Full-Scale Field Tests on Flexible Pipes under Live Load Application
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VIEW THE REPLYPublication: Journal of Performance of Constructed Facilities
Volume 20, Issue 1
Abstract
This paper describes the procedure and results of the field tests on high-density polyethylene (HDPE), PVC, and metal large diameter pipes subjected to a highway design truck loading. Numerical simulations using finite element method are performed to determine pipe-soil system response under live load application. Comparisons of field test data with the predicted responses are made for soil pressures around and above the pipes, deformed cross-sectional pipe profiles, and pipe deflections. The field test results indicated that the buried flexible pipes, embedded with highly compacted graded sand with silt, demonstrated good performance without exhibiting any visible joint opening or structural distress. Under shallow burial conditions, the AASHTO specified deflection limit of 5% is found to be adequate for installation of the flexible pipes during the construction phase, and a vertical deflection limit of 2% is suggested for HDPE pipes based on the truck load response and repeated loading effect.
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Acknowledgments
The writers wish to express sincere thanks to Florida Department of Transportation (FDOT) for the financial support of the study presented in this paper (Research Project: Experimental and Analytical Evaluation of Flexible Pipes for Culverts and Storm Sewers, Contract No. BC-775, Principal investigator: Dr M. Arockiasamy, Project Manager: Marc Ansley). The writers wish to express their appreciation to Dr. P. Scarlatos, Professor and Interim Chairman, Department of Civil Engineering, and Dr. Karl K. Stevens, Dean, College of Engineering, Florida Atlantic University for their continued interest and encouragement.
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Published In
Journal of Performance of Constructed Facilities
Volume 20 • Issue 1 • February 2006
Pages: 21 - 27
Copyright
© 2006 ASCE.
History
Received: Oct 6, 2004
Accepted: Mar 1, 2005
Published online: Feb 1, 2006
Published in print: Feb 2006
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