Effect of the nonwoven fabric laying to give to diversion length of the capillary barrier

DOI 1 Citations
  • KOBAYASHI Kaoru
    Department of Civil Engineering, Kobe City College of Technology
  • MATSUMOTO Kazunobu
    The 1st Laboratory, Research Institute of Technology, Tobishima Corporation
  • NAKAFUSA Satoru
    Decommissioning Project Department, The Japan Atomic Power Company
  • MORII Toshihiro
    Research Institute for Natural Hazards and Disaster Recovery, Niigata University

Bibliographic Information

Other Title
  • キャピラリーバリアの限界長に及ぼす不織布敷設の影響

Abstract

A simple soil layer system which is composed of a finer soil (sand) layer underlain by a coarser soil (gravel) layer provides an excellent property of capillary barrier. The capillary barrier is necessary to make larger the gap of particle diameter of sand and gravel material. The functional deterioration of capillary barriers in service for dozens of years is of concern because of the transport of sand particles to the lower gravel layer due to an earthquake etc. The authors found that the inclusion of sand particles into the lower layer can be reduced by using the crushed shell particles instead of gravel in the capillary barrier. In this study, it’s examined an effect of the nonwoven fabric laying in the layer boundary surface to give to diversion length of the capillary barrier using a laboratory soil box test. As a result, the authors make clear not to have an effect of the nonwoven fabric laying to give to diversion length of the capillary barrier even if we laid it in the layer boundary surface.

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Details 詳細情報について

  • CRID
    1390282680233166336
  • NII Article ID
    130004482947
  • DOI
    10.3208/jgs.8.611
  • ISSN
    18806341
  • Text Lang
    ja
  • Data Source
    • JaLC
    • Crossref
    • CiNii Articles
    • KAKEN
  • Abstract License Flag
    Disallowed

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