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Published in: Geotechnical and Geological Engineering 1/2013

01-02-2013 | Original paper

Investigating the Effects of Local Contact Loss on the Earth Pressure Distribution on Rigid Pipes

Authors: Sherif Kamel, Mohamed A. Meguid

Published in: Geotechnical and Geological Engineering | Issue 1/2013

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Abstract

In this paper, the earth pressure distribution acting on a buried pipe with localized support loss is investigated experimentally and numerically in this study. A laboratory setup has been designed to facilitate the simulation of the local wall separation and to track the changes in earth pressure at selected locations along the pipe circumference. Validated by the experimental results, two-dimensional finite element analysis has been conducted to examine the role of soil-pipe interaction on the pressure distribution around the pipe before and after the contact loss is introduced. Experimental and numerical results revealed that the presence of a gap between the pipe wall and the surrounding backfill can lead to significant changes in contact pressure and bending moment in the pipe wall in the immediate vicinity of the gap. This study suggests that efforts to detect and repair areas experiencing support loss should be made before significant changes in pressure develop causing stress concentration in the pipe wall as it may lead to pipe damage.

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Metadata
Title
Investigating the Effects of Local Contact Loss on the Earth Pressure Distribution on Rigid Pipes
Authors
Sherif Kamel
Mohamed A. Meguid
Publication date
01-02-2013
Publisher
Springer Netherlands
Published in
Geotechnical and Geological Engineering / Issue 1/2013
Print ISSN: 0960-3182
Electronic ISSN: 1573-1529
DOI
https://doi.org/10.1007/s10706-012-9580-8

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