期刊
SENSORS
卷 21, 期 12, 页码 -出版社
MDPI
DOI: 10.3390/s21124227
关键词
construction site monitoring; physical progress; unmanned aerial vehicles; photogrammetry; BIM 4D
资金
- CONICYT [CONICYT-PCHA/International Doctorate/2019-72200306]
This research proposes a method for recording the actual progress of a construction site through manual operation of UAVs and the use of point clouds obtained under photogrammetric techniques, which is then compared with actual progress in a 4D BIM environment. The results demonstrate the effectiveness of this method for UAV operation and monitoring actual progress.
The physical progress of a construction project is monitored by an inspector responsible for verifying and backing up progress information, usually through site photography. Progress monitoring has improved, thanks to advances in image acquisition, computer vision, and the development of unmanned aerial vehicles (UAVs). However, no comprehensive and simple methodology exists to guide practitioners and facilitate the use of these methods. This research provides recommendations for the periodic recording of the physical progress of a construction site through the manual operation of UAVs and the use of point clouds obtained under photogrammetric techniques. The programmed progress is then compared with the actual progress made in a 4D BIM environment. This methodology was applied in the construction of a reinforced concrete residential building. The results showed the methodology is effective for UAV operation in the work site and the use of the photogrammetric visual records for the monitoring of the physical progress and the communication of the work performed to the project stakeholders.
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