简介:Thepaperstudiesthegroundverticaldeformationandthegeoidundulationcausedbyloadingofneighboringbuildings,basedontheloadingtidestheory.Theinfluenceonelevationisalsoconsidered.Theresultsshowthatthegroundverticaldeformationandthegeoidundulationbothreachmillimetermagnitude.Therefore,itisobviousthatthebuildingloadingsignificantlyaffectsthepreciseengineeringsurveying,anditmustbeseriouslyconsideredinapplication.
简介:本文介绍杭州萧山国际机场航测1:5000成图像控点连测,采用GPS快速定位技术,求得像控点的平面位置和高程,是值得今后在像控点连测作业中可取的新作业方案。