The development law of pore water pressure of the hydraulic fill subgrade in Shanghai under traffic vibratory load

Ping Yang Ynag, Hua-feng Guo, Shu-kai Zhao, Yi-qun Tang, Jian-xiu Wang

In the proceedings of: GEO2011: 64th Canadian Geotechnical Conference, 14th Pan-American Conference on Soil Mechanics and Geotechnical Engineering, 5th Pan-American Conference on Teaching and Learning of Geotechnical Engineering

Session: Geoenvironmental Engineering

ABSTRACT: The development law of pore water pressure in the roads of the hydraulic fill area under traffic vibratory load was analyzed by dynamic triaxial test in this paper. The test results show that pore water pressure of hydraulic fill subgrade under traffic vibratory load increases with vibration times. At the beginning of vibration, the pore water pressure increases quite quickly. The development law of pore water pressure of hydraulic fill subgrade differs in lower and higher frequency traffic vibratory load. The development law of pore water pressure under lower and higher frequency traffic vibratory load can be described by Eq. 1 and Eq. 2, respectively. When the pore water pressure reaches ninety percent of effective value of confining pressure, the deformation failure of hydraulic fill under higher frequency traffic vibratory load occurs.

RÉSUMÉ: Dans ce mémoire, un essai dynamique triaxial est exécuté pour rechercher la loi de développement de la pression interstitielle dans le remblai hydraulique due aux vibrations des véhicules. Les résultats montrent queˇöpremièrement la ère selon la fréquence de vibration. Les lois du développement de la pression interstitielle selon la basse et la haute fréquence sont décrites respectivement en utilisant la formule 1 et la formule 2. Enfin, lorsque la pression interstitielle atteind 90%

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Cite this article:
Ping Yang Ynag; Hua-feng Guo; Shu-kai Zhao; Yi-qun Tang; Jian-xiu Wang (2011) The development law of pore water pressure of the hydraulic fill subgrade in Shanghai under traffic vibratory load in GEO2011. Ottawa, Ontario: Canadian Geotechnical Society.

@article{GEO11Paper159,author = Ping Yang Ynag; Hua-feng Guo; Shu-kai Zhao; Yi-qun Tang; Jian-xiu Wang ,title = The development law of pore water pressure of the hydraulic fill subgrade in Shanghai under traffic vibratory load,year = 2011}