摘要
经济建设的发展必然对公路建设的发展规划、测设手段、装备等提出变革的要求。加快公路设计速度主要靠自动化,而地形资料的数字化(即数字地面模型DTM)是公路设计自动化的不可缺少的工具。本文建立了在取样及数据处理上始终考虑到公路设计及线型工程特点的DTM;编制了人-机配合设计纵断面程序,计算各种地质类型的土、石方程序,利用计算机联绘图机绘制任意长度的纵断面图、平面图、指定桩号的横断面图、透视图绘制程序,并用实际资料验证了程序的正确性。研究与试验表明:DTM用于公路设计不仅可行,且大有潜力可挖。
Economic development necessarily requires changes to be made in highway planningand the means of surveying and designing in highway building. To speed up the designingprocess in highway construction, one mainly depends upon automation, in which thedigitization of terrain information (or DTM) is an indispensable part. This paperestablished a DTM which has taken highway designing and the characterstics of a linearproject into consideration in terms of sampling and data processing. It gives a man-machine interactive designing profile and programmes for computing the cubic meters ofearthwork and stonework of different geological structures and for drawing profiles,plans, the cross sections of specific piles, and perspective graphs of any length. At theend of the paper, experimental data have been given to show the correctness of theprogrammes. There results indicate that the application of DTM in highway designingis not only feasible but has great potentiality.
出处
《武汉测绘科技大学学报》
CSCD
1989年第3期9-17,共9页
Geomatics and Information Science of Wuhan University
关键词
DTM
公路设计
数字地面模型
digital terrain model
profile
cross section
perspective graph
