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Longitudinal Stresses in Buried Pipes

by Reynold K. Watkins, Utah State Univ, Logan, UT, USA,



Document Type: Proceeding Paper

Part of: Advances in Underground Pipeline Engineering

Abstract:

Longitudinal stresses are inevitable in buried pipes even in pipes with gasketed joints. Longitudinal stresses in any pipe section are cumulative. They include stresses due to soil friction as the pipe section changes length either by the Poisson effect of internal pressure or by change in temperature. They include stresses due to beam bending of the pipe over high/hard spots in the bedding. Longitudinal stresses should be understood by the pipe manufacturer and by the pipeline design engineer.

Subject Headings: Buried pipes | Pipe joints | Pipe bedding | Stress analysis | Soil-pipe interaction | Soil stress | Soil analysis

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