Investigation of the backward erosion mechanism in small scale experiments
- Author
- VM Van Beek, Kristine Vandenboer (UGent) , HM Van Essen and Adam Bezuijen (UGent)
- Organization
- Abstract
- Currently, the most advanced prediction model for backward erosion piping is the two-dimensional Sellmeijer model that relates the equilibrium of forces on the grains at the pipe bottom to the pipe flow and ground water flow, based on mainly theoretical formulae. Yet the suitability of theoretical formulae for pipe flow and erosion under these specific conditions has not been verified experimentally. To understand and validate the erosion mechanism at micro-scale and to model the hydraulic conditions in and around the pipe in a 3D situation, the characteristics of the pipes and the erosion in the pipes have been investigated in small-scale laboratory experiments. The experiments indicate that the pipe depth and the pipe gradient remain the same during lengthening. The results serve as input for 3D groundwater flow calculations to obtain a better understanding of the erosion mechanism. The combined numerical and experimental results indicate that it is likely that the erosion at the pipe tip is triggered by loosening of sand from the pipe tip and walls as a result of water inflow rather than scour at the pipe bottom.
- Keywords
- scale experiments, erosion
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Citation
Please use this url to cite or link to this publication: http://hdl.handle.net/1854/LU-4243593
- MLA
- Van Beek, VM, et al. “Investigation of the Backward Erosion Mechanism in Small Scale Experiments.” 8th International Conference on Physical Modelling in Geotechnics, Proceedings, edited by Christophe Gaudin and David White, vol. 2, CRC Press - Taylor and Francis Group, 2014, pp. 855–61.
- APA
- Van Beek, V., Vandenboer, K., Van Essen, H., & Bezuijen, A. (2014). Investigation of the backward erosion mechanism in small scale experiments. In C. Gaudin & D. White (Eds.), 8th International Conference on Physical modelling in Geotechnics, Proceedings (Vol. 2, pp. 855–861). Leiden, The Netherlands: CRC Press - Taylor and Francis Group.
- Chicago author-date
- Van Beek, VM, Kristine Vandenboer, HM Van Essen, and Adam Bezuijen. 2014. “Investigation of the Backward Erosion Mechanism in Small Scale Experiments.” In 8th International Conference on Physical Modelling in Geotechnics, Proceedings, edited by Christophe Gaudin and David White, 2:855–61. Leiden, The Netherlands: CRC Press - Taylor and Francis Group.
- Chicago author-date (all authors)
- Van Beek, VM, Kristine Vandenboer, HM Van Essen, and Adam Bezuijen. 2014. “Investigation of the Backward Erosion Mechanism in Small Scale Experiments.” In 8th International Conference on Physical Modelling in Geotechnics, Proceedings, ed by. Christophe Gaudin and David White, 2:855–861. Leiden, The Netherlands: CRC Press - Taylor and Francis Group.
- Vancouver
- 1.Van Beek V, Vandenboer K, Van Essen H, Bezuijen A. Investigation of the backward erosion mechanism in small scale experiments. In: Gaudin C, White D, editors. 8th International Conference on Physical modelling in Geotechnics, Proceedings. Leiden, The Netherlands: CRC Press - Taylor and Francis Group; 2014. p. 855–61.
- IEEE
- [1]V. Van Beek, K. Vandenboer, H. Van Essen, and A. Bezuijen, “Investigation of the backward erosion mechanism in small scale experiments,” in 8th International Conference on Physical modelling in Geotechnics, Proceedings, Perth Australia, 2014, vol. 2, pp. 855–861.
@inproceedings{4243593,
abstract = {{Currently, the most advanced prediction model for backward erosion piping is the two-dimensional Sellmeijer model that relates the equilibrium of forces on the grains at the pipe bottom to the pipe flow and ground water flow, based on mainly theoretical formulae. Yet the suitability of theoretical formulae for pipe flow and erosion under these specific conditions has not been verified experimentally. To understand and validate the erosion mechanism at micro-scale and to model the hydraulic conditions in and around the pipe in a 3D situation, the characteristics of the pipes and the erosion in the pipes have been investigated in small-scale laboratory experiments. The experiments indicate that the pipe depth and the pipe gradient remain the same during lengthening. The results serve as input for 3D groundwater flow calculations to obtain a better understanding of the erosion mechanism. The combined numerical and experimental results indicate that it is likely that the erosion at the pipe tip is triggered by loosening of sand from the pipe tip and walls as a result of water inflow rather than scour at the pipe bottom.}},
author = {{Van Beek, VM and Vandenboer, Kristine and Van Essen, HM and Bezuijen, Adam}},
booktitle = {{8th International Conference on Physical modelling in Geotechnics, Proceedings}},
editor = {{Gaudin, Christophe and White, David}},
isbn = {{9781138001527}},
keywords = {{scale experiments,erosion}},
language = {{eng}},
location = {{Perth Australia}},
pages = {{855--861}},
publisher = {{CRC Press - Taylor and Francis Group}},
title = {{Investigation of the backward erosion mechanism in small scale experiments}},
volume = {{2}},
year = {{2014}},
}