List of products by author: G. Questi

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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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