基于实景三维模型的公路改扩建勘察现场设计研究

Research on the Design of Highway Reconstruction and Expansion On-site Survey Based on Real Scene 3D Model

本文指出公路改扩建工程的现场勘察具有非常重要的意义,利用实景三维模型可以有效支撑工程后续的设计与施工。为此,本文首先对勘察实景三维系统的软硬件构建结构及可能的应用成果进行汇总;其次从标准点设置、精度评定以及实景三维模型构建的具体过程与方法进行了分析;最后通过对工程实例的分析,探讨了公路改扩建勘察现场设计的具体应用。

This paper points out that the on-site survey of highway reconstruction and expansion project is of great significance,and the utilization of real scene 3D model can effectively support the subsequent design and construction of the project.To this end,firstly,the hardware and software construction structure and possible application results of the 3D system are summarized in this paper;secondly,this paper analyzes the process and method of standard point setting,precision evaluation and real scene 3D model construction;finally,through the analysis of engineering examples,the concrete application of highway reconstruction and expansion on-site survey design is discussed.