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Investigating Water Holding Barriers for Climate Adaptation

Lookup NU author(s): Dr Paul Hughes, Dr Simon Rees, Dr Ross Stirling, Dr Jessica HolmesORCiD, Professor Stephanie Glendinning, Dr Colin DavieORCiD



This is the authors' accepted manuscript of a conference proceedings (inc. abstract) that has been published in its final definitive form by Australian Geomechanics Society, 2022.

For re-use rights please refer to the publisher's terms and conditions.


CACTUS (Climate Adaptation Control Technologies for Urban Spaces) is an ongoing research project that is investigating the development of “climate adaptation composite barrier systems” capable of limiting the impact of a changing environment on buried geo-infrastructure, such as retaining walls and foundations. The project partners are investigating: (i) a range of potential soil types (with amendments) that will meet the desired requirements of climate adaptation engineered barriers (permeability and water holding capacity); (ii) the independent and combined impacts of wet-dry and freeze-thaw cycles on the volume change and strength characteristics of the potential barrier materials; (iii) appropriate species of vegetation that can promote removal of water from the water holding layer; (iv) experimental modelling of stress-deformation characteristics (lateral and axial) of the soil systems when subject to wetting and drying; (v) numerical modelling of the composite barrier systems to develop protocols for implementing the novel systems; (vi) trial implementation of the proposed technologies at field scale.

Publication metadata

Author(s): Toll DG, Kerr H, Hughes PN, Johnson KL, Osman AS, Tripathy S, Wang H, Rees SW, Bengough AG, Boldrin D, Knappett JA, Thangarajah J, Pandey P, Sivakumar V, McKinnon P, Tsiampousi A, Petalas A, Zdravkovic L, Potts DM, Stirling RS, Holmes J, Glendinning S, Davie CT, Leung AK

Publication type: Conference Proceedings (inc. Abstract)

Publication status: Published

Conference Name: 20th International Conference on Soil Mechanics and Geotechnical Engineering

Year of Conference: 2022

Online publication date: 01/05/2022

Acceptance date: 29/10/2020

Date deposited: 06/04/2022

Publisher: Australian Geomechanics Society