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Keywords: shotcrete layerClose
Paper presented at the ISRM International Workshop on Rock Mechanics and Geoengineering in Volcanic Environments, May 31–June 1, 2010
Paper Number: ISRM-IWVE-2010-004
... The tunnel was made by full-face mechanical excavation. Tunnel support has consisted exclu- sively of shotcrete layers. The different construc- tion stages were the following (see figure 7): PHASE vi IPHAi1E Initial stage Tunnel excavation i I i PHASE 2 I PHASE 3 Plain shotcrete layer (3 cm) 1st...
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