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47 个结果
  • 简介:摘要现如今,随着我国经济的发展和进步,而我国的地质工程获得了非常好的发展,采用的各种技术有所提升,在地质项目中实现的勘察测绘工作具备非常强的专业性,并且整个操作过程十分复杂,涉及内容较多,如今经济的发展让各个领域对工程地质勘察测绘工作需求不断提升,在这样的发展背景下,地质测绘技术水平需要切实提升,保证先进的技术水平才能够满足工程项目的实际需要,文章将会对地质勘察测绘工作中采用的GPS技术进行简要分析,此技术的应用对我国地质工程项目的发展起到了至关重要的作用,希望文章的相关论述能够有所借鉴作用,以供参考。

  • 标签: GPS技术 地质工程 勘察测绘 应用
  • 简介:摘要近年来,随着我国社会经济的快速发展以及城镇化水平的不断提升,使得建筑工程的数量和建筑工程的规模也在不断增加。在建筑工程建设过程中,建筑工程测量是重要的环节之一。随着GPS技术的发展与完善,GPS技术被广泛的应用于各个领域之中,并且取得了十分显著的效果。在建筑工程测量过程中应用GPS技术能够在很大程度上提升建筑工程测量的效率和精确度,并且能够使建筑工程测量更加智能化,这可以有效缓解工作人员的工作压力,保障测量的准确性。既有助于提升建筑工程的整体水平,也有助于提升建筑工程的整体质量。

  • 标签: GPS技术 建筑工程 测量 应用分析
  • 简介:【摘要】在现代化社会的发展中, GPS控制测绘技术作为一种新兴技术,在很多行业中得到广泛应用,尤其在地理信息系统中发挥着重要作用,有利于提高地理信息测量的整体效率,为行业发展提供数据支持,文章主要对 GPS控制测绘技术在地理信息系统中的应用进行研究。

  • 标签: GPS控制测绘技术 地理信息系统 应用
  • 简介:Weanalyzed360permanentandcampaignGPSdatafrom1999to2017inthesouthernSichuan-Yunanblock,andobtainedcrustalhorizontaldeformationinthisregion.Then,wederivedthestrainrateusingamulti-scalesphericalwaveletmethod.ResultsrevealacomplexpatternoftectonicmovementinthesouthernSichuan-Yunnanblock.ComparedtothestableEurasianplate,themaximumrateofthehorizontaldeformationinthesouthernSichuan-Yunnanblockisapproximately22mm/a.TheXiaojiangfaultshowsasignificantlylowerdeformation—aleft-lateralstrike-slipmovementof9.5mm/a.TheHonghefaultclearlyshowsacomplexsegmentaldeformationfromthenorthtosouth.ThenorthernHonghefaultshows4.3mm/arightstrike-slipwith6.7mm/aextension;thesouthernHonghefaultshows1.9mm/arightstrike-slipwith1.9mm/aextension;thejunctionzoneintheHongheandLijiang–Xiaojinhefaultsshowsanobviousclockwise-rotationdeformation.Thestraincalculationresultsrevealthatthemaximumshear-strainrateinthisregionreaches70nstrain/a,concentratedaroundtheXiaojiangfaultandatthejunctionoftheHongheandLijiang–Xiaojinhefaults.Wenotethatmostoftheearthquakeswithmagnitudesof4andabovethatoccurredinthisregionwerewithinthehighshearstrain-ratezonesandthestrainrategradientboundaryzone,whichindicatesthatthemagnitudeofstrainaccumulationiscloselyrelatedtotheseismicactivities.Comparisonofthefastshear-wavepolarizationdirectionoftheupper-crustwiththeupper-mantleanisotropyandthedirectionofthesurfaceprincipalcompressivestrainrateobtainedfromtheinversionoftheGPSdatarevealsthatthedirectionofthesurfaceprincipalcompressivestrainisbasicallyconsistentwiththefastshear-wavepolarizationdirectionoftheuppercrustanisotropy,butdifferentfromthepolarizationdirectionoftheuppermantle.OurresultssupportthehypothesisthattheprincipalelementsofthedeformationmechanisminthesouthernSichuan-Yunnanblockaredeco

  • 标签: GPS DATA CRUSTAL horizontal deformation extension
  • 简介:【摘要】随着社会的不断发展, GPS技术应用范围也逐渐扩大。在进行土地勘测工作中,通过 GPS网络 RTK定位系统可以明确地 对土地情况进行测量,该技术具有精准性高、自动化以及高效益的特点,受到科技工作者的广泛认可。论文 针对 GPS定位系统在土地勘测工作的实际应用展开分析工作。

  • 标签: GPS网络 RTK技术 土地勘测 实际应用
  • 简介:摘要GPS就是我们所熟知的卫星定位系统,主要是依靠卫星实现全球内的定位,而且自身具有非常高的保密性和准确性,能够在很多恶劣条件下进行定位。现如今,GPS已经逐渐地出现在土地测绘和地籍控制当中,成为帮助土地测绘和地籍控制的重要方法。

  • 标签: 土地测绘 地籍控制测量 GPS 正确运用
  • 简介:ThelinkbetweenthecrustaldeformationandmantlekinematicsintheTibetanPlateauhasbeenwellknownthankstodenseGPSmeasurementsandtherelativelydetailedanisotropystructureofthelithosphericmantle.However,whetherthecrustdeformscoherentlywiththeuppermantleintheShan-Thaiterrane(alsoknownastheShan-Thaiblock)remainsunclear.Inthisstudy,weinvestigatethedeformationpatternsthroughstrainratetensorsinthesoutheasternTibetanPlateauderivedfromthelatestGPSmeasurementsandfindthatintheShan-Thaiterranetheuppercrustmaybecoupledwiththelowercrustandtheuppermantle.TheGPS-derivedstrainratetensorsareinagreementwiththeslippingpatternsandratesofmajorstrike-slipfaultsintheregion.Themostprominentshearzone,whoseshearstrainratesarelargerthan100×10^–9a^–1,isabout1000-km-longinthewest,trendingnorthwardalongSagaingfaulttotheEasternHimalayanSyntaxisinthenorth,withmaximumrateofcompressivestrainupto–240×10^–9a^–1.AsecondaryshearzonealongtheAnninghe-XiaojiangFaultintheeastshowssegmentedshearzonesnearseveralconjunctions.WhilethestrainratealongRRFisrelativelylowduetothelowsliprateandlowseismicitythere,inLijiangandTengchongseverallocalshearzonesarepresentunderanextensionaldominatedstressregimethatisrelatedtonormalfaultingearthquakesandvolcanism,respectively.Furthermore,bycomparingGPS-derivedstrainratetensorswithearthquakefocalmechanisms,wefindthat75.8%(100outof132)oftheearthquakeT-axesareconsistentwiththeGPS-derivedstrainrates.Moreover,wefindthattheFastVelocityDirection(FVDs)atthreedepthsbeneaththeShan-Thaiterraneareconsistentwithextensionalstrainratewithgraduallyincreasingangulardifferences,whicharelikelyresultingfromthebasalshearforcesinducedbyasthenosphericflowassociatedwiththeobliquesubductionoftheIndiaplatebeneaththeShan-Thaiterrane.Therefore,inthisregiontheuppercrustd

  • 标签: strain rate TENSOR GPS measurement LITHOSPHERIC