Application of Vertical Inclusions as Ground Improvement Techniques in Foundations of Transportation Infrastructure

Salehi, Yashar

Application of Vertical Inclusions as Ground Improvement Techniques in Foundations of Transportation Infrastructure

Salehi, Yashar

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Publication Type:: Thesis
Issue Date:: 2025

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Field	Value	Language
dc.contributor.author	Salehi, Yashar
dc.date.accessioned	2025-06-17T05:13:37Z
dc.date.available	2025-06-17T05:13:37Z
dc.date.issued	2025
dc.identifier.uri	http://hdl.handle.net/10453/187768
dc.description	University of Technology Sydney. Faculty of Engineering and Information Technology.	en_US.UTF-8
dc.description.abstract	This research investigates vertical inclusions in transportation structure foundations, focusing on Vibro Stone Columns (VSC), Controlled Modulus Columns (CMC), and Bi-modulus Columns (BMC). A literature review identifies significant gaps in current knowledge, emphasizing the need for further exploration into their performance in diverse soil conditions and loading scenarios. A key contribution is the numerical analysis using PLAXIS 3D, simulating shallow clayey soils under static and dynamic loads. The results clarify how vertical inclusions reduce settlement in embankments, offering insights into soil-structure interaction and the effectiveness of each method in enhancing transportation infrastructure stability. Expert interviews provide a global perspective, with specialists discussing the advantages, limitations, and regional preferences of these techniques. Their insights enrich the understanding of each method’s applicability in various geological and environmental contexts. The thesis also includes a cost analysis, comparing initial investments, maintenance, and long term benefits of the techniques. This evaluation aids in selecting cost-efficient solutions for specific projects. Findings emphasize the importance of site-specific analyses and tailored solutions to balance technical performance and economic feasibility. This research advances knowledge on VSC, CMC, and BMC, integrating numerical, expert, and cost analyses to optimize foundation solutions for weak ground.	en_US.UTF-8
dc.format	Thesis (PhD)
dc.language.iso	en_US	en_US.UTF-8
dc.relation	https://opus.lib.uts.edu.au/bitstream/10453/187768/1/thesis.pdf
dc.rights	info:eu-repo/semantics/openAccess
dc.rights	The author owns the copyright in this thesis including all reproduction and reuse rights for the work. The work may not be altered without the permission of the copyright owner. Attribution is essential when quoting or paraphrasing from this thesis.
dc.rights	© 2025 Yashar Salehi
dc.rights	au.edu.uts.lib/cph
dc.title	Application of Vertical Inclusions as Ground Improvement Techniques in Foundations of Transportation Infrastructure	en_US.UTF-8
dc.type	Thesis
utslib.copyright.status	open_access	*

Abstract:

This research investigates vertical inclusions in transportation structure foundations, focusing on Vibro Stone Columns (VSC), Controlled Modulus Columns (CMC), and Bi-modulus Columns (BMC). A literature review identifies significant gaps in current knowledge, emphasizing the need for further exploration into their performance in diverse soil conditions and loading scenarios. A key contribution is the numerical analysis using PLAXIS 3D, simulating shallow clayey soils under static and dynamic loads. The results clarify how vertical inclusions reduce settlement in embankments, offering insights into soil-structure interaction and the effectiveness of each method in enhancing transportation infrastructure stability. Expert interviews provide a global perspective, with specialists discussing the advantages, limitations, and regional preferences of these techniques. Their insights enrich the understanding of each method’s applicability in various geological and environmental contexts. The thesis also includes a cost analysis, comparing initial investments, maintenance, and long term benefits of the techniques. This evaluation aids in selecting cost-efficient solutions for specific projects. Findings emphasize the importance of site-specific analyses and tailored solutions to balance technical performance and economic feasibility. This research advances knowledge on VSC, CMC, and BMC, integrating numerical, expert, and cost analyses to optimize foundation solutions for weak ground.

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http://hdl.handle.net/10453/187768