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Numerical modelling of the effect of curing time on the creep behaviour of a chemically stabilised soft soil
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DOI：10.1016/j.compgeo.2017.07.007.png)
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Abstract
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This work studies the effect of the curing time on the creep behaviour of a stabilised soft soil, using volumetric and deviatoric creep laws associated with constitutive models. Results of unconfined compressive strength tests for several curing times are used to define the time evolution of the mechanical and creep properties. The models/creep laws are validated by oedometer and triaxial creep tests, for 28 and 90 days of curing. The long-term behaviour of an embankment built on a soft soil reinforced with deep mixing columns shows that the effect of curing time decreases the settlement and increases the improvement factor. (C) 2017 Elsevier Ltd. All rights reserved.
Keywords:
Creep
Curing time
Stabilised soft soil
Deep mixing columns
Embankment on soft clay
Numerical modelling
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