摘要
论述带状地形图是地铁建设的重要基础资料,以广州地铁7号线带状地形测量为例,分析城市地铁带状测量作业过程、成图方法与产品检查等主要内容,并在广州连续卫星定位系统(GZCORS)和大地水准面精化(GZGEOID)新技术建立图根控制应用上进行了尝试。实践表明,该方法取得比传统图根测量更好的效果,提高测图效率,为地铁规划设计、征地拆迁、线路施工等提供可靠的、高精度的地形图资料。
Stripe map is the important material for subway construction.Taking Guangzhou subway Line 7 belt-shaped topographic survey as an example,the paper describes the surveying process,the map-forming method,the product inspection and other important aspects.New technologies of Guangzhou（GZCORS）and geoid precision（GZGEOID）were tentatively applied for the establishment of chart root control.It has been shown by practice that better results were obtained by adopting new technologies compared with those obtained by traditional chart root surveying method,the mapping efficiency being improved.The method can be applied for subway planning and design,land requisition and removal,line construction and so on to provide reliable and high accuracy topographic materials.
出处
《都市快轨交通》
2009年第2期101-104,共4页
Urban Rapid Rail Transit
