Floating concrete caisson gates were chosen to seal off the 122 m wide by 13 m deep entrance to the Graythorp erection dry dock near Hartlepool, Great Britain, thus ensuring the fastest possible turn round for the construction of steel offshore oil platforms. Each half of the gate is 56 m long by 14 m wide by 14.4 m high, and weighs approximately 4500 t. Internal division walls form cells approximately 6 m by 6 m. The external walls of these cells are circular arch in plan. The gate walls are 250 mm thick for the arches and 300 mm thick elsewhere. The gates are floated off their foundations, guided vertically by the pin piles at each end of the gate, by pumping water out of the gate cells.

  • Corporate Authors:

    IPC Building and Control Journals, Limited

    Dorset House, Stanford Street
    London SE1 9LU,   England 
  • Publication Date: 1976-1

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 00138056
  • Record Type: Publication
  • Source Agency: Engineering Index
  • Files: TRIS
  • Created Date: Aug 23 1976 12:00AM