TUNNEL STRUCTURES (TUNNELLING)
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BTTUNNELLING (CIVIL ENGINEERING)
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UDC624.19.01
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Descriptor GERTUNNELBAUTEN
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Descriptor ENGTUNNEL STRUCTURES (TUNNELLING)
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Descriptor FRETUNNELS (GÉNÉRALITÉS)
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Variant GERBAUTEN/TUNNELBAUTEN
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Variant GERTUNNEL (ALLGEMEIN)
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Variant ENGTUNNELS (IN GENERAL)
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Variant ENGSTRUCTURES/TUNNEL STRUCTURES (TUNNELLING)
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Variant FRESTRUCTURES DES TUNNELS (GÉNÉRALITÉS)
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NTUTILITY TUNNELS (TUNNELLING)
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NTTUNNELS ACCORDING TO LOCATION
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NTTRAFFIC TUNNELS (TUNNELLING)
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RTPRESSURE TUNNELS + FREE-FLOW TUNNELS (HYDRAULIC STRUCTURES)
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RTGALLERIES + ROADWAYS + LEVELS + DRIFTS + DRIVES + DRIFTING + DRIVING (MINING)