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2025 | OriginalPaper | Chapter

Unsaturated Soil Mechanics in Engineering Practice Using the Equivalent Method

Author : Adrian R. Russell

Published in: Recent Advances and Innovative Developments in Transportation Geotechnics

Publisher: Springer Nature Singapore

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Abstract

The objective of this paper is to assist the uptake of unsaturated soil mechanics in strength and stability problems in engineering practice. It gives examples of research outcomes related to slope and shallow foundation stability determinations and shows how they can be applied routinely in hand calculations and commercial software using the equivalent method. The equivalent method involves capturing suction influences through an equivalent cohesion and an equivalent unit weight and then doing a total stress analysis. It also outlines industry changes and trends, including good practices and commonly made mistakes, relevant to way unsaturated soils are accounted for and the way suction is measured and implemented into a geotechnical model.

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previous chapter Shear and Hydraulic Behavior of Compacted Foamed Glass Aggregates for Transportation Earthworks
next chapter Recommendation for the Use of Micropiles to Ensure the Reliability of the Railway Track
Literature
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Khalili N, Romero E, Marinho F (2022) State of the art report. Advances in unsaturated soil mechanics: constitutive modelling, experimental investigation, and field instrumentation. In: Rahman M, Jaksa M (eds) The 20th ICSMGE-state of the art and invited lectures. Australian Geomechanics Society, Sydney, Australia
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Herraman R (2019) A lightweight soil nail retaining wall in unsaturated clay. Int J Geoeng Case Histories 5(1):1–11
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Khalili N, Khabbaz M (1998) A unique relationship for χ for the determination of the shear strength of unsaturated soils. Géotechnique 48(5):681–687CrossRef
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Vo T, Russell A (2017) Stability charts for curvilinear slopes in unsaturated soils. Soils Found 57:543–556CrossRef
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Vo T, Wang Y, Russell A (2022) The fall cone test in unsaturated soil and tailings pastes. Géotechnique 72(3):274–281CrossRef
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Metadata
Title
Unsaturated Soil Mechanics in Engineering Practice Using the Equivalent Method
Author
Adrian R. Russell
Copyright Year
2025
Publisher
Springer Nature Singapore
Book
Recent Advances and Innovative Developments in Transportation Geotechnics

Print ISBN: 978-981-9782-44-4

Electronic ISBN: 978-981-9782-45-1

Copyright Year: 2025

DOI
https://doi.org/10.1007/978-981-97-8245-1_8