A laboratory facility for studying pullout behaviour of buried pipelines
Parththeeban Murugathasan, Ashutosh Sutra Dhar, Bipul Chandra Hawlader
In the proceedings of: GeoEdmonton 2018: 71st Canadian Geotechnical Conference; 13th joint with IAH-CNCSession: Geohazards in Linear Infrastructure
ABSTRACT: The effect of ground movements on the performance of buried pipelines is an important consideration for pipeline integrity assessment. The experimental and analytical studies conducted in the past identified the important shearing mechanisms of soil around the pipe during relative ground movements. However, design methods for the assessment of pipes subjected to ground movements are not well developed, due to lack of quantitative data on the effects of soil shearing on the pullout force of the pipeline. The objective of the current study is to develop a laboratory test facility for pullout testing of buried pipelines to investigate pipe with different diameters and materials while simulating the ground conditions expected in the field. Finite-element modelling is used to assess the effects of the size of the test facility and rigidity of the boundary wall on the pullout behaviour. Based on the calculated effects, an optimum design of the test box is developed. The findings from this study suggest that a width of 10 times pipe diameter for the test cell is sufficient for axial pullout testing; however, the boundary wall stiffness should be designed to adequately minimize the wall deformations.
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Murugathasan, Parththeeban, Dhar, Ashutosh Sutra, Hawlader, Bipul Chandra (2018) A laboratory facility for studying pullout behaviour of buried pipelines in GEO2018. Ottawa, Ontario: Canadian Geotechnical Society.
@inproceedings{Murugathasan_GEO2018_482,
author = {{Murugathasan, Parththeeban}, {Dhar, Ashutosh Sutra}, {Hawlader, Bipul Chandra}}
title = {A laboratory facility for studying pullout behaviour of buried pipelines}
booktitle = {Proceedings of the 71st Canadian Geotechnical Conference; 13th joint with IAH-CNC }
year = {2018}
organization = {The Canadian Geotechnical Society},
address = {Ottawa, Canada} }
title = {A laboratory facility for studying pullout behaviour of buried pipelines}
booktitle = {Proceedings of the 71st Canadian Geotechnical Conference; 13th joint with IAH-CNC }
year = {2018}
organization = {The Canadian Geotechnical Society},
address = {Ottawa, Canada} }