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1、第一篇GlobalMapper在新建铁路前期选线中的应用摘要：新建铁路项目前期选线过程中，快速建立研究区域内的DEM尤为重要，而前期方案研究常因缺少矢量化地形图而使项口受阻，GM恰可利用免费的全球SRTM高程数据生成等高线并创建DEM。同时，GM述可以输出研究区域内可视化、真实的三维地形，直观展示出地形变化特点，方便前期方案展示与决策。从创建DEM和三维地形可视化两个方面阐述GM软件在新建铁路项目前期研究中的应用过程，并以实际项目证明软件的应用价值，最后分析其应用过程中存在的问题，指出其发展方向。关键词：铁路选线；GlobalMapper；数字高程模型；三维地形可视化Applicationof
2、GlobalMapperinPreliminaryRouteSelectionofNewRailwayAbstract:thenewlybuiltrailwayprojectprophaselineselectionprocess,butquicklybuiltDEMisespeciallyimportantinstudyarea,andpreliminaryschemeresearchoftenduetothelackofvectortopographicmapandmaketheprojectisblocked,theGMjustcanusefreeglobalSRTMelevationd
3、atatogeneratecontourandcreateDEM・Atthesametime,GMalsocanoutputwithinthestudyareavisualization,real3dterrain,intuitivedisplaycharacteristicofterrainchanges,convenientpreliminaryschemeanddecisionmaking.FromcreatingDEMand3dterrainvisualizationtwoaspectselaboratedtheGMsoftwareapplicationinthenewlybuiltr
4、ailwayprojectprophaseresearchprocess,andtheapplicationvalueoftheactualprojectprovesthatthesoftware,andfinallyanalyzetheproblemsexistingintheapplicationprocess,andpointsoutitsdevelopingdirection.Keywords:railwaylocation；globalmapper；digitalelevationmodel；thevisualizationof3Dterrain第二篇Googleearth三维可视化
5、在滇藏铁路林芝一拉萨段地质选线中的应用摘要：以滇藏铁路林芝一拉萨段为例，利用Googleearth对两拟选线路方案沿线的活动断裂，滑坡、泥石流、崩塌等地质灾害进行遥感解译，并制作三维飞行动画。研究发现北线方案主要受泥石流影响，南线方案活动断裂、滑坡、崩塌、泥石流均较发育，从工程地质条件来看北线优于南线。关键词：Googleearth；滇藏铁路；三维可视化；工程地质选线ApplicationofGoogleearthintheDesignofLinZhi—LashaselectionofYunan-TbetrailwayAbstract:Yunnan-tibetrailwaytoTibet・Lh
6、asasectionasanexample,usingGoogleearthtochooseboththeactivefaultsalongtherouteplan,landslide,debrisflow,collapseandothergeologicaldisastersinremotesensing,andanimation3dflying.Studieshavefoundthatthenorthernschemewasmainlyaffectedbydebrisflow,thedowntownprojectactivefaults,Iandslide,collapse,debrisf
7、lowarethedevelopment,fromtheengineeringgeologicalconditionsthenorthernlineisbetterthanthedowntown.Keywords:Googleearth;Yunnan-tibetrailway;thevisualizationof3Dterrain;engineeringgeoligiclocationofline
