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List of products by author: L. G. De Mello
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Collapse of Březno railway tunnel made by prevault (Perforex) method in the Czech Republic
Abstract: A single track railway tunnel was constructed by prevault (Perforex) method in tertiary sedimentary ground conditions as a by-pass of an open coal mine. After excavation of about half of the 1,7 km long tunnel, sudden, daylighting collapse happened and destroyed about 100 m of the tunnel with prevault shotcrete lining, leaving the excavation machine buried as the crew left to safety. Consequent...
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