SYMPOSIA PAPER Published: 01 January 1967

Moisture Flow and Equilibria in Unsaturated Soils for Shallow Foundations


The performance of engineering structures on shallow foundations in Australia is largely dependent on moisture movement and equilibria in soils which are unsaturated. No suitable theory for the foundation design of these structures exists, and this paper outlines briefly a rational design approach based on considerable experimental evidence. This approach is suggested, not as one that has been tried successfully in many instances and therefore one which can be used without reservation, but rather to convince practical engineers that there is a rational solution to this problem which should lead to adequate design techniques in the near future. Techniques for the measurement of the required soil moisture properties are also mentioned and briefly discussed.

Author Information

Richards, B., G.
Commonwealth Scientific and Industrial Research Organization, Syndal, Victoria, Australia
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Developed by Committee: D18
Pages: 4–34
DOI: 10.1520/STP47257S
ISBN-EB: 978-0-8031-6933-3
ISBN-13: 978-0-8031-6635-6