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Proceedings Paper

Deformation monitoring system of tunnel rocks with innovative broken-ray videometrics
Author(s): Qifeng Yu; Guangwen Jiang; Zhichao Chao; Sihua Fu; Yang Shang; Xia Yang
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Paper Abstract

An innovative broken-ray videometrics method is proposed to resolve the problem of long time monitoring of rocks' deformation in underground tunnel structures. For the deformation measurement of underground projects, the traditional measurement techniques using level gauge or theodolite can only measure one dimensional displacement. Although videometrics methods have been applied in many fields, there are often not intervisible optical paths between the positions to be measured in the underground projects. The broken-ray videometrics method we proposed can measure the orientation and position between the reference and non-intervisible target due to the intricate structure of tunnels. Broken-ray path is constructed by relay-stations between the control points on the ground and underground point to be measured. Finally, laboratory experiments were designed which showed satisfactory accuracy.

Paper Details

Date Published: 25 August 2009
PDF: 6 pages
Proc. SPIE 7375, ICEM 2008: International Conference on Experimental Mechanics 2008, 73752C (25 August 2009); doi: 10.1117/12.839212
Show Author Affiliations
Qifeng Yu, National Univ. of Defense Technology (China)
Guangwen Jiang, National Univ. of Defense Technology (China)
Zhichao Chao, National Univ. of Defense Technology (China)
Sihua Fu, National Univ. of Defense Technology (China)
Yang Shang, National Univ. of Defense Technology (China)
Xia Yang, National Univ. of Defense Technology (China)


Published in SPIE Proceedings Vol. 7375:
ICEM 2008: International Conference on Experimental Mechanics 2008
Xiaoyuan He; Huimin Xie; YiLan Kang, Editor(s)

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