无砟轨道控制网网形和精度设计

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1、西南交通大学硕士学位论文无砟轨道控制网网形和精度设计姓名：付仁俊申请学位级别：硕士专业：大地测量学与测量工程指导教师：岑敏仪20080601西南交通大学硕士研究生学位论文第lI页CPI附合到CPO，采用固定数据平差，CPI控制网的点位精度提高约3倍；CPHI若分别附合到CPI和CPII上，在CPⅢ控制网的结合部，轨道平顺性指标将超限。以上结论是对现行测量规范的有效补充，对我国无砟轨道建设具有参考价值。关键词：无砟轨道；轨道平顺性；点位精度；原始数据误差西南交望查兰堡主堡窒竺兰焦笙窒蔓!!!里_一———————————————

2、———————————一一AbstractThebasicrequirementsofdesigninghigh·speedrailwayaretoensur’ethetrain’ssafe，reliableandcomfortableoperationbasedondesignedspeed．Somenewproblemswiththeconstructionofhigh．speedrailwaywillbebroughtoutbythehighspeed，whicharetheinnergeometrYsizeandth

3、eoutergeometricalsizewithballastlesstrackofpassengerdedicatedrailwayconnectedwiththeSurveyingandMappingScience．Tradionalwaysofsurveyingcann’talreadysatisfytheprecisedemandoftheballastlesstrackofpassengerdedicatedrailwavtssurveyprecision．So，weshouldfoundasuitoffavor

4、ablesurvevsystemandtheprecisecontrolnetworks．InordertolmproVetheefficiencyandsaveexpenditure，themultilevelcontrolnetworksshouldbeadopted．BecausethehighprecisionofcontrolpointslSneeded1ntracklaying，thepointspositionerrorsofcontrolnetworksshouldtaketheinitialdataerro

5、rsintoaccount．ThispaperresearchtheconfigurationandobservationpreclslonstandardsofCP0andCPIIIilluminatethemodel．ofprecisioncontrolnetworksacross—the—board，evaluationthatconsidertheimpactofinitialdataerrosdetailedly，thencomparetheadjustmentmethodsofCPIcontrolnetworks

6、baseonthismodel．IftaketheCPIcontrolnetworksasthebasiccontrolnetworksofalllevelsandtheCPIcontrolnetworksadoptthemethodsofintegrateadjustment，whichwouldresultinvervlowprecisioninmiddlepositionofcontrolnetworksbecauseoferrorscumulation，atlastimpactthetracklinetype·The

7、controlnetworksCPImaybedividedintosomesub。networksbyaddingframecontr01networksCPO，andtheCPIcontrolnetworksadoptthefixeddataadjustment，whichcouldenhancethepositionalpreclslOnofallcontrolnetworksobviously．TheCPIIIcontrolnetworks1Sthebenchmarkofpavingballastlesstracka

8、ndtheprecisiono．fCPIIIisthekeytechnologyofpavingballastlesstrack，duetotheimpactofinitial西南交通大学硕士研究生学位论文第1V页dataerrorsofCPIandCPIIcontrolnetworks．