A comparison of wood-sediment-water mixture flows at a closed type and an open type of check dams in mountain rivers

F. Maricar, H. Hashimoto

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)

Abstract

The debris flow event in Hofu City, Yamaguchi Prefecture, Japan on July 21, 2009 yielded a large amount of sediment transport and woody debris in the mountain river basin, where a closed type of check dam and an open type of check dam were built (Maricar et al., 2011). Based on laboratory tests, the debris flow control by these check dam was studied. This paper compares the deposition process of sediment grains and pieces of wood at the open and closed check dam in a laboratory flume experiment. The experimental results showed that the open check dam trapped the wood pieces and the trapped pieces deposited the sediment grains behind themselves. On the other hand, the closed check dam made most of wood pieces pass through the check dam and most of sediment grains get trapped in the water pool behind the closed check dam.

Original languageEnglish
Title of host publicationProceedings of the International Conference on Fluvial Hydraulics, RIVER FLOW 2014
PublisherCRC Press/Balkema
Pages711-716
Number of pages6
ISBN (Print)9781138026742
DOIs
Publication statusPublished - 2014
Event7th International Conference on Fluvial Hydraulics, RIVER FLOW 2014 - Lausanne, Switzerland
Duration: Sep 3 2014Sep 5 2014

Publication series

NameProceedings of the International Conference on Fluvial Hydraulics, RIVER FLOW 2014

Other

Other7th International Conference on Fluvial Hydraulics, RIVER FLOW 2014
CountrySwitzerland
CityLausanne
Period9/3/149/5/14

All Science Journal Classification (ASJC) codes

  • Nature and Landscape Conservation
  • Water Science and Technology

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  • Cite this

    Maricar, F., & Hashimoto, H. (2014). A comparison of wood-sediment-water mixture flows at a closed type and an open type of check dams in mountain rivers. In Proceedings of the International Conference on Fluvial Hydraulics, RIVER FLOW 2014 (pp. 711-716). (Proceedings of the International Conference on Fluvial Hydraulics, RIVER FLOW 2014). CRC Press/Balkema. https://doi.org/10.1201/b17133-97