STP450: Factors Affecting the Cyclic Loading Strength of Soil

    Lee, KL
    Assistant professor, University of California, Los Angeles, Calif.

    Fitton, JA
    Graduate research assistant, University of California, Los Angeles, Calif.

    Pages: 25    Published: Jan 1969


    Abstract

    Pulsating loading triaxial tests were performed on saturated samples of soil to determine the effect of grain size, grain-size distribution, and grain shape on the strength of soil under simulated earthquake loading conditions. Comparing soils tested at the same relative density and confining pressure it was found that fine silty sands were the weakest, with 3/4-in. gravel being two times stronger and compacted clay being up to three times stronger. The effect of grainsize distribution and grain shape was considerably less significant than the grain size.

    Keywords:

    earthquake, soil dynamics, dynamic loads, cyclic loads, liquefaction, relative density, sand, soil mechanics, triaxial tests, evaluation, tests


    Paper ID: STP33637S

    Committee/Subcommittee: D18.09

    DOI: 10.1520/STP33637S


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