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Keywords: unstable zone
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Proceedings Papers

Paper presented at the ISRM International Symposium on Rock Mechanics - SINOROCK 2009, May 19–22, 2009
Paper Number: ISRM-SINOROCK-2009-093
.... Comparing the induced stresses in elements surrounding the excavated opening and their strength, a safety factor is determined for rock mass surrounding the powerhouse cavern. Results obtained from evaluation of safety factor show some unstable zones around the cavern in the first & the second...

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