Swelling and shrinking soils

Lee Jones, Vanessa Banks, Ian Jefferson

Research output: Chapter in Book/Report/Conference proceedingChapter

1 Citation (Scopus)

Abstract

Swelling and shrinking soils are soils that can experience large changes in volume due to changes in water content. This may be due to seasonal changes in moisture content, local site changes such as leakage from water supply pipes or drains, changes to surface drainage and landscaping, or following the planting, removal or severe pruning of trees or hedges. These soils represent a significant hazard to structural engineers across the world due to their shrink–swell behaviour, with the cost of mitigation alone running into several billion pounds annually. These soils usually contain some form of clay mineral, such as smectite or vermiculite, and can be found in humid and arid/semi-arid environments where their expansive nature can cause significant damage to properties and infrastructure. This chapter discusses the properties and costs associated with shrink–swell soils, their formation and distribution throughout the UK and the rest of the world, and their geological and geotechnical characterization. It also considers the mechanisms of shrink-swell soils and their behaviour, reviewing strategies for managing them in an engineering context, before finally outlining the problem of trees and shrink–swell soils.

Original languageEnglish
Title of host publicationGeological Society Engineering Geology Special Publication
PublisherGeological Society of London
Pages223-242
Number of pages20
Edition1
DOIs
Publication statusPublished - 2020

Publication series

NameGeological Society Engineering Geology Special Publication
Number1
Volume29
ISSN (Print)0267-9914

Bibliographical note

Publisher Copyright:
© 2020 BGS & UKRI. All rights reserved.

ASJC Scopus subject areas

  • Geotechnical Engineering and Engineering Geology

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