Mechanistic Evaluation of Saturated Bases under Concrete Pavements
Publication: Journal of Transportation Engineering
Volume 121, Issue 6
Abstract
A mechanistic method for predicting the response of concrete pavements overlying a multilayer soil system is proposed. The method incorporates a finite-element discretization of a concrete slab and a variable foundation support that depends on the nonlinear resilient moduli of the underlying soil layers. The method allows for determination of excess pore-water pressure in saturated granular layers and the corresponding loss of foundation support under the pavement structure. To illustrate the idea, the proposed method was applied to investigate the behavior of a concrete pavement supported by granular bases over a soft clay layer. Moist-compacted and saturated conditions were examined for typical dense-graded and open-graded unbound granular bases. Pavement deflections, stresses, excess pore pressure, and compression settlement associated with pore-pressure dissipation for the different support conditions were evaluated and compared.
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Information & Authors
Information
Published In
Journal of Transportation Engineering
Volume 121 • Issue 6 • November 1995
Pages: 495 - 501
Copyright
Copyright © 1995 American Society of Civil Engineers.
History
Published online: Nov 1, 1995
Published in print: Nov 1995
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