveltidalresponsecharacteristicparameters(amplituderatioandphasechange)areextracted.Weanalyzedthefeaturesoftheshapeandstagechange,andcharacteristicparametersofthetidalresponseofwellwaterlevelbeforeandaftertheearthquakes,whichcanprovideanewmethodandapproachtoanalyzingtheresponserelationshipsbetweenwellwaterlevelandearthtideandbarometricpressure.TheresultsshowthatLuguhuWelland9otherwellsareaffectedbyearthtides,andtheirwellwaterlevelamplituderatiosandphasesarerelativelystable;theNanxiWellandDayaoWellwaterlevelchangesareaffectedbythebarometricpressurecombinedwithtideforce,andtheirwellwaterlevelamplituderatiosandphasesaremorediscrete.ThewaterlevelamplituderatiosandphasesofJiangyouWell,LuguhuWellandDongchuanWellaresignificanttolargeearthquakes,andtherelationshipbetweenseismicenergydensityandwaterlevelamplituderatiosandphasesofM_2waveofthethreewellsarepresented.

简介：Inthisstudy,weanalyzetheco-seismicresponseofwaterlevelsintheJiajiwelltostrongearthquakes(MS≥7.8)from2001to2010atanepicentraldistancelessthan8000km.Weinvestigatedtheco-seismicvariationformofwaterlevels,andanalyzedtherelationshipbetweentheamplitudeofwaterlevelvariationandthemagnitudeandtheepicentraldistance.Wethencheckedtheseismicwavephaseswhenthechangesofwaterleveloccurred.Itwasshownthat:(1)thewaterlevel'sco-seismicresponseismainlycharacterizedbyescalationwithnooscillation;(2)theamplitudeofwaterlevelchangehasacertainconnectionwithepicentraldistanceandmagnitude;(3)co-seismicresponseofwaterlevelsintheJiajiwellshowsacertaindirectivity;(4)mostoftheco-seismicresponseswerecausedbysurfacewaves,andsomebylong-periodSwaves.

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：基于前辈的研究，并且对比与水水平和一个好含水土层的系统的水温度反应特征装载的应力的模式，这份报纸在装载的应力的三个模式引起的一口井在水温度回答的机制上得出一个初步的结论，即煤气的逃跑，为装载的有弹性的震波应力加热分散和冷水穿入机制；为装载的震波应力的破裂渗出物机制和为长时期的压力消散的热机制减缓在地震准备阶段装载的应力。这份报纸为装载的应力的每个模式说明典型观察例子并且在他们的机制上做初步的研究。

简介：Basedonlinearporoelasticandhydrogeologytheory,amathematicalexpressiondescribingtherelationshipbetweenwaterlevelchangeandaquifervolumestrainisputforward.Combinedwithearthtidaltheory,weanalyzetheresponsecharacteristicsfromwell-aquiferwaterlevelchangetoearthtideofvolumestrainandpresentamethodofvolumestraininversionfromwaterlevelchange.Comparingtheresultsofinversionwithrealobserveddata,wefoundthatthereisagoodconsistency.Thissuggeststhatthemethodofvolumestraininversionfromwaterlevelchangeisproper.Itwillofferareferenceforlearningabouthydrogeologycharacteristics,volumestrainandsearchingforprecursoranomalies.

简介：在一口深井的水水平立即对地球的潮和气压作出回应，并且因此，不是仅仅以振幅而且在阶段变化落后。因此，分阶段执行落后修正在在作者在修正方法在为短期的地震先锋的异常变化的鉴定是有效的这纸表演介绍的东方China.Calculation结果分析数字地下水观察数据被使用。修正方法能也被用于处理观察变丑并且倾斜数据。

简介：Amodelofdoublemediumaquiferisbrieflyintroducedinthispaper,apartialdifferentialequationaboutseepagemotionderivedbythetidalstressinthemodellayerisdeduced.ComparedthisequationwithBoultonequationusedintheunconfinedaquifer,anewlaggingsupplywatertermisobtained,whichestablishthephysicalbasisforinterpretingthephasedelayphenomenaofwellwaterlevelcausedbythesolidtide.Byanalyzingthepartialdif-ferentialequation,itisfoundthatthislaggingsupplytermisrelatedwiththefluctuationoftideoccurredinthedeepaquifer.

简介：Heatflowisinevitablyaccompaniedbytemperaturechange,thus,thewatertemperaturecoseismicresponseduringearthquakeactivityshouldalsoobeythelawsofthermodynamics.TakingtheMS8.0Wenchuan,Sichuan,ChinaearthquakeandtheM9.0Tohoku,Japanearthquakeasanexample,andbasedonthedataofwatertemperaturecoseismicresponsesobservedinwellZK26inHaikou,HainanProvince,China,weinvestigatetherelationshipbetweenwellwatertemperaturechangeandheattransferinthecoseismicresponseprocessandtherelevantthermodynamicmechanismbyusingthenumericalsimulationmethodforthermodynamicequations.Then,throughforwardmodeling,weobtainseveralsimulationcurvesofwatertemperaturechangeinresponsetoearthquakesalongthewelldepthatdifferenttimes.Thesimulatedcurvesofwatertemperaturechangeapproximatelyfittheobservedcurves.Consequently,basedonthevariationoftemperature,wefindthatthemodesofwellwatertemperaturecoseismicresponse(ascending,descendingorstable)arerelatedtofactorssuchasthelocationofsensors,distributionandlocationofheatsources,thespanbetweensensorsandheatsources.

简介：WestudythefeatureofmediachangesbeneaththeZipingpureservoiranddiscusstheprocessofpermeationwiththewaterlevelriseandfallofthereservoirfromJanuary2005toJanuary2008fromambientnoisecrosscorrelationbyusingcontinuousseismicdatarecordedbythestationsofZipingpuseismicnetworkandYZPstation.Amoving-windowcross-spectrumtechniquehasbeenusedtocalculatetherelativeseismicvelocitychangesbetweenstationpairs.Resultsrevealedanobviousrelationshipbetweenrelativeseismicvelocity,andthewaterlevelchangeswithatimedelaythatmaybecausedbypermeationduringthreemainimpoundmentsandtwolargescaledisemboguements.Impoundmentgeneratesafastandlargeimpactonthesuperficiallayer,andthechangesofseismicvelocityistheresultofincreasedpressureandpermeationduringtheimpoundment.Atthefirstimpoundment,themaineffectfactorispressure.Duringthenexttwoprocessofimpoundment,permeationbecomesthemaineffectfactor,affectingthefaultatadepthofabout8km.

简介：Thenon-tidalvariationgainedfromcontinuousgravityobservationsinstationsusuallyreflectstheregionalcontinuousgravitychanges.Inthispaperwefocusonstudyingthenon-tidalvariationofBaijiatuanstation,Beijingwheretherearetwodifferentgravimeters(namely,L&R-804andPET-031).Basedontheoriginalrawtidalrecordsoftwogravimetersfrom2008to2011,wefirstremovevariousinterferencefromrawdatabythestandardproceduresoftware-Tsoft;thenwemodelthesolidearthtides,oceantidalloadingandpoletidethroughrelatedparameters;afterthatweadoptanewsegmentedpolynomialfittingmethodbasedonTsofttofitthecomplexdriftofspringgravimeter;andfinallywecalculatetheatmosphericloadingeffectsbyalinearregressionmodel.Afteraseriesofprocessingwegainthenon-tidalvariationofthetwogravimetersatBaijiatuansite,Beijing.Furthermore,toanalyzethenon-tidalvariationpreliminarily,westudythemaincomponentofrelatedtidaldatabypowerspectraldensity.Comparingthenon-tidalvariationoftwodifferentgravimeters,wefindseasonalfluctuationsinnon-tidalresults,whichareinaccordancewiththewaterstoragechange.Therefore,wetakeintoaccounttherelevanceofgravitychangesandwaterstoragebasedonthegravitydataofGRACEandwaterdataoftheCMAPmodelfrom2003to2011atdifferentsitesintheChinesemainland(Beijing,Chengdu,ShenyangandShiquanhe),andmakeapreliminaryanalysisontherelationshipbetweengravitychangesandwaterstorage.