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Publications tagged with [weak zones]
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<p>The most challenging rock mass conditions in hard rock subsea tunnels are represented bymajor faults/weakness zones. Poor stability weakness zones with large water inflow can be particularly problematic. At the pre-construction investigation stage, geological ...
Filed under:
Tunnel Engineering -
Tunnel Design
Reference:
Strait Crossings 2013 16. – 19. June, Bergen, Norway
This paper presents the methodology used to characterise the weaker zones of Le Perthus tunnel. Two phase investigation, one with in situ and laboratory testing and second with pilot tunnel.
Filed under:
Tunnel Engineering -
Tunnel Investigation
Reference:
Tunelling under difficult conditions. 1-901808-01-7. ITC, London 1997