PIPELINE REHAB: UNDERGROUND OPTIONS

Alternatives to replacing old pipe that also give long pipe life and ease the strain on the community are described. These newer rehabilitation options eliminate the trench and many of its drawbacks. Trenchless methods for on-line sewer replacement can be classified as bursting or excavation replacement. Bursting involves devices that apply radial forces to the old pipe, shattering it, and pulling up, or pushing new pipe behind the bursting device. The details of the equipment and technique are described. Excavation replacement is done be remote controlled microtunneling machines that crush rock; the new pipe is jacked in by the excavating head. Techniques that improve a pipe's life while offering an alternative to replacement include slip lining, modified slip lining, and spraying. Each of these methods is described in detail. Spraying a mortar or thin resin lining onto the pipe walls improves hydraulic performance and reduces corrosion. The method can work from existing manhole shafts, and does not close off laterals.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/oclc/10480594
• Corporate Authors:

  American Society of Civil Engineers

  345 East 47th Street
  New York, NY  United States  10017-2398
• Authors:
  • THOMSON, J C
• Publication Date: 1991-5

Media Info

• Pagination: p. 64-66
• Serial:
  • Civil Engineering
  • Volume: 61
  • Issue Number: 5
  • Publisher: American Society of Civil Engineers
  • ISSN: 0885-7024
  • Serial URL: http://www.pubs.asce.org/ceonline/newce/html

Subject/Index Terms

• TRT Terms: Corrosion protection; Driver rehabilitation; Excavations; Linings; Microforms; Performance; Pipe; Remote control; Resins; Sprayers; Tearing; Underground structures
• Uncontrolled Terms: Rehabilitation; Spraying
• Old TRIS Terms: Microfilms
• Subject Areas: Bridges and other structures; Highways; I20: Design and Planning of Transport Infrastructure;

Filing Info

• Accession Number: 00608000
• Record Type: Publication
• Files: TRIS
• Created Date: May 31 1991 12:00AM