Abstract
Small tunnels such as engineering geological exploratory tunnels and mine roadways are generally narrow, which make the existing photographic geological logging technique inapplicable. Therefore, geological logging of exploratory tunnels has always been taking the method of manual sketch work which has low efficiency and poor informatization degree of products, and it is a technical issue requiring urgent settlement for geological logging of small tunnels. This paper proposes and studies novel methods of photographic geological logging suitable for small tunnels, including image acquisition, image orientation control, image geometric correction, unfolded image map generation and geological attitude measurement, etc. Experiments show that the method can meet the precision requirement of geological logging. The novel method helps to realize the fast acquisition and processing of image-based geological logging data for small tunnels, and the forms of logging result are more abundant and more applicable to informatized management and application of geological logging data.
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Foundation item: Project(201508) supported by the Open Research Foundation of Engineering Research Center for Rock-Soil Drilling & Excavation and Protection (Ministry of Education), China; Project(BK2012812) supported by the Natural Science Foundation of Jiangsu Province, China; Project(KYLX_0492) supported by the University Postgraduate Scientific Research and Innovation Project of Jiangsu Province, China; Project(2014B38714) supported by the Fundamental Research Funds for the Central Universities, China
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Mao, Yf., Li, H., He, Yl. et al. A novel method of photographic geological logging based on parallel image sequence in small tunnel. J. Cent. South Univ. 23, 2092–2100 (2016). https://doi.org/10.1007/s11771-016-3265-z
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DOI: https://doi.org/10.1007/s11771-016-3265-z