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Effect of the Non-linear Permeability of Clays on the Behavior of Soils in Embankment Construction  

Kim, Tae-Hoon (Dept. Hanjin Heavy Industries & Construction Co. Ltd.)
Han, Tae-Gon (Civil Design Dept., Hanjin Heavy Industries & Construction Co. Ltd.)
Yoo, Ki-Cheong (Hanjin Heavy Industries & Construction Co. Ltd.)
Lee, Song (Dept. of Civil Engrg., University of Seoul)
Publication Information
Journal of the Korean Geotechnical Society / v.20, no.6, 2004 , pp. 61-73 More about this Journal
Abstract
The coefficient of permeability of natural clay shows a nonlinear property which is related to various stress level of soils, and this nonlinear property has effect on the period of consolidation and the property of deformation in clay soils under loading. Thus, in this paper the numerical analysis was conducted by FEM-using coupled theory which incorporated Biot's consolidation theory into modified Cam-clay model- to consider the effects of nonlinear permeability on the behavior of clay soils under loading. The result of this paper showed that nonlinear permeability had different effects on the deformation and excess pore water pressure in clay soils according to the change of ratios of coefficients of permeability which was presented a degree of nonlinear property, and average coefficients of permeability of soils. Therefore, it was concluded that nonlinear permeability should be considered according to both the change of ratios of coefficients of permeability and average coefficients of permeability to conduct more simultaneous analyses to field conditions.
Keywords
Consolidation analysis; Coupled analysis; Modified cam-clay model; Nonlinear permeability;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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