Analysis and application of 3D remote sensing interpretation system in railway

Research purposes: Some unfavourable geological conditions, such as landslide and debris flow, which had important influence on the track alignment, were difficult to be identified under the 2D interpretation system. The 3D remote sensing interpretation technique can make it easier, but the professional interpretation software was still lack, and needed to be studied quickly. Research conclusions: (1)Combined with the production demand of the railway survey and design stage, using the C #. Net language and the C/S structure, we developed the 3D remote sensing interpretation and quantitative analysis system. (2)It can realize the three dimensional interpretation and quantitative analysis of unfavourable geological conditions, furthermore, the unified management of field data, and the function of multi-type data output and drawing. (3)The software has been applied to survey the unfavourable geological conditions along the Taiyuan-Jiaozuo railway, 27 landslides, more than 50 faulted structures, 17 unstable rocks, and 4 slumped deposits were checked out with the average accuracy rate of 80 percent. The results indicate that the application of the software have effectively improved the accuracy and efficiency of the remote sensing interpretation, and provided a reliable basis for the engineering geological alignment. © 2016, Editorial Department of Journal of Railway Engineering Society. All right reserved.