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传统的数字地面模型仅表示地面的高低起伏状态,提供的信息比较单一,无法满足道路自动化和精细化设计的要求。因此,该文提出了多地层数字地面模型的概念,旨在弥补目前使用的数字地面模型在道路设计中存在的不足。文章介绍了多地层数字地面模型系统的开发及其应用,重点阐述了多地层数字地面模型在断面法土方分类的计算及成果表现上的应用,它可充分地发挥多地层数字地面模型的优势,弥补传统数字地面模型对于地质信息表达不足的缺点。通过工程实例的验证,表明该方法有良好的应用前景。
The traditional digital terrain model only represents the level of the ground ups and downs, providing a single information, unable to meet the road automation and refinement of the design requirements. Therefore, this paper proposes the concept of multi-terrestrial digital terrain model to make up for the shortcomings of the present digital terrain model in road design. This paper introduces the development and application of multi-layer digital terrain model system, and emphatically expounds the application of multi-layer digital terrain model in the calculation and achievement of section earthwork classification. It can give full play to the advantages of multi-layer digital terrain model, Make up for the shortcomings of the traditional digital terrain model for the lack of expression of geological information. Through the verification of engineering examples, it shows that this method has a good application prospect.