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Enhanced design approaches for rigid and flexible buried pipes using advanced numerical modelling

Alzabeebee, Saif Imad Akoobi (2017)
Ph.D. thesis, University of Birmingham.

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Abstract

Buried pipelines are a vital element in maintaining modern life, as they provide a convenient way for transporting products such as gas, potable water, storm water and waste water. These buried structures have to resist external forces due to backfill soil weight and traffic loading. Therefore, the buried pipe needs to be designed properly to withstand these forces. However, careful examination of the current design standards showed significant issues with the existing design methodology for both rigid and flexible pipes. Thus, this research aimed to use advanced finite element modelling and novel advanced machine learning techniques (namely evolutionary polynomial regression (EPR)) to
improve the understanding and propose improvements in the design methods for buried rigid (concrete) and flexible (polyvinyl chloride (PVC)) pipes, to aid with the achievement of a more economic and robust design.
The outcomes of this research are a critical literature review, highlighting issues in the previous studies; an improved understanding of the behaviour of buried concrete and PVC pipes; novel design models for buried concrete pipes; and a novel design chart for buried PVC pipes. These design models and chart could be easily used by designers for an economic and robust design of buried concrete and PVCu pipes.

Type of Work:Ph.D. thesis.
Supervisor(s):Chapman, David and Faramarzi, Asaad and Jefferson, Ian
School/Faculty:Colleges (2008 onwards) > College of Engineering & Physical Sciences
Department:School of Engineering
Additional Information:

Publications resulting from research:

Alzabeebee, Saif, et al. "The response of buried pipes to UK standard traffic loading." Proceedings of the Institution of Civil Engineers-Geotechnical Engineering 170.1 (2016): 38-50.
https://doi.org/10.1680/jgeen.15.00190

Alzabeebee, Saif, David N. Chapman, and Asaad Faramarzi. "Development of a novel model to estimate bedding factors to ensure the economic and robust design of rigid pipes under soil loads." Tunnelling and Underground Space Technology 71 (2018): 567-578.
https://doi.org/10.1016/j.tust.2017.11.009

Conference papers:

Alzabeebee, Saif, David N. Chapman, and Asaad Faramarzi. "Numerical investigation of the bedding factors associated with the design of buried concrete pipes subjected to traffic loading." Proceedings of the 25th UKACM Conference on Computational Mechanics. Vol. 12. 2017.

Alzabeebee, S., Chapman, D.N. and Faramarzi, A., 2017, Numerical investigation of the bedding factor of concrete pipes under deep soil fill. Proceeding of the 2nd World Congress on Civil, Structural, and Environmental Engineering (CSEE’17), Barcelona, Spain, paper number 119.
DOI: 10.11159/icgre17.119

Alzabeebee, Saif, et al. "Investigating the maximum soil pressure on a concrete pipe with poor haunch support subjected to traffic live load using numerical modelling." 11th Pipeline Technology Conference Berlin, Germany. 2016.

Subjects:TA Engineering (General). Civil engineering (General)
Institution:University of Birmingham
ID Code:8004
This unpublished thesis/dissertation is copyright of the author and/or third parties. The intellectual property rights of the author or third parties in respect of this work are as defined by The Copyright Designs and Patents Act 1988 or as modified by any successor legislation. Any use made of information contained in this thesis/dissertation must be in accordance with that legislation and must be properly acknowledged. Further distribution or reproduction in any format is prohibited without the permission of the copyright holder.
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