The dynamic responses of different slope types are analyzed using the shaking table model test to study the influences of slope position and ground motion parameters on the dynamic response of acceleration. The influences of slope shape, elevation, seismic wave type, vibration intensity, and earthquake frequency on dynamic response are determined. The following conclusions are drawn from the experimental results. (1) The modal parameters of a slope are independent of elevation. The first-order natural frequency of the model system decreases gradually, whereas the damping ratio increases gradually as white noise increases slowly. (2) The acceleration amplification factor of a measuring point on a concave slope is slightly larger than that on a convex slope. The stability of a convex slope is better than that of a concave slope. (3) The elevation amplification effect, which is influenced by slope topography and ground motion parameters, differs under varying seismic loads. The elevation amplification effect of a concave slope is more significant than that of a convex slope. (4) The acceleration amplification coefficient obtained from each measuring point on the slope surface and in the inner region of the slope exhibits an increasing fold line trend. However, the acceleration amplification coefficient of each measuring point on the slope surface is greater than that in the inner region of the slope. (5) The slope dynamic amplification effect is closely related to the natural frequency of a slope. Within a certain range, when the frequency is high, the amplification effect is significant. (6) The influence of vibration strength on the slope dynamic response distribution is minimal along the height direction, whereas the influence on the slope acceleration amplification effect is evident.


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    Titel :

    Shaking Table Model Test of Slope Seismic Dynamic Response


    Beteiligte:
    Zhou, Zhi-jun (Autor:in) / Fan, Ya-lun (Autor:in) / Yan, Kun-fa (Autor:in)


    Erscheinungsdatum :

    2017-02-15


    Format / Umfang :

    102017-01-01 pages




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Unbekannt



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