STUDY ON SEISMIC DIAGNOSIS OF EXISTING RAILWAY EMBANKMENTS USING SHEAR WAVE VELOCITY DISTRIBUTION

DOI Web Site 6 References
  • TAKAGI Shota
    公益財団法人鉄道総合技術研究所 構造物技術研究部
  • SATO Taketo
    公益財団法人鉄道総合技術研究所 構造物技術研究部
  • MATSUMARU Takaki
    公益財団法人鉄道総合技術研究所 構造物技術研究部
  • TOMIDA Yoshitaka
    公益財団法人鉄道総合技術研究所 構造物技術研究部
  • HAMADA Yoshisada
    西日本旅客鉄道株式会社 鉄道本部構造技術室
  • ENYA Atsushi
    西日本旅客鉄道株式会社 鉄道本部構造技術室

Bibliographic Information

Other Title
  • せん断波速度分布を活用した既設鉄道盛土の耐震診断に関する検討

Abstract

<p> The design values for soil strength used in the seismic diagnosis of existing railway embankments are determined based on laboratory soil tests of samples taken from them and density logging. The conventional design values cannot take into consideration the variability of the existing embankments such as the denseness caused by the cyclic loading of the train, so it is due to the sampling location that is away from the railway tracks. In this study, to advance the seismic diagnosis method, the design values considered the unsaturated strength of the materials and the shear wave velocity distribution obtained by the surface wave method were evaluated. As a result, it is possible to estimate the density distribution in the existing embankment by the surface wave method. In addition, the design value resistance improves considering the unsaturated strength characteristics of the embankment materials. It is possible to make a more rational seismic diagnosis.</p>

Journal

References(6)*help

See more

Keywords

Details 詳細情報について

Report a problem

Back to top