Journal
COMPUTERS AND GEOTECHNICS
Volume 62, Issue -, Pages 110-117Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.compgeo.2014.06.014
Keywords
Unsaturated soil; Viscoelastic body; Consolidation; Semi-analytical solution; Excess pore-air pressure; Excess pore-water pressure
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Funding
- Innovation Program of Shanghai Municipal Education Commission [13YZ018]
- National Natural Science Foundation of China [41372279]
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This paper presents a semi-analytical solution to one-dimensional consolidation of viscoelastic unsaturated soils with a finite thickness under oedometric conditions and subjected to a sudden loading. The solution is obtained by using Lee's correspondence principle based on the semi-analytical solution to one-dimensional consolidation of elastic unsaturated soils. The boundary contains the top surface permeable to water and air and the bottom impermeable to water and air. A typical example is given to show the evolution of excess pore-air and pore-water pressures as well as the total degree of consolidation of the soil layer with time for different ratios of air-water permeability coefficient, elastic modulus and viscoelastic coefficient. The one-dimensional consolidation behavior of viscoelastic unsaturated soil is discussed according to the semi-analytical solution. These results contribute to a better understanding of the consolidation behavior of viscoelastic unsaturated soils. (C) 2014 Elsevier Ltd. All rights reserved.
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