水准在地铁一等高程控制网中的应用1

东华理工大学长江学院毕业论文题目：水准在地铁一等高程控制网中的应用英文题目：TheapplicationofLevelingintheMTRoffirst-classheightcontrolnetwork东华理工大学长江学院毕业论文摘要摘要地铁工程一等高程控制网是城市地铁工程施工的高程控制基准。地铁工程施工周期长、精度要求高，必须对高程控制网的布置有严格要求，同时还要具有精密的测量仪器设备、严谨的水准测量过程和科学的测量数据处理，以保证城市地铁工程施工所需高程控制点的精度。本文根据南昌市地铁工程一等高程控制网布设的实际情况，分析网形设计、实地选点、控制点制作、水准测量、数据平差以及精度评价等主要过程，通过DiNi11水准仪验证该控制点在覆盖范围内的，精度等测量方面都能满足地铁工程建设的需要，可以投入地铁一号线施工建设中。为地铁新线的顺利建设进行提供了保障，并结合在工程中的实际使用效果，对工程一等高程控制网在地铁中控制点布设、水准测量、内业整理及精度评定的进一步优化提出了个人建议。关键词：城市地铁；地铁一等高程控制网；水准；精度东华理工大学长江学院毕业论文ABSTRACTABSTRACTSubwayProjectFirstVerticalControlNetworkisametroconstructionofverticalcontrolbenchmarks.Subwayconstructioncyclelength,highprecisionelevationcontrolnetworkmustbearrangedwithstrictrequirements,butalsowithsophisticatedmeasuringequipment,rigorousscientificstandardsofmeasurementandthemeasurementdataprocessing,toensurethattheurbansubwayconstructionElevationcontrolpointsrequiredaccuracy.Thisfirst-classsubwayundertheNanchangHeightControlNetworkoftheactualsituationofgraphicdesign,siteselectionpoint,controlpointproduction,qualitymeasurement,dataevaluation,adjustmentandaccuracyofthemainprocessofvalidationbyDiNi11Levelcontrolpointinthecoverageoftherange,precisionmeasurementscanmeettheneedsofmetroconstruction,subwayconstructioncouldbeputintoconstruction.Forthenewsubwaylinetoprovideaguaranteeforthesmoothconstruction,combinedwiththepracticaluseinengineeringresults,heightcontrolontheprojectfirst-classnetworkofcontrolpointsinthesubwaylayout,leveling,finishingwithintheindustryandtheAccuracyEvaluationforfurtheroptimizationproposedapersonalrecommendation.Keywords:subway;MetroFirstVerticalControlNetwork;standards;accuracy东华理工大学长江学院毕业论文目录目录绪论........................................................................................................错误!未定义书签。1.1城市地铁简介..........................................................................错误!未定义书签。1.2高程控制网的发展概况..........................................................错误!未定义书签。1.3高程控制网的主要研究内容..................................................错误!未定义书签。2.测量资料收集...................................................................................错误!未定义书签。2.1测区概况..................................................................................错误!未定义书签。2.2地铁路线..................................................................................错误!未定义书签。2.3起算资料..................................................................................错误!未定义书签。2.3.1高程系统.......................................................................错误!未定义书签。2.3.2控制网等级....................................................................错误!未定义书签。2.3.3已有高程控制点资料....................................................错误!未定义书签。2.3.4点位分布情况................................................................错误!未定义书签。3.高程控制网布设...............................................................................错误!未定义书签。3.1设计单位对高程控制网的要求..............................................错误!未定义书签。3.2高程控制网总体布设方案.....................................................错误!未定义书签。3.3高程控制网的布设...............................................................错误!未定义书签。3.3.1水准网的图上设计.......................................................错误!未定义书签。3.3.2水准点的选定...............................................................错误!未定义书签。3.3.3水准标石的埋设...........................................................错误!未定义书签。3.4高程控制网点位概况...........................................................错误!未定义书签。4.水准测量...........................................................................................错误!未定义书签。4.1DINI11电子水准仪的检验......................................................错误!未定义书签。4.1.1DiNi11电子水准仪器检验...........................................错误!未定义书签。4.1.2精密水准尺的检验.......................................................错误!未定义书签。4.2水准测量原理..........................................................................错误!未定义书签。4.3水准测量限差..........................................................................错误!未定义书签。4.4水准测量作业规定..................................................................错误!未定义书签。4.5跨河水准测量..........................................................................错误!未定义书签。4.6实例分析..................................................................................错误!未定义书签。5.误差来源与改正...............................................................................错误!未定义书签。5.1水准标尺长度误差改正..........................................................错误!未定义书签。5.2正常水准面不平行的改正......................................................错误!未定义书签。6.数据处理...........................................................................................错误!未定义书签。6.1外业成果的记录整理..............................................................错误!未定义书签。6.2环线闭合差的计算..................................................................错误!未定义书签。6.3每公里水准测量偶然中误差的计算......................................错误!未定义书签。6.4平差计算..................................................................................错误!未定义书签。东华理工大学长江学院毕业论文目录6.5精度评定..................................................................................错误!未定义书签。6.6上交成果...................