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简介：Takingthenortheastseismiczoneasanexampleandbasedonthemagnitude-frequencydistributionprinciplesoftheG-RrelationshipandthestudyonthetemporalandspatialdistributioncharacteristicsoftheminimummagnitudeofcompletenessMCineachtimeinterval,thispapermakesastatisticalanalysisontheseismicityparametersoftheresearchareaandexplorestheinfluenceofthecompletenessofsmallearthquakedataontheseismicityparametersandseismichazardanalysis.Itshowsthatthecompletenessanalysisoftheregionalsmallearthquakesdataprovidesapossiblemeansforobtainingmoreaccurateseismicityparametersthatcanbetterrepresenttheactualregionalseismicitylevelforareasoflowseismicity.Theresearchmethodsofthisarticleanditsconclusioncanbeusedasareferenceforthecompletenessanalysisofearthquakedataandseismicactivityresearch.

简介：Three-componentOceanBottomSeismometers,portablelandstationsandmarineairgunseismicsourceswereusedtocarryoutanonshore-offshoredeepseismicprofileinnortheasternSouthChinaSea.Thisprofile,orientatedinNNW-SSE,wasaslongas500kmandperpendiculartothestrikeofregionaltectonics.TheoffshoredatawereprocessedinTaiwanOceanUniversityusinganumberofavailablesoftwareandtheonshoredatawereanalyzedinSouthChinaSeaInstituteofOceanologybynew-writtenprogramsandpublicsoftware.Preliminaryresultsshowthattheseismicdataareingoodqualityandcontainrichinformationofdeepstructure.Seismicphases,e.g.Pg,PmPandPn,areidentifiedintheoffsetrange5～220kin,whichwillprovideanimportantdatasetforthedeepcrustalstructureandoil-gasbasinevolutionstudiesofthisregion.

简介：Becauseofitsexcellentseismicperformance,reinforcedsoilretainingwallsareincreasinglyusedincivilengineering.Althoughmanycountrieshavepublishedcorrespondingdesigncodes,thedifferencesbetweenthemarestillrelativelylarge.UsingtheFHWACodeandtheCodeforSeismicDesignofRailwayEngineering(CSDRE),stabilitycalculationsofreinforcedsoilretainingwallswerecarriedoutandthesimilaritiesanddifferencesbetweenthesetwodesigncodeswereanalyzed.Accordingtothecomparativeanalysis,thefollowingconclusionsaredrawn:theinertiaforce,theearthpressureandthetensileforceofreinforcementscalculatedfromtheCSDREarelessthanthosefromtheFHWACode,andthesafetyfactorcalculatedfromtheformerislarger.AlthoughtheM-Omethodisrecommendedtocalculatethedynamicearthpressure,theFHWACodesuggestsahigheractionpointascomparedtotheCSDRE.

简介：ThecharacteristicsofseismicgroundmotionsinsouthernChinaaredifficulttodeterminestatisticallyduetoalackofstronggroundmotiondata.Inthisstudy,astochasticfinite-faultgroundmotionmodelwasadoptedtosimulatetheseismicgroundmotionsatbedrockforsouthernChina,basedonparametersderivedfromsmallandmediumearthquakesthathaveoccurredintheregion.Fromthese,theresponsespectrawasestimated.Asetofgroundmotionattenuationrelationshipswasthendevelopedbasedonsimulatedpeakgroundmotionsandresponsespectralparametersthroughregression,whichwouldbeapplicableforuseinengineeringpractice.Throughcomparisons,itwasdemonstratedthattheproposedgroundmotionrelationshipsaregenerallyconsistentwiththoseobtainedfromotherreportedgroundmotionattenuationmodelsforsouthernChina.

简介：Performance-basedseismicdesign(PBSD)aimstoassessstructuresatdifferentdamagestates.Sincedamagecanbedirectlyassociatedtodisplacements,seismicdesignwithconsiderationofdisplacementseemstobelogical.Inthisstudy,simpleformulaetoestimatethepeakfloordisplacementpatternsofeccentricallybracedframes(EBFs)atdifferentperformancelevelssubjectedtoearthquakegroundmotionsareproposed.TheseformulaeareapplicableinaPBSDandespeciallyindirectdisplacement-baseddesign(DDBD).Parametricstudyisconductedonagroupof30EBFsunderasetof15farfieldandnearfieldaccelerogramswhichtheyscaledtodifferentamplitudestoadaptvariousperformancelevels.TheresultsofthousandsofnonlineardynamicanalysesofEBFshavebeenpost-processedbynonlinearregressionanalysisinordertorecognizethemajorparametersthatinfluencethepeakdisplacementpatternoftheseframes.Resultsshowthatsuggesteddisplacementpatternshaverelativelygoodagreementwiththoseacquiredbyanexactnonlineardynamicanalysis.

简介：Anoveltechniqueforautomaticseismicdataprocessingusingbothintegralandlocalfeatureofseismogramswaspresentedinthispaper.Here,thetermintegralfeatureofseismogramsreferstofeaturewhichmaydepicttheshapeofthewholeseismograms.However,unlikesomepreviouseffortswhichcompletelyabandontheDIALapproach,i.e.,signaldetection,phaseidentification,association,andeventlocalization,andseektouseenvelopecross-correlationtodetectseismiceventsdirectly,ourtechniquekeepsfollowingtheDIALapproach,butinadditiontodetectsignalscorrespondingtoindividualseismicphases,italsodetectscontinuouswave-trainsandexplorestheirfeatureforphase-typeidentificationandsignalassociation.Moreconcreteideasabouthowtodefinewave-trainsandcombinethemwithvariousdetections,aswellashowtomeasureandutilizetheirfeatureintheseismicdataprocessingwereexpatiatedinthepaper.Thisapproachhasbeenappliedtotheroutinedataprocessingbyusforyears,andtestresultsfora16days’periodusingdatafromtheXinjiangseismicstationnetworkwerepresented.Theautomaticprocessingresultshavefairlylowfalseandmissedeventratesimultaneously,showingthatthenewtechniquehasgoodapplicationprospectsforimprovementoftheautomaticseismicdataprocessing.

简介：Thispaperpresentsthesurveyandresearchworkoftwoland-seaprofilesintheBohaiSea,China,carriedoutin2010–2011,includingtheseismicsourcesonlandandinthesea,theoceanbottomseismographs(OBS)andtheirrecovery,thecouplingofOBSandtheenvironmentnoiseinseaarea,thedataqualityofOBSs,andtheresultofdataanalysis.WefocusedontheinvestigationofcrustalstructuresrevealedbythetwoNE\EW-trendingjointland-seaprofiles.IncombinationwiththePn-velocitydistributionandgravitymagneticinversionresultsintheNorthChinaCraton,weproposethattheundulationoftheMohointerfaceintheBohaiandsurroundingareasisnotstrong,andthelithosphericthinningismainlycausedbythethinningofitsmantlepart.TheresearchresultindicatesthatobviouslateralvariationsofMohodepthandseismicvelocityappearnearbyallthelarge-scalefaultsinBohaiSea,andthereisevidenceofunderplatingandreformingofthelowercrustbymantlematerialintheBohaiarea.However,geophysicalevidencedoesnotappeartosupportthe"mantleplume"or"delamination"modelfortheNorthChinaCratondestruction.ThecrustalstructureoftheBohaiSearevealed"arelativelynormalcrustandobviouslythinnedmantlelid",localvelocityanomaliesandinstabilityphenomenainthecrust.ThesefeaturesmayrepresentacombinedeffectofNorthChina-YangtzecollisionatanearlystageandtheremoteactionofPacificplatesubductionatalatestage.

简介：为了翻新并且加强存在，放松抵抗潜在的地震损坏的强迫的石工技术(URM)结构在澳大利亚成为了一个重要问题。以便在以后的地震装载下面固定URM的表演，一个研究工程被执行瞄准了开发简单、高的力量为石工技术结构的地震翻新技术。在用电报与一种创新技术翻新的URM墙上的一系列试验性的测试系统被进行了。结果显示测试标本的力量和韧性显著地与这种技术被提高。基于不同元素方法(DEM)的一个分析模型也被开发了在翻新前后模仿URM墙的行为。模型然后被把一个震波用于墙在翻新前后在地震负担下面模仿墙行为进一步开发。

简介：Moststudiesofseismicnoisecross-correlation(NCC)havefocusedonregional/continentalscaleimagingusingempiricalsurface-waveGreen’sfunctionsextractedfromprimary(0.05–0.08Hz)andsecondary(0.1–0.16Hz)microseisms.Inthiswork,wepresenttheNCCresultsathigherfrequencies([0.5Hz)from6monthsseismicnoiserecordedbyalocalarray(*4kmaperture)deployedalongtheCalicofaultintheMojaveDesert,California.BothfastandslowpropagatingwavesareobservedfromtheNCCrecord-sections.WecomparetheNCCsfromsensorpairsthatshareacommonsensorwiththerecordsofaboreholeshotlocatedveryclosetothiscommonsensor.Theresultshowsagoodmatchoftheslowsurface-wavearrivals,indicatingthattheNCCmethodisabletorecoverunbiasedsurface-waveGreen’sfunctionsatlocalscales.Thestrongbody-waveNCCcomponentiscausedbythePwavesgeneratedoffshoreCalifornia.AlongaSW–NEprofileacrossthefault,weobserveapparentP-wavearrivalsandtheirreflections,whichcanbeexplainedbyalow-velocityzone(LVZ)alongtheCalicofault.WecalculatetheLVZwidthtobe*2.3km,andtheP-wavevelocityreductionwithintheLVZtobe*35%.TheseestimatesareconsistentwithotherevidenceforarelativelywideLVZalongtheCalicofault.

简介：Usingthefourphases(1996-1999)orre-surveyingdatafromtheGPSnetworkalongtheShanxifaultzone,therecentstateofhorizontalmovementofthefaultzoneanditsrelationwiththeDatong-YanggaoM5.6earthquake(November1,1999),whichtookplaceonthenorthendofthemonitoredarea,areanalyzed.Inthefocalregion,threeareaswithrealativelyhigherstrain(1×10^-6)apearedinXinzhouandtothenortheastofJiexiu.TheShanxifaultzoneismainlycontrolledbytheWNW-ESE-trendingcompressivestressfieldandtheNNESSW-trendingtensilestressfield,anditdoesnothavestrike-slipmovement.Whenexaminedforlong-termtendency,attentionshouldbepaidtothejuncturesbetweenthethreemovingelements.

简介：地震沉积科学用地震数据是沉积岩石和外形的学习。然而，经常，沉积身体特征不能被描述份量上由于地震分辨率的限制。高决定倒置抵消这限制并且被用于地震沉积科学在复杂地质的条件下面识别微妙的陷井，从而拓宽地震沉积科学的适用的范围。在这篇论文，基于地震沉积科学，地震控制阶段的非线性的随机的倒置被用来在Shengli油矿在Chezhen消沉预言Es3的沙的集团企业水库。厚度和在几个阶段的沙的集团企业身体的沉积微外形地图被钻介绍，几个微妙的陷井被预言并且验证。

简介：在这份报纸，我们在在向陆近海的转变区域获得的地震信号上考察速度地震检波器(VG)和加速地震检波器(AG)和他们的效果之间的差别。我们在场新一代打压电的地震检波器(LPG)并且分析它的表演。我们的地实验证明我们的新LPG能被用来代替让VG以便消除不同地震检波器系统之间的差别通常在转变区域使用了的阶段，频率和精力。关键词转变区域-颤动系统-打压电的地震检波器-频率特征-数据获得工作被国家鈥檚鈥?赞助63鈥?工程(号码2001AA602018)。首先写作LvGonghe，教授，他在1984从长春地质学研究所的石油地球物理部门毕业了，得到了B。在在1996的中国的海洋大学的海洋地质学的C，和他的Ph。在Xi鈥檃n交通大学的工程师力学的D。他的研究兴趣在在复杂区域的地震探索技术，高分辨率的地震数据获得。现在他为国家鈥?鈥?负责关于在沙滩区域鈥的高精确的地震探索技术的63鈥?工程鈥渢he研究？

简介：在过去的十年，为详细地震microzonation研究的必要性全球被认出。因此，不同途径被建立并且适用。不幸地，这些途径的多数不基于先存在是领域数据，但是要求广泛的地震大小和调查。而且，这些途径不充分地合并非线性并且不能考虑地下水水平变化。为这个目的，尤其是数字的模型是很合适的。这些模型要求本地地质的条件的好知识(特别最高unconsolidated单位)，这些单位的geotechnical参数的信息，和hydrogeological调查区域当模特儿。大多数这个信息能从已经在最浓密地占据的区域被执行了的geotechnical调查和调查被获得。在为布加勒斯特城市的案例研究，非线性的分析用基于visco发育不全的组成的法律的软件被执行。结果显示地下水水平变化在地面反应并且这样的持续时间和振幅上有重要影响应该为地震microzonation研究被考虑。这条途径能被用来显示地点效果并且识别考虑不同地震大小和地下水层次的不同microzones。

简介：这篇论文在孤立底的增强的具体大楼的地震反应的调查上报导，它在双向近差错、远差错的运动下面考虑各种各样的隔离系统参数。4-，8-，和12故事的三维的模型有在隔离系统和上层建筑的非线性的效果的孤立底的大楼被调查，并且非线性的反应历史分析被执行。合并隔离乾的变老的效果的隔离系统性质的跳的价值也被考虑，作为是在孤立底的大楼的设计和分析的实践的当前的状态。大楼的反应指示物为可伸缩重量的近差错、远差错的运动被学习代表设计地震(DE)水平和指向风险的最大的考虑地震(MCER)水平。非线性的反应历史分析的结果不为近差错、远差错的运动并且为MCER-level远差错的运动，而次要的结构的损坏在MCER-level近差错的运动。孤立底的大楼的结果与他们的改正底对应物相比。与改正底条件相比的孤立底的造显示的12故事的上层建筑反应的重要减小那基础隔离能有效地在更高的大楼里被使用提高性能。另外，一座僵硬上层建筑的适用性也调查了预言隔离乾排水量需求是。隔离乾排水量能为考虑的大楼为上层建筑用一个僵硬身体模型精确地被估计，这被发现。

简介：瓷电的设备(小便)例如当前的变压器，是批评的在过去的地震期间驱动供应系统，而是它的地震表演一直不是令人满意的。这份报纸学习小便的二种典型类型的地震表演并且基于多重调节集体dampers(MTMD)为小便建议一个抑制方法。抑制包含三个集体单位的设备的MTMD，把一个三元组称为调节质量更潮湿(TTMD)，被设计并且生产。通过饮料桌子测试和有限元素分析，PEE的动态特征被学习，抑制方法的MTMD的有效性被验证。到抑制效率的MTMD冗余的质量的不利影响被学习，相关方程被导出。MTMD坚韧性通过调整TTMD控制频率被验证。当山峰地面加速远超过设计价值时，TTMD的抑制有效性被学习。两饮料桌子测试和有限元素分析显示MTMD在attenuating小便有效、柔韧地震回答。当PGA远超过设计价值时并且当控制偏差被考虑时，TTMD仍然保持有效。

简介：Thelong-spanbridgeresponsetononstationarymultipleseismicrandomexcitationsisinvestigatedusingthePEM(pseudoexcitationmethod).Thismethodtransformsthenonstationaryrandomresponseanalysisintoordinarydirectdynamicanalysis,andtherefore,theanalysiscanbesolvedconvenientlyusingtheNewmark,Wilson-θschemesorthepreciseintegrationmethod.Numericalresultsoftheseismicresponseforanactuallong-spanbridgeusingtheproposedPEMaregivenandcomparedwiththeresultsbasedontheconventionalstationaryanalysis.Fromthenumericalcomparisons,itwasfoundthatboththeseismicspatialeffectandthenonstationaryeffectarequiteimportant,andthatbothstationaryandnonstationaryseismicanalysisshouldpayspecialattentiontothewavepassageeffect.

简介：ThecrookedseismiclinesalongvalleyswereirregularpreviouslyinFuxianofShanbei,showinganirregularbranchinplane,andhardtocompleteclosegrids.Therefore,it'sdifficulttoconductreservoirinversionof2Dseismicdata.In2001,ZhongyuanOilfieldCompanycarriedoutthestudyonfieldacquisitionmethodsandseismicprocessingtechnologyinFuxian.Straightlineswerepassingthroughplateausandformedseismicgridsbyusingflexiblegeometrywithvariablelinearbins.Dataprocessinginvolvedmodel-inversionbasedrefractionstaticcorrection,surfaceconsistentamplitudecompensation,deconvolution,andpre-stacknoiseattenuation.Astheresult,seismicdatawithahighfidelitywasprovidedforthesubsequentreservoirpredictions,small-amplitudestructureinterpretationandintegrativegeologicstudy.Becausealllineswerejointedtoformgrids,comprehensiveinterpretationofreservoirinversioncouldbefinallyimplementedbyusingthepseudologgingmethodtocontrollineswithoutwells.

简介：为了在摇晃识别模型结构参数，从地震反应搁置测试，特别从变化时间的反应记录，这份报纸由联合论述新方法论联机与外长的变量(ARX)的通过多重模型(AFMM)和离线的汽车回归的递归的适应忘记模型。首先，AFMM被采用当使遭到了到强壮的运动时，检测模型结构的反应是否时间不变或变化时间。第二，如果反应是时间不变的，形式的参数从全部反应记录被识别，例如用ARX模型的加速时间历史。如果反应是变化时间的，加速记录根据AFMM检测的精确的变化时间的点被划分成三个片断，并且参数被仅仅使用尾巴片断数据识别，它为由ARX模型的分析时间不变、适合。最后，在动态性质的变化用介绍方法论由于各种各样的强壮的运动被获得。方法的可行性和优点被鉴别一个12故事的形式的参数增强了水泥(RC)表明在摇晃的表格测试的框架结构。

简介：有关与不对称的集体分发减轻prototypal框架结构的latero扭力的地震反应的滑稽得多的任务的理论、实际的问题被接近。有对interstory飘移起作用的嵌入的magnetorheologicaldampers的V形臂章背带被用来保证另外的精力驱散。采用经由反馈管理更潮湿的特征的修正的半活跃的控制策略根据一个H2/LQG标准，实际力量被片断最佳的逻辑关于调整基于最佳的力量的选择。一个动态观察员被用来通过加速传感器的非并置的放置估计状态。包括半活跃的保护系统的设计，modelization，和实现阶段在整个复杂过程要探讨的几个方面被讨论。最后，获得减轻运动的试验性的结果在一个大规模实验室原型由地面刺激导致了，模仿一座二故事的大楼的地震反应，被总结。