Journal of Japan Society of Civil Engineers, Ser. A1 (Structural Engineering & Earthquake Engineering (SE/EE))
Online ISSN : 2185-4653
ISSN-L : 2185-4653
JSCE Journal of Earthquake Engineering, Vol.33 (Paper)
STUDY ON EVALUATION FOR BEARING CAPACITY OF ASPHALT PAVEMENT ON LIQUEFIABLE GROUND
Hiroshi NAKAZAWATakahiro SUGANO
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2014 Volume 70 Issue 4 Pages I_453-I_468

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Abstract

 When an airport facilities, such as a runway and a taxi way, are dameged by an great earthquake, it is assumed that bearing capacity of soil layer below asphalt pavement will decrease with increase in excess pore water pressure and reduction of effective stress. If an airplane runs in such a situation, it is worried that the function of runway will be lost due to remarkable deformation such as differential subsidence caused by a load of airplane. In this study, numerical analysis, intended for the past shaking test of asphalt-liquefiable soil layer model to estimate bearing capasity bafore and after liquefaction, was carried out in process of dissipation of excess pore water pressure. As a results, a series of numerical analysis showed that the reqired performance of asphalt pavement was obtained only by slight recovery of the elastic coefficient in the liquefied soil layer directly with a dissipation of excess pore water pressure ratio.

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© 2014 by Japan Society of Civil Engineers
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