ROCK-A-NORE. POLY IN THE OUTFALL

The article describes the use of a high density polythene pipe to reline a 100-years-old sea outfall at Rock-a-Nore, Hastings. The 1200 mm iron pipe, protected by concrete and laid on a sandstone bedrock, had been battered by rockfalls and by heavy seas. The lining pipe was made up of 12 M long sections, welded on the beach and winched in using a cable and a block and tackle at the seaward end with the winch installed on the esplanade some 500 M away. Once the inside of the old pipe had been cleaned and the excrescences at the welds of the new pipe trimmed, the lining was fed in in four lengths. Because of the frail condition of the old pipe, grouting by gravity was then carried out, the new liner being kept filled with water during grouting to withstand local pressures. The final stage of renovation was to cover the pipe with a sloped wave-wall of reinforced concrete. (TRRL)

• Corporate Authors:

  IPC Building and Contract Journals Limited

  Surrey House, 1 Throwley Way
  Sutton, Surrey SM1 4QQ,   England 
• Publication Date: 1980-2-21

Media Info

• Features: Figures; Photos;
• Pagination: p. 12
• Serial:
  • Surveyor - Public Authority Technology
  • Volume: 4576
  • Issue Number: 155
  • Publisher: IPC Building and Contract Journals Limited

Subject/Index Terms

• TRT Terms: Construction management; Drainage; Grouting; Iron; Linear programming; Pipe; Polyvinyl hydrocarbons; Preservation; Reinforced concrete; Repairing; Sea walls; Underground structures
• Uncontrolled Terms: Repairs; Subterranean
• Old TRIS Terms: Covering; Pipe protection; Polythene membrane
• ITRD Terms: 2937: Drainage; 3361: Pipe; 7422: Polyvinylhydrocarbon; 3635: Repair; 4372: Subterranean
• Subject Areas: Bridges and other structures; Construction; Highways; Hydraulics and Hydrology; Maintenance and Preservation; Marine Transportation; I26: Water Run-off - Freeze-thaw;

Filing Info

• Accession Number: 00319610
• Record Type: Publication
• Source Agency: Transport Research Laboratory
• Files: ITRD, TRIS
• Created Date: Jan 19 1981 12:00AM