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New Guide Spans Gamut of Requirements for
Maxi-Horizontal Directional Drilling

Maxi-horizontal directional drilling (maxi-HDD) places polyethylene (PE) pipe or conduit below grade using equipment that minimizes surface damage and restoration requirements. As a result, there is little disruption of vehicular or maritime traffic and minimal impact on existing underground lines and services. Used for telecommunications, electric power, natural gas, petroleum, and fluid transport, maxi-HDD is installed under rivers or other obstacles, typically with large-diameter pipes over long distances common in major river crossings.

To provide guidelines for maxi-HDD installation and design of PE pipe, ASTM F 1962, Standard Guide for Use of Maxi-Horizontal Directional Drilling for Placement of Polyethylene Pipe or Conduit Under Obstacles, Including River Crossings, is now available.

“The rapid growth of directional drilling as a method of installing polyethylene pipe in the late 80s and early 90s prompted the development of this standard. The standard will help installers and pipeline designers achieve successful installations. It gives guidance for designing polyethylene pipe to have adequate strength for pullback as well as for the earth and vehicular loads that occur after installation,” said Larry Petroff, engineering supervisor, PLEXCO, Performance Pipe Division of Chevron Chemical Company, Bensenville, Ill.

F 1962 was developed by telecommunications, electric, and gas utility engineers, directional drilling contractors, municipal and design engineers, pipe manufacturers and other members involved in the trenchless technology industry in Subcommittee F17.67 on Trenchless Plastic Pipeline Technology within Committee F-17 on Plastic Piping Systems.

ASTM standards are available through Customer Service (610/ 832-9585) or Web site. Interested parties should direct their questions to Larry Petroff, PLEXCO, 1050 Busse Highway, Ste. 200, Bensenville, IL 60106 (630/ 350-3759; fax: 630/350-2148). Committee F-17 meets during ASTM Committee Week, Apr. 10-13, in Toronto, Ontario, Canada. For meeting or membership information, contact F-17 Staff Manager Pat Picariello, ASTM (610/832-9720). //