List of products by author: O. Kitaoka

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  Reconstruction of a heaved invert without closing expressway

  Abstract: The Nikkureyama Tunnel is a two-lane traffic tunnel 2,000 m long, located on the Joshinetsu Expressway that extends from the Tokyo metropolitan area to Nagano. The section in the second phase was completed in 2002 by rerouting, maintaining the distance from the super-squeezing zone in the section of the first phase in order to avoid interference. However, eight years after the opening of...

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