DEBRIS-WOOD CAPTURE EFFECT CONTROLED BY CONCRETE-SLIT DAM UNDER LOW-GRADIENT FLOW

Norio Harada, Ichirou Kimura, Yoshifumi Satofuka, Takahisa Mizuyama

Research output: Contribution to journalConference articlepeer-review

Abstract

In 2017, heavy rains upstream of Sabo dams in northern Kyushu, Japan, caused several downstream disasters attributable to debris-wood flow. It is thus necessary to implement protective measures throughout the entire river basin. The potential effects of such measures on concrete-slit Sabo dams installed in regions of lowgradient flow must be examined. We describe how to capture debris-wood in the backwaters of concrete-slit Sabo dam pools. We also propose the installation of wire-nets to prohibit debris-wood spill-out, and provide detailed diagrams illustrating the implementation of such countermeasures.

Original languageEnglish
Pages (from-to)4886-4893
Number of pages8
JournalProceedings of the IAHR World Congress
DOIs
StatePublished - 2019
Event38th IAHR World Congress, 2019 - Panama, Panama
Duration: 2019/09/012019/09/06

Keywords

  • Backwater
  • concrete-slit Sabo-dam
  • debris-wood
  • experiment
  • wire net

ASJC Scopus subject areas

  • Engineering (miscellaneous)
  • Civil and Structural Engineering
  • Ocean Engineering
  • Water Science and Technology

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