The installation work of Akinada sea-bottom water service pipeline was to install five under-water pipelines to serve the waterworks from the mainland to the Shimokamagari, Kamikamagari, Toyo Oosakishimo and Oosakikami Island in the Setonaikai Sea. This work had to be performed under the severest conditions such as a water depth of 80m for No. 1 route and a tidal current of 3.1 knots of No. 4 route. Nippon Kokan, a major sea-bottom pipeline builder in Japan was granted the contract for this work. In designing, water tank experiments were carried out at the Department of Oceanography of Tokai University. Nippon Kokan Group's theoretical equation covering the behavior of under-water pipeline under external force was proved valid, and simultaneously, all conceivable conditions were sufficiently studied, thus permitting wrestling with the deep water and the rapid tidal current, and successfully completing the installation work.

  • Corporate Authors:

    Nippon Kokan Kabushiki Kaisha

    1-1-13, Ohtemachi, Chiyodaku
    Tokyo,   Japan 
  • Authors:
    • Higurashi, M
  • Publication Date: 1973

Media Info

  • Pagination: p. 109-117

Subject/Index Terms

Filing Info

  • Accession Number: 00095012
  • Record Type: Publication
  • Source Agency: Japan Shipbuilding Industry Foundation Library
  • Report/Paper Numbers: No. 60 Tech. Rpt.
  • Files: TRIS
  • Created Date: May 7 1975 12:00AM