Study on Dynamic Response Characteristics of Saturated Asphalt Pavement under Multi-Field Coupling.
TLDR
To study the dynamic response of saturated asphalt pavement under moving load and temperature load, 3-D finite element models were built based on the porous media theory and Biot theory to show that both the curves of the effective stress and the pore-water pressure versus the external loads have similar patterns.Abstract:
To study the dynamic response of saturated asphalt pavement under moving load and temperature load, 3-D finite element models for asphalt pavements with hydro-mechanical coupling and thermal-hydro-mechanical coupling were built based on the porous media theory and Biot theory. First, the asphalt pavement structure was considered as an ideal saturated fluid⁻solid biphasic porous medium. Following this, the spatial distribution and the change law of the pore-water pressure with time, the transverse stress, and the vertical displacement response of the asphalt pavement under different speeds, loading times, and temperatures were investigated. The simulation results show that both the curves of the effective stress and the pore-water pressure versus the external loads have similar patterns. The damage of the asphalt membrane is mainly caused by the cyclic effect of positive and negative pore-water pressure. Moreover, the peak value of pore-water pressure is affected by the loading rate and the loading time, and both have positive exponential effects on the pore-water pressure. In addition, the transverse stress of the upper layer pavement is deeply affected by the temperature load, which is more likely to cause as transverse crack in the pavement, resulting in the formation of temperature cracks on the road surface. The vertical stress at the middle point in the upper layer of the saturated asphalt pavement, under the action of the temperature load and the driving load, shows a single peak.read more
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References
More filters
Journal ArticleDOI
Theory of Porous Media: Highlights in Historical Development and Current State
R. de Boer,N Katsube +1 more
TL;DR: The early era The classical era The modern era Current state of porous media theory Outlook as discussed by the authors The early era, the classical era, and the modern era of media theory, see Section 2.
Journal ArticleDOI
The fundamental solution in dynamic poroelasticity
Robert Burridge,C. A. Vargas +1 more
TL;DR: In this article, Biot's full, time-dependent equations of dynamic poroelasticity with a view to understanding the effect of pore fluid on seismic wave propagation are studied.
Journal ArticleDOI
Lamb's problem for fluid-saturated, porous media
TL;DR: In this article, an analytic solution of the axisymmetric propagation in a fluid-saturated half-space produced by the concentrated load P oexp( iωt ) acting vertically at the surface is presented.
Journal ArticleDOI
Steady state responses of poroelastic half-space soil medium to a moving rectangular load
TL;DR: In this paper, the dynamic steady state responses of a poroelastic half-space soil medium subjected to a moving rectangular load are investigated analytically/numerically under the assumption of an incompressible solid grain and neglecting the apparent mass density.
Journal ArticleDOI
Comprehensive study on the porous asphalt effects on expressways in Japan: based on field data analysis in the last decade
TL;DR: In this article, the authors summarized the successful performance of porous asphalt surface courses based on a long-term survey over nearly 15 years in fields, also describing the negative impacts of the porous asphalt.