List of products by author: Y. Shimizu

• Read more

  0,00 €

  Development of New Composite Segment and Use in the Field

  Abstract: The Keio Corporation buried its at-grade train lines to alleviate traffic around Chofu Station. Underground shield tunnels were constructed for a total of four tracks (two on the main Keio Line, two on the Sagamihara Line) as part of a series of projects. The four shield tunnels comprise mainly primary-lined reinforced concrete segments (hereafter “RC segments”) built atop or beside one another...

  0,00 €

  Add to cart
• Read more

  0,00 €

  Influence of Structural Opening on the Behavior of Existing Structures

  Abstract: When creating an opening in a sidewall of an existing cut-and-cover tunnel, safety verification should be carried out for fear of decrease in rigidity of the node connecting the upper slab and the sidewall. The decrease in the rigidity of the node connecting the upper slab and the sidewall results in an increase in vertical displacement along the upper slab span, and for this reason, the inner...

  0,00 €

  Add to cart