Digital close-range photogrammetric application to small-scale physical simulation experiment
In order to research the possibility of digital close-range photogrammetric surveying in small scale physical simulation experiment, physical model coinciding with engineering practice was constructed based on similar theory. The datum processing method and surveying precision of digital close-range photogrammetric were analyzed. And the function relationship between overburden subsidence factor qr and the ratio z/H of stratum horizon z and mining depth H was researched. The results show that surveying points position mean error along horizontal direction is ±0.131 mm and vertical direction is ±0.192 mm. Therefore, multi-taking station cross direction digital close-range photogrammetric can completely satisfy the precision need of physical simulation experiment. And the empirical formula can be utilized to represent evolution law of stratum subsidence factor.
close-range photogrammetric physical simulation light-rays adjustment surveying precision subsidence factor
LI Chun-yi CUI Xi-min YU Yi-ju
School of Surveying and Landing Information Engineering, Henan Polytechnic University, Jiaozuo 45400 College of Geoscience and Surveying Engineering, China University of Mining and Technology,Beijing 1 Surveying and Mapping Press, Beijing 100045, China
国际会议
河南焦作
英文
681-685
2011-06-18(万方平台首次上网日期,不代表论文的发表时间)