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Keywords: multi-arch tunnel
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Proceedings Papers

Paper presented at the ISRM SINOROCK 2013, June 18–20, 2013
Paper Number: ISRM-SINOROCK-2013-124
...-interval is excavated, and the excavated tunnel and the rock pillar between two tunnels are easy to be destroyed, so special design and construction requirement are asked. But its cost is only half of multi-arch tunnel, excavation method is simpler and construction period is shorter, moreover, it can...

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