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Consideration of Changed Attitude of Discontinuity through the Depth -Example at Honam Coal Field and Around Suwon Area-  

Lee, Byung-Joo (Geology and Geoinformation Div., Korea Institute of Geoscience and Mineral Resources)
Choon, Sun-Woo (Geotechnical Engineering Div., Korea Institute of Geoscience and Mineral Resources)
Publication Information
The Journal of Engineering Geology / v.18, no.2, 2008 , pp. 159-166 More about this Journal
Abstract
We have a question about the changing possibility of orientation of discontinuities through the depth of under-ground. To know this, the data from Honam coalfield composed of shale, sandstone and coal and Suwon area which crops out mica schist, were analyzed the discontinuities measured by BIPS and Televiewer. In Honam coalfield the orientations of joints are changed at 30-40 m depth of underground and in Suwon area they are changed around 20 m depth. To compared the results from Honanam coalfield and Suwon area, there are different rock type and geologic structure. However, the attitude of the discontinuities are changing at 20-30 m depth of underground.
Keywords
Discontinuity; Brittle deformation; Attitude of joint; Vertical change; Televiewer and BIPS;
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