Papers

Peer-reviewed
2009

Function of a debris-flow brake

International Journal of Erosion Control Engineering
  • GONDA Yutaka

Volume
2
Number
1
First page
15
Last page
21
Language
English
Publishing type
Research paper (scientific journal)
DOI
10.13101/ijece.2.15
Publisher
公益社団法人 砂防学会

A debris-flow brake is an erosion control facility designed to stop debris flows. However, the mechanism of the debris-flow brake has not been explained. This study discusses the change in pore-water pressure near the deck of a debris flow brake which controls solid friction between the debris flow and the deck. A dynamic model that describes the behavior of debris flows at the debris-flow brake was built It incorporates not only the change in sediment concentration of the debris flow due to water draining through the debris-flow brake but also the resulting change in pore-water pressure. Numerical simulations and experiments examined the behavior of debris flows at a debris-flow brake. The simulation and experimental results agreed. The simulation results show that the change in pore-water pressure plays an important role in how a debris-flow brake stops debris flows.

Link information
DOI
https://doi.org/10.13101/ijece.2.15
CiNii Articles
http://ci.nii.ac.jp/naid/130004956760
ID information
  • DOI : 10.13101/ijece.2.15
  • ISSN : 1882-6547
  • CiNii Articles ID : 130004956760
  • identifiers.cinii_nr_id : 9000283632571

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