倾斜摄影测量在高速公路改扩建工程中的应用

Application of Oblique Photogrammetry Technology in Expressway Reconstruction and Expansion Project

摘要:

传统意义上的测绘已经不能满足信息化智能化测绘时代的需求,无人机倾斜摄影测量技术给测绘行业带来了新的技术手段。研究倾斜摄影测量技术在实际测绘生产项目中的应用流程，通过对航测相机进行检校、航测参数调整、像控点布设方案优化、数据严格检核处理等，最终获取满足规范和项目要求的测绘成果。最后将该方法应用在高速公路改扩建工程中，并对实地标志点、地面标高、雨污水井位、高速路面桥缝等特征点数据进行了残差统计和误差分析。结果表明，该方法测量成果精度可靠，解决了传统测量方式无法直接进行高速测量的问题，提高了工作效率，效果良好。

Abstract:

The traditional sense of surveying and mapping has been unable to meet the needs of the information age of intelligent surveying and mapping. The unmanned aerial vehicle (UAV) oblique photogrammetry technology has brought the new technical means to the surveying and mapping industry. The application process of oblique photogrammetry technology in the actual surveying and mapping production project is studied. Through the calibration of aerial survey camera, the adjustment of aerial survey parameters, the optimization of image control point layout scheme and the strict checking and processing of data, the surveying and mapping results meeting the specifications and project requirements are finally obtained. Finally, the method is applied to the reconstruction and expansion of expressway, and the residual error statistics and error analysis are carried out on the data of field mark points, ground elevation, rainwater and sewage well location, expressway pavement bridge joints and other characteristic points. The results show that the accuracy of the measurement results of this method is reliable, which solves the problem that the traditional measurement method is hard to directly carry out the expressway measurement, improves the work efficiency and has good effect.