HUANG Runqiu, YU Jiashun. 2003: MODELLING OF THE EFFECTS OF PROPERTIES OF A BURIED WEAK LAYER ON SEISMIC WAVES. JOURNAL OF ENGINEERING GEOLOGY, 11(3): 312-317.
    Citation: HUANG Runqiu, YU Jiashun. 2003: MODELLING OF THE EFFECTS OF PROPERTIES OF A BURIED WEAK LAYER ON SEISMIC WAVES. JOURNAL OF ENGINEERING GEOLOGY, 11(3): 312-317.

    MODELLING OF THE EFFECTS OF PROPERTIES OF A BURIED WEAK LAYER ON SEISMIC WAVES

    • The effects of the elastic-plastic parameters of a buried weak layer on seismic ground motion amplification are modelled. It is found that significant amplification would occur at certain frequencies when the shear wave velocity in the weak layer is no higher than 30% of that in surrounding layers. It is found that shear wave velocity mainly affects the amplification strength of the buried weak layer, while other elastic parameters, such as density and quality factor, have no significant effects on it. It is also found that the strength is controlled by a certain relationship between the shear wave velocity and the thickness of the weak layer. Further analytical study is yet required to reveal the relationship.
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