Unified Approach to Thrust Restraint Design
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VIEW THE REPLYPublication: Journal of Transportation Engineering
Volume 133, Issue 1
Abstract
The design of thrust blocks for water pipelines and sewer force mains vary from one pipe material or standard to another just like the design of pipe wall thickness. This creates tremendous confusion among consulting engineers and owners of projects. The designers and the owners have to look up Design Manual M9 for concrete pipe, Design Manual M11 for welded steel pipe, Design Manual M41 for ductile iron pipe, Design Manual M23 for PVC pipe, and Design Manual M45 for fiberglass pipe. In many countries, water pipeline materials are required to meet a common standard, where design equations are kept the same whereas material properties vary from one pipe material to another. The purpose of this paper is to start from the fundamental principles of fluid mechanics and geotechnical engineering and build the engineering know-how needed to apply the same design methodology for all pipe materials and applications. A step-by-step design methodology is presented.
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References
American Water Works Association (AWWA). (1979). Manual M9, concrete pressure pipe, Denver.
American Water Works Association (AWWA). (1989). Manual M11, steel pipe—A guide for design and installation, Denver.
American Water Works Association (AWWA). (1996a). Manual M41, ductile-iron pipe and fittings, Denver.
American Water Works Association (AWWA). (1996b). Manual M45, fiberglass pipe design, Denver.
Romer, A. E. (1998). “Avoiding common thrust restraint mistakes.” Proc., ASCE Conf. on Pipelines in the Constructed Environment, J. P. Castronovo and J. A. Clark, eds., San Diego, 97–102.
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© 2007 ASCE.
History
Received: Jan 6, 2003
Accepted: Jul 27, 2006
Published online: Jan 1, 2007
Published in print: Jan 2007
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