Detail publikačního výsledku

Comparison of specific sediment transport rates obtained from empirical formulae and dam breaching experiments

ALHASAN, Z.; JANDORA, J.; ŘÍHA, J.

Originální název

Comparison of specific sediment transport rates obtained from empirical formulae and dam breaching experiments

Anglický název

Comparison of specific sediment transport rates obtained from empirical formulae and dam breaching experiments

Druh

Článek WoS

Originální abstrakt

Abstract. Sediment transport rate determination plays an essential role in mathematical models of embankment dam breaching. The sediment transport formulae commonly used today were mostly determined under considerably different conditions than those existing during the breaching of embankment dams, i.e. in connection with relatively mild longitudinal slopes. However, due to the scarceness of sediment transport relations for sediment transport rates on steep slopes, these traditional formulae are frequently used in dam breach modelling. This paper contains a description of a physical model of a 0.86 m high sandy dike constructed and breached at an outdoor laboratory operated by the Faculty of Civil Engineering, Brno University of Technology, Czech Republic. The dike shape and material were the same for all experiments. The used material was homogeneous non-cohesive medium-uniform sand. The results of the experimental breaching of the sandy dike were discussed and compared with sediment transport rates obtained from various empirical formulae. The comparison shows differences between experimental and calculated sediment transport rates which in all analysed cases indicate overestimation of the breaching rate calculated by empirical formulae.

Anglický abstrakt

Abstract. Sediment transport rate determination plays an essential role in mathematical models of embankment dam breaching. The sediment transport formulae commonly used today were mostly determined under considerably different conditions than those existing during the breaching of embankment dams, i.e. in connection with relatively mild longitudinal slopes. However, due to the scarceness of sediment transport relations for sediment transport rates on steep slopes, these traditional formulae are frequently used in dam breach modelling. This paper contains a description of a physical model of a 0.86 m high sandy dike constructed and breached at an outdoor laboratory operated by the Faculty of Civil Engineering, Brno University of Technology, Czech Republic. The dike shape and material were the same for all experiments. The used material was homogeneous non-cohesive medium-uniform sand. The results of the experimental breaching of the sandy dike were discussed and compared with sediment transport rates obtained from various empirical formulae. The comparison shows differences between experimental and calculated sediment transport rates which in all analysed cases indicate overestimation of the breaching rate calculated by empirical formulae.

Klíčová slova

Dam breaching; Physical model; Sediment transport; Specific load

Klíčová slova v angličtině

Dam breaching; Physical model; Sediment transport; Specific load

Autoři

ALHASAN, Z.; JANDORA, J.; ŘÍHA, J.

Rok RIV

2017

Vydáno

14.06.2016

Nakladatel

SPRINGER, VAN GODEWIJCKSTRAAT 30, 3311 GZ DORDRECHT, NETHERLANDS

ISSN

1567-7419

Periodikum

ENVIRONMENTAL FLUID MECHANICS

Svazek

16

Číslo

5

Stát

Nizozemsko

Strany od

997

Strany do

1019

Strany počet

23

URL

http://link.springer.com/article/10.1007/s10652-016-9463-2

BibTex

@article{BUT131981,
  author="Zakaraya {Alhasan} and Jan {Jandora} and Jaromír {Říha}",
  title="Comparison of specific sediment transport rates obtained from empirical formulae and dam breaching experiments",
  journal="ENVIRONMENTAL FLUID MECHANICS",
  year="2016",
  volume="16",
  number="5",
  pages="997--1019",
  doi="10.1007/s10652-016-9463-2",
  issn="1567-7419",
  url="http://link.springer.com/article/10.1007/s10652-016-9463-2"
}