Risk Evaluation Method for SPSP Cutoff Walls at Coastal Waste Landfill Sites

DOI

Bibliographic Information

Other Title
  • 海面処分場における鋼管矢板遮水壁のリスク評価手法

Abstract

An evaluation method that can express the local leakage of leachate from joint sections in steel pipc sheet pile (SPSP) cutoff walls is discussed, in this study. In particular, the evaluation of environmental feasibility (containment of leachates containing toxic substances) considering a three-dimensional arrangement and hydraulic conductivity distribution of the joint sections in the SPSP cutoff wall is compared with an evaluation that generally uses the equivalent hydraulic conductivity. This equivalent hydraulic conductivity assumes that the joint section and the steel pipe are integrated; therefore, the hydraulic conductivity is substituted with a uniform permeable layer. However, in an evaluation that employs the equivalent hydraulic conductivity, it is difficult to consider the local leakage of leachate containing toxic substances from the joint sections in the SPSP cutoff wall. This paper concluded that evaluations of the environmental feasibilities of the SPSP cutoff walls with joint sections must take into account the local leakage of leachates containing toxic substances from the joint section.

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Details 詳細情報について

  • CRID
    1390282680366765824
  • NII Article ID
    130003821522
  • DOI
    10.2208/procm.15.13
  • ISSN
    18848311
  • Data Source
    • JaLC
    • Crossref
    • CiNii Articles
  • Abstract License Flag
    Disallowed

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