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Keywords: permanent support
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Proceedings Papers

Paper presented at the 45th U.S. Rock Mechanics / Geomechanics Symposium, June 26–29, 2011
Paper Number: ARMA-11-148
... by the distance between the two existing tunnels the minimum width of the pillar between the caverns is only 8 m. Typical Norwegian concept of tunnel supporting was used in the rock support design, which means to use shotcrete and rock bolts as the permanent support. The design was based on empirical approach...

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