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Keywords: construction technology
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Proceedings Papers

Paper presented at the ISRM SINOROCK 2013, June 18–20, 2013
Paper Number: ISRM-SINOROCK-2013-124
... to show the design idea and construction technology. 1 Introduction Small-interval tunnel is one of the important content in Specifications of Tunnel Design for highway and means that the interval of two parallel tunnels are less than 1B (in I class surrounding rock) or 2.5B (in IV class surrounding...

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