现代化测绘技术在线路工程中的应用

Application of Modernization of Surveying and Mapping Technology in Line Project

为了做好交通勘察设计与线路工程建设的基础测绘工作,以现代化测绘技术在交通领域的应用为出发点,从像片控制点测量、空三加密、数字高程模型(DEM)制作、数字正射影像图(DOM)制作等方面,详细阐述了基于无人机技术的交通线路设计阶段的基础地理信息数据获取技术流程,以山西省太原市万柏林区的DEM数据为例,进行了桥隧设计中水文分析的河网提取与流域划分。该研究为推动交通领域测绘技术现代化提供了有益的探索,对线路工程的设计者、施工者和测量者均具有一定的参考意义。

In this paper, in order to preferably finish basic surveying and mapping of traffic survey and design and line project construction, by taking application of modernization of surveying and mapping technology in the transportation field as a starting point, the author detailedly expounded technique process of obtain of basic geographic information data in process of transport line design based on unmanned aerial vehicle technology from aspects of photo control survey, aerial triangulation,digital elevation model（DEM） production and digital orthophoto map（DOM） production. Then, by taking DEM data of Wanbailin District, Taiyuan, Shanxi province as an example, the author conducted river network extract and drainage basin division of hydrological analysis in bridge and tunnel design. This research provided a useful exploration for promoting the modernization of surveying and mapping technologies in transportation field, which has certain references significance for designers, constructors, and surveyors of line projects.