摘要
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.
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.
作者
LI Chun-yi1, CUI Xi-min2, YU Yi-ju3 1. School of Surveying and Landing Information Engineering, Henan Polytechnic University, Jiaozuo 454003, China
2. College of Geoscience and Surveying Engineering, China University of Mining and Technology, Beijing 100083, China
3. Surveying and Mapping Press, Beijing 100045, China
出处
《中国有色金属学会会刊：英文版》
CSCD
2011年第S3期681-685,共5页
Transactions of Nonferrous Metals Society of China
基金
Projects(41101520,41071328,51074064)supported by the National Natural Science Foundation of China
