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Keywords: tunnel collapse separately
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Proceedings Papers

Paper presented at the ISRM SINOROCK 2013, June 18–20, 2013
Paper Number: ISRM-SINOROCK-2013-106
... and surrounding rock strength, and the whole failure process of small spacing tunnels is successfully simulated in the calculations. Some conclusions can be drawn from the calculations. Firstly, when the tunnel spacing is small, the surrounding rock above each tunnel collapse separately at first, while...

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