The paper reports that a Japanese joint venture contractor is building a flexible sunken tube rail tunnel under Tokyo Bay designed to accommodate as much as 4 ft of soil settlement and survive a major earthquake. Joints between the elements have a rubber gasket on the outside and a small gap on the inside for flexibility. Post tensioning cables strung through the joints tie the segments together, and H-shaped steel members form a shear key embedded in the end of one element at each joint to prevent excessive vertical displacement. /EI/

  • Availability:
  • Corporate Authors:

    McGraw-Hill, Incorporated

    330 West 42nd Street
    New York, NY  United States  10036
  • Publication Date: 1978-2-21

Media Info

  • Pagination: p. 64
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00194906
  • Record Type: Publication
  • Source Agency: Engineering Index
  • Files: TRIS
  • Created Date: Aug 15 1981 12:00AM