Three-Dimensional Response of Buried Pipes under Circular Surface Loading
Publication: Journal of Geotechnical and Geoenvironmental Engineering
Volume 133, Issue 2
Abstract
Three-dimensional response of buried pipes under circular surface loading is investigated using the finite-element method. Previous work by Poulos in 1974 is reexamined, considering the longitudinal behavior of pipes under surface loading. Analyses are performed for pipes of varying stiffnesses and embedment depths. When stiff pipes are located close to the ground surface, the burial depth has little impact on the peak deflection. However flexible pipe deflections decrease significantly as embedment depth increases. Not surprisingly, peak moments increase with pipe stiffness and decrease as the pipes become more remote from the ground surface. The comparison of the new results with those of Poulos indicates that his Mindlin solution calculations are somewhat conservative relative to the finite-element solutions for deeply buried pipes, but unconservative at shallow burial.
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Acknowledgments
This work has been supported by the Natural Sciences and Engineering Research Council of Canada and by the Canadian Government through the Canada Research Chairs Program.
References
Jeyapalan, J. K., and Abdel-Magid, B. M. (1987). “Longitudinal stresses and strains in design of RPM pipes.” J. Transp. Eng., 113(3), 315–331.
Poulos, H. G. (1974). “Analysis of longitudinal behavior of buried pipes.” Proc., Conf. on Analysis and Design in Geotechnical Engineering, ASCE, Austin, Tex., 189–223.
Poulos, H. G., and Davis, E. H. (1974). Elastic solutions for soil and rock mechanics, Wiley, New York.
Poulos, H. G., and Davis, E. H. (1980). Pile foundation and design, Wiley, New York.
Rajani, B., Zhan, C., and Kuraoka, S. (1996). “Pipe-soil interaction analysis of jointed water mains.” Can. Geotech. J., 33, 393–404.
Trickey, S. A. (2005). “Three-dimensional finite element modeling of buried pipes including frost action.” MSc thesis, Dept. of Civil Engineering, Queen’s Univ. at Kingston, Canada.
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Information
Published In
Journal of Geotechnical and Geoenvironmental Engineering
Volume 133 • Issue 2 • February 2007
Pages: 219 - 223
Copyright
© 2007 ASCE.
History
Received: Mar 16, 2004
Accepted: Dec 13, 2004
Published online: Feb 1, 2007
Published in print: Feb 2007
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