Articles | Volume 4, issue 2
https://doi.org/10.5194/esurf-4-461-2016
© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.
the Creative Commons Attribution 3.0 License.
https://doi.org/10.5194/esurf-4-461-2016
© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.
the Creative Commons Attribution 3.0 License.
Research article
| 
09 Jun 2016
Research article |
| 09 Jun 2016
Armor breakup and reformation in a degradational laboratory experiment
Clara Orrú
CORRESPONDING AUTHOR
Department of Hydraulic Engineering, Faculty of Civil Engineering and
Geosciences, Delft University of Technology, P.O. Box 5048, 2600
GA, Delft, the Netherlands
Astrid Blom
Department of Hydraulic Engineering, Faculty of Civil Engineering and
Geosciences, Delft University of Technology, P.O. Box 5048, 2600
GA, Delft, the Netherlands
Wim S. J. Uijttewaal
Department of Hydraulic Engineering, Faculty of Civil Engineering and
Geosciences, Delft University of Technology, P.O. Box 5048, 2600
GA, Delft, the Netherlands
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Cited
15 citations as recorded by crossref.
- Co‐evolution of coarse grain structuring and bed roughness in response to episodic sediment supply in an experimental aggrading channel M. Hassan et al. 10.1002/esp.4788
- Experimental study on the critical breakup condition of a static armour layer Q. Wang et al. 10.1002/rra.3759
- River-bed armouring as a granular segregation phenomenon B. Ferdowsi et al. 10.1038/s41467-017-01681-3
- A Sand‐Gravel Gilbert Delta Subject to Base Level Change V. Chavarrías et al. 10.1029/2017JF004428
- Textural signatures of sediment supply in gravel-bed rivers: Revisiting the armour ratio D. Vázquez-Tarrío et al. 10.1016/j.earscirev.2020.103211
- Numerical Study of Alternate Bars in Alluvial Channels With Nonuniform Sediment F. Cordier et al. 10.1029/2017WR022420
- Bed-Sediment Transport Conditions along the Sagavanirktok River in Northern Alaska, USA H. Toniolo 10.3390/w12030774
- Effects of bed-material gradation on clear water scour at single and group of piles S. Okhravi et al. 10.2478/johh-2021-0036
- Calculation Model to Predict the Static Armor Layer Size Distribution After the Reconstruction of a Gravel River Bed Q. Wang et al. 10.3389/feart.2021.660216
- Impact of Unsteady Flow Events on Bedload Transport: A Review of Laboratory Experiments M. Mrokowska & P. Rowiński 10.3390/w11050907
- Structural Properties of the Static Armor during Formation and Reestablishment in Gravel-Bed Rivers Q. Wang et al. 10.3390/w12071845
- Effect of bed shear stress on the mobile armor layer at the riverbed A. Negara et al. 10.1088/1755-1315/1195/1/012057
- Laboratory study on the evolution of gravel-bed surfaces in bed armoring processes S. Zhang et al. 10.1016/j.jhydrol.2020.125751
- A regularization strategy for modeling mixed-sediment river morphodynamics V. Chavarrías et al. 10.1016/j.advwatres.2019.04.001
- How Large Immobile Sediments in Gravel Bed Rivers Impact Sediment Transport and Bed Morphology C. McKie et al. 10.1061/(ASCE)HY.1943-7900.0001842
15 citations as recorded by crossref.
- Co‐evolution of coarse grain structuring and bed roughness in response to episodic sediment supply in an experimental aggrading channel M. Hassan et al. 10.1002/esp.4788
- Experimental study on the critical breakup condition of a static armour layer Q. Wang et al. 10.1002/rra.3759
- River-bed armouring as a granular segregation phenomenon B. Ferdowsi et al. 10.1038/s41467-017-01681-3
- A Sand‐Gravel Gilbert Delta Subject to Base Level Change V. Chavarrías et al. 10.1029/2017JF004428
- Textural signatures of sediment supply in gravel-bed rivers: Revisiting the armour ratio D. Vázquez-Tarrío et al. 10.1016/j.earscirev.2020.103211
- Numerical Study of Alternate Bars in Alluvial Channels With Nonuniform Sediment F. Cordier et al. 10.1029/2017WR022420
- Bed-Sediment Transport Conditions along the Sagavanirktok River in Northern Alaska, USA H. Toniolo 10.3390/w12030774
- Effects of bed-material gradation on clear water scour at single and group of piles S. Okhravi et al. 10.2478/johh-2021-0036
- Calculation Model to Predict the Static Armor Layer Size Distribution After the Reconstruction of a Gravel River Bed Q. Wang et al. 10.3389/feart.2021.660216
- Impact of Unsteady Flow Events on Bedload Transport: A Review of Laboratory Experiments M. Mrokowska & P. Rowiński 10.3390/w11050907
- Structural Properties of the Static Armor during Formation and Reestablishment in Gravel-Bed Rivers Q. Wang et al. 10.3390/w12071845
- Effect of bed shear stress on the mobile armor layer at the riverbed A. Negara et al. 10.1088/1755-1315/1195/1/012057
- Laboratory study on the evolution of gravel-bed surfaces in bed armoring processes S. Zhang et al. 10.1016/j.jhydrol.2020.125751
- A regularization strategy for modeling mixed-sediment river morphodynamics V. Chavarrías et al. 10.1016/j.advwatres.2019.04.001
- How Large Immobile Sediments in Gravel Bed Rivers Impact Sediment Transport and Bed Morphology C. McKie et al. 10.1061/(ASCE)HY.1943-7900.0001842
Latest update: 14 Dec 2024
Short summary
Our study focuses on armor breakup and reformation in a laboratory experiment under conditions with limited sediment supply. We developed a novel technique that allows for measurement of the temporal and spatial changes of the bed surface texture during flow. The armor, which was formed under base flow conditions, broke up under a higher flow rate, which led to a fining of the bed surface and local degradation. Under continued peak flow a new armor formed that was coarser than the initial one.
Our study focuses on armor breakup and reformation in a laboratory experiment under conditions...
