Journal
COMPUTERS AND GEOTECHNICS
Volume 61, Issue -, Pages 316-327Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.compgeo.2014.06.010
Keywords
Elasto-plastic modelling; Lignosulfonate; Shear strength; Deformation; Triaxial tests
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Funding
- Queensland Department of Transport and Main Roads, Chemstab Consulting Pty. Ltd., Douglas Partners, Coffey Geotechnics through an Australian Research Council (ARC) [LP-110200447]
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The effectiveness of an environmentally friendly stabilising agent for soil, namely, lignosulfonate was examined through a series of laboratory tests. A simple bounding surface plasticity model was developed to capture the bonding effects induced by lignosulfonate. One of the appealing aspects of the model is that it can incorporate the mechanical behaviour of the bonded soil during shearing, including the brittle and ductile failure modes. Validity of the model was verified by experimental results of lignosulfonate-treated soils under different stress path conditions. The mechanical behaviour of chemically treated soil was adequately captured by the model. (C) 2014 Elsevier Ltd. All rights reserved.
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