Volume 20, Issue 4 (December 1997)

    Effects of Fines on Monotonic Undrained Shear Strength of Sandy Soils

    CODEN: GTJOAD

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    Abstract

    Shear strength of liquefied sands is an important component in seismic slope stability evaluation. Experimental data on a host sand mixed with different amounts of fines content and a careful analysis of other available steady state strength (Sus) data show that fines content and relative density play important roles affecting Sus. Fines content is found to be the major factor affecting Sus. When the Sus data for sands are grouped into (a) relatively clean sands (<12% fines), (b) silty sands (12 to 32% fines), and (c) silts or sandy silts (>50% fines) at the same relative density, relatively clean sands show the highest Sus. Silts show the lowest Sus. Silty sands show intermediate strengths. Based on this data, lower-bound relationships are proposed for Sus as a function of Dr and fines content.


    Author Information:

    Thevanayagam, S
    Assistant professor, Department of Civil, Structural, and Environmental Engineering, SUNY at Buffalo, Buffalo, NY

    Ravishankar, K
    Graduate student, SUNY at Buffalo, Buffalo, NY

    Mohan, S
    Project engineer, Diaz & Yourman Associates, Tustin, CA


    Stock #: GTJ10406J

    ISSN: 0149-6115

    DOI: 10.1520/GTJ10406J

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    Author
    Title Effects of Fines on Monotonic Undrained Shear Strength of Sandy Soils
    Symposium , 0000-00-00
    Committee D18