List of products by author: T. Maeda

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  Tunnel Designed with Early Ring Closure in Squeezing Ground

  Abstract: The Hachinoshiri tunnel is a two-lane road tunnel the total length of which is 2469m. The inner section of the tunnel is designed to be 71m, for which the tunnel needs to be excavated with a cross section of 115m. Highly weathered squeezing mudstone, the unconfined compression strength, q, of which measures not greater than 0.25N/mm, is present over approximately 570m in the major direction of...

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