Until the present time the limit of dredges has been a depth of 150 feet, and wave action in offshore operations has been a problem. A new system of dredging has been designed to replace the conventional bucket-elevator and hydraulic types. The new dredge employs a number of dragline buckets connected by cables on each side, which gives a digging action similar to the dragline but with the added advantages of a conventional bucket line which swings across the digging surface. The dredge digs on a catenary, which provides a cushion for the buckets against wave action. A suspended lower idler device is used to shorten the length of hull which would be necessary for a pure catenary. Although the limits of the device are not known, it is expected to be able to dredge to a depth of 300 feet using 3-cubic yard buckets.

  • Corporate Authors:

    World Trade Publications Company

    213 Alpine Road
    Austin, TX  United States  78704
  • Authors:
    • Barber, L F
  • Publication Date: 1972-3

Media Info

Subject/Index Terms

  • TRT Terms: Draglines; Dredging
  • Subject Areas: Marine Transportation; Terminals and Facilities;

Filing Info

  • Accession Number: 00034772
  • Record Type: Publication
  • Source Agency: United States Merchant Marine Academy
  • Files: TRIS
  • Created Date: Sep 29 1972 12:00AM