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Monotonic triaxial experiments to evaluate steady-state and liquefaction susceptibility of Babolsar sand

Journal of Zhejiang University-Science A(Applied Physics & Engineering) 2013年第10期14卷 739-750页

作者： Yaser JAFARIAN Ali GHORBANI Siavash salamatpoor sina salamatpoor International Institute of Earthquake Engineering and Seismology Faculty of Engineering University of Guilan International Branch University of Guilan

In this study,drained and undrained triaxial tests under isotropic and anisotropic consolidations were conducted on reconstituted samples of Babolsar sand,which underlies a densely populated,seismic region of the southern coast of the Caspian Sea,Mazandaran,*** was demonstrated that the sand experienced all possible states of liquefiable soil: flow failure,limited flow,and *** steady-state and flow liquefaction lines of this sand were presented and compared with previously tested *** is shown that the initial stress anisotropy can affect the potential of volume change and pore pressure *** steady-state line(SSL),however,remains identical for the isotropically and anisotropically consolidated specimens under drained and undrained *** tests data were then analyzed in order to investigate the liquefaction susceptibility of this sand in terms of parameters such as the state parameter,relative state parameter index,and lateral earth pressure ratio at failure.

关键词： Triaxial test Sand Steady-state Liquefaction susceptibility

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Evaluation of Babolsar Sand Behaviour by Using Static Triaxial Tests and Comparison with Case History

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Open Journal of Civil Engineering 2014年第3期4卷 181-197页

作者： sina salamatpoor Siavash salamatpoor Department of Civil Engineering Najafabad Branch Islamic Azad University Najafabad Iran

An experimental study is carried out to investigate the static liquefaction of sand. For this purpose, Babolsar sand with its liquefiable parameters such as soil properties and high seismic level of underground water are investigated using static compression drained and un-drained tri-axial tests under isotropically and anisotropically conditions. Also, the data results of this sand are compared with those of the previous studies on soil case history. The study results indicate that Babolsar sand can experience the whole possible states of liquefaction soil, i.e. flow failure, limited and dilation behavior.

关键词： Liquefaction Susceptibility Triaxial Test Isotropic Anisotropic Steady-State Strength Ratio

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