Digital close-range photogrammetric application to small-scale physical simulation experiment

作者：Li Chun-yi^*; Cui Xi-min; Yu Yi-ju

来源：Transactions of Nonferrous Metals Society of China, 2011, 21: S681-S685.

DOI：10.1016/s1003-6326(12)61662-8

• close-range photogrammetric
• physical simulation
• light-rays adjustment
• surveying precision
• 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 q(r) 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.

• 出版日期2011-12
• 单位中国矿业大学（北京）; 河南理工大学