We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
复杂艰险山区铁路勘察设计阶段航空摄影 多源数据获取研究.
- Authors
何颖博
- Abstract
As a technical mean to quickly obtain large-scale terrain data, aerial photography plays an important role in railway survey and design stage. In order to improve the accuracy of data acquisition and shorten the photography period as much as possible in the survey and design stage of railway in complex and dangerous mountainous areas, this paper took a railway in the western region as an example to study the way to effectively combine five types of flight platforms including manned fixed wing aircraft, manned gyroplane (helicopters for example), unmanned gyroplane, unmanned fixed wing aircraft, vertical take-off and landing fixed wing UAV, and three types of sensor system including digital photography system, airborne LiDAR photography system and oblique photography system for the further work. The research shows that: (1) Different photography methods should be adopted in different stages considering different situations and purposes. The manned or unmanned aerocrafts should be complementary for the various survey areas; (2) A single photographing method can not only be considered for a single application, but also for multiple data applications and data complementary while route planning. The result shows that: by using the comprehensive scheme of aerial photography multi-source data acquisition in the railway survey and design stage in complex and dangerous mountainous areas, taking a railway project in the western mountainous areas for the example, the direct cost of photography is reduced by more than 25%, some parts of the field work are reduced by more than 40%, and the result data meets different need and the utilization rate of the results reaches 150%. This solution has advantages of fine cost management, small amount of field work, high quality of aerial photography results and diversified data application, which can provide reference for similar engineering applications in the future.
- Subjects
AERIAL photography; AIRPLANES; DIGITAL photography; RAILROAD design &; construction; VERTICALLY rising aircraft; COST control
- Publication
Railway Investigation & Surveying, 2022, Vol 48, Issue 4, p41
- ISSN
1672-7479
- Publication type
Article
- DOI
10.19630/j.cnki.tdkc.202104270003