2009
Function of a debris-flow brake
International Journal of Erosion Control Engineering
- 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
- ID information
-
- DOI : 10.13101/ijece.2.15
- ISSN : 1882-6547
- CiNii Articles ID : 130004956760
- identifiers.cinii_nr_id : 9000283632571