Trenchless Techniques for Pipeline Installation, Renovation and Replacementby Roy C. Fedotoff, Brown & Caldwell Consulting, Engineers, Walnut Creek, CA, USA,
Peter H. Bellows, Brown & Caldwell Consulting, Engineers, Walnut Creek, CA, USA,
James Thomson, Brown & Caldwell Consulting, Engineers, Walnut Creek, CA, USA,
Abstract: New construction methods have been developed primarily in Europe and Japan for underground pipeline work. The new methods, known as trenchless techniques, are primarily used when existing underground pipes can be rehabilitated to extend their useful lives or when the disruption to a community from conventional underground construction techniques is unacceptable. Where a pipe is 36 inches or greater and no hazards exist, it is possible for men to enter a pipe and undertake work. For sizes below man-entry size, remote control techniques are required. It is within this area that the most interesting developments have occurred and which will be reviewed in this paper.
Subject Headings: Trenchless technology | Gas pipelines | Renovation | Underground construction | Pipelines | Rehabilitation | Buried pipes | North America | Georgia | Japan | Europe | United States | Asia
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