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Effect of soil parameter uncertainty on seismic response of buried segmented pipeline

Gallage, Chaminda, Pathmanathan, Rajeev, & Jayantha , Kodikara (2011) Effect of soil parameter uncertainty on seismic response of buried segmented pipeline. In 1st International Conference on Geotechnique, Construction Materials and Environment, 21-23 November 2011, Tsu City, Mie, Japan. (Unpublished)

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Abstract

Pipelines are important lifeline facilities spread over a large area and they generally encounter a range of seismic hazards and different soil conditions. The seismic response of a buried segmented pipe depends on various parameters such as the type of buried pipe material and joints, end restraint conditions, soil characteristics, burial depths, and earthquake ground motion, etc.

This study highlights the effect of the variation of geotechnical properties of the surrounding soil on seismic response of a buried pipeline. The variations of the properties of the surrounding soil along the pipe are described by sampling them from predefined probability distribution. The soil-pipe interaction model is developed in OpenSEES. Nonlinear earthquake time-history analysis is performed to study the effect of soil parameters variability on the response of pipeline. Based on the results, it is found that uncertainty in soil parameters may result in significant response variability of the pipeline.

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ID Code: 48981
Item Type: Conference Paper
Keywords: Buried Pipe, Soil-pipe Interaction, Soil Parameter, Uncertainty, Seismic Response
ISBN: 9784990595807
Subjects: Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > CIVIL ENGINEERING (090500) > Civil Geotechnical Engineering (090501)
Divisions: Current > Schools > School of Earth, Environmental & Biological Sciences
Current > QUT Faculties and Divisions > Science & Engineering Faculty
Copyright Owner: Copyright 2011 The Authors
Deposited On: 06 Mar 2012 08:47
Last Modified: 07 Mar 2012 23:15

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