“井”型航线在土地工程测图中的应用研究

Research on aerophotogrammetry mapping of well-shaped route planning applied in land engineering

大比例尺地图广泛应用于土地工程建设的整个过程中,它可以通过常规航测成图和无人机测图获得。本文以无人机航测1∶2 000地图为例,选取有代表性的陕西省合阳县龙亭镇黄河滩涂地和陕西省彬县姚联镇黄土沟壑地貌,研究了"井"字型航线设计对成图精度的影响,在两个实验区各选取30个点检测DLG和DOM精度,检测结果符合《工程测量规范》的精度要求,满足土地工程建设中对大比例尺数据的需要;无人机测图以外业投入少、生产周期短、生产效率高等优点,在土地工程建设过程中具有广阔的应用前景。

The large scale map is widely applied in the entire process of land engineering construction,it can be obtained through the conventional aerophotogrammetry mapping and Unmanned Aerial Vehicle aerophotogrammetry mapping.In this paper,taking the aerial survey with the proportion of 1∶2 000 of the Unmanned Aerial Vehicle as an example,the selection of typical Loess Plateau-gully Region in Longting town of Heyang county of Shaanxi Province and the Yellow River wetland in Yaolian town of Bin county of Shaanxi Province,the key research on well-shaped route planning influence on accuracy about drawing,selected 30 points in each of the two areas for detection of DLG and DOM accuracy.And the test results meet the requirements of The Measurement Code of Engineering,it can meet the engineering foundation land exploration for large scale data.Because of the lesser investment,short production cycle,high production efficiency and so on,the Unmanned Aerial Vehicle aerophotogrammetry mapping has a broad application prospect in the exploration of engineering foundation.