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List of products by author: E. Garin
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Excavation of the Evouettes Tunnel - Lessons Learned from a jet grouting soil
Abstract: The Evouettes Tunnel is a bidirectional, single-tube, 657 m long road tunnel under construction in Wallis, Switzerland. The encountered ground conditions, comprising loose material, makes the implementation of a classical pipe umbrella stabilization method very difficult. The decision was taken to design and specify a sub horizontal jet-grouting umbrella, which allows for full-face excavation,...
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Lessons learned from design and construction of Nant-de-Drance Powerhouse
Abstract: The Nant-de-Drance hydropower scheme (900 MW), awarded "Major tunneling project of the year" prize in 2014, connects two existing artificial reservoirs. With the exception of the upper dam heightening, all works are undertaken underground. They include 16 km of tunnels, two vertical shafts of height 440m and 6 caverns. The exceptional size of the powerhouse cavern (194m x 32m x 52m), located at...
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Tunnel durability analysisusing combined advanced numerical modelling and
Abstract: Nowadays, numerical modelling is vastly used in the underground construction industry. Their capacity, nevertheless, in evaluating durability of existing tunnels has not been yet examined completely. In this context, the paper presents the advantages of cuttingedge simulation combined with instrumentation and monitoring in studying the durability of a road tunnel. After a brief description of...
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