Seismic Behavior of Rockfill Dam Body Due to Relatively Strong Earthquake Motion

DOI

Bibliographic Information

Other Title
  • 中程度の強震動によるロックフィルダム堤体の挙動

Abstract

<p>We conducted NIOM analysis for the earthquake records observed at Yamaguchi regulating reservoir operated by the Japan Water Agency, and examined seismic wave velocity in the dam body. Based on the results, seismic wave velocities in the upper and lower core zones, and the upstream and downstream sides of rock zones were investigated. Then the nonlinear behavior during the relatively strong earthquake motions due to the 2005 Fukuoka-ken seiho-oki earthquake and the 2016 Kumamoto earthquake was discussed. The results revealed that the reduction of the shear rigidity during the Fukuoka-ken seiho-oki earthquake in the upper part of core zone was 35% at a shear strain of 1×10-4, and those in the rock zones were 25% at a strain of 3 to 5×10-5.</p>

Journal

Keywords

Details 詳細情報について

  • CRID
    1390858463932535040
  • DOI
    10.11315/jsde.33.16
  • ISSN
    18808220
    09173145
  • Text Lang
    ja
  • Data Source
    • JaLC
  • Abstract License Flag
    Disallowed

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