摘要
介绍了数字高程模型的发展和理论基础,结合实际公路测绘工作,建立了某公路所在区域的DEM模型,得到了不同插值方法情况下的土石方量计算结果,最后将采用数字高程模型的测设方法与传统测设方法进行比较分析,结果表明,采用DEM方法进行的测设方法,其精度高、野外工作量较小、效率高,且便于方案比选。
The development and theoretical basis of digital elevation model are introduced. Combined with practical surveying and mapping of highway, DEM model is built in the area where the highway locates. The computed result of earthwork volume is obtained under the condition of using different interpolation methods. At last, a comparative analysis is made by adopting the measuring method with digital elevation model and traditional measuring method. The results show that the measuring method with DEM has high precision, high efficiency and convenient for scheme comparison.
出处
《北方交通》
2015年第9期66-68,共3页
Northern Communications
关键词
数字高程模型
DEM
公路勘察
测设
Digital elevation model
DEM
Highway investigation
Measuring
