Doboku Gakkai Ronbunshuu C
Online ISSN : 1880-604X
ISSN-L : 1880-604X
Paper (In Japanese)
EFFECT OF TOPOGRAPHIC CONDITIONS AND DEPTH OF SURFACE SOIL LAYER ON SEISMIC RESPONSE CHARACTERISTICS ON MOUNTAIN SLOPE
Nobuyuki TORIITakashi OKIMURA
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JOURNAL FREE ACCESS

2008 Volume 64 Issue 2 Pages 369-382

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Abstract
In order to prevent and mitigate disaster due to earthquake-induced slope failures, it is important to make clear the effect of topographic conditions and depth of surface soil layer on the seismic response property on mountain slopes quantitatively. In this study, we evaluated the effect of them on the response property of maximum response acceleration and maximum shear strain by using the past and added result of seismic response analysis. The results of the evaluation were as follows. 1) Maximum response acceleration was amplified as altitude becomes higher. In addition, it was amplified at points where depth of surface soil layer was thick and where surface showed a convex shape. 2) Maximum shear strain increased at points where depth of surface layer was thicker. Furthermore, it showed a tendency to become larger at those points where shape of slope was convex.
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© 2008 by Japan Society of Civil Engineers
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