2010
DOI: 10.3844/ajeassp.2010.734.739
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Effect of Wall Roughness and Concentration of Clay on Erosion in the Hole Erosion Test

Abstract: Problem statement: Internal soil erosion is a real threat for hydraulic infrastructures. In its final stage it develops in piping involving the formation and progression of a continuous void inside the soil between the upstream and downstream sides. The hole erosion test was introduced to characterize kinematics of piping in terms of the time left to rupture. Actual modeling approaches of this test are essentially one dimensional. The wall shear stress generated by the flow is assume… Show more

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Cited by 3 publications
(3 citation statements)
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References 14 publications
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“…This method is preferred because of its simplicity, ease, and lower cost. Moreover, it is considered the best method to replicate piping erosion behavior [42]. The HET apparatus and schematic diagram are displayed in Figure 1b,c, respectively.…”
Section: Specimen Preparationmentioning
confidence: 99%
“…This method is preferred because of its simplicity, ease, and lower cost. Moreover, it is considered the best method to replicate piping erosion behavior [42]. The HET apparatus and schematic diagram are displayed in Figure 1b,c, respectively.…”
Section: Specimen Preparationmentioning
confidence: 99%
“…Numerical simulations and a comparison with experimental data were carried out by (Bonelli et al 2006), while simulations and a comparison with Mostiště dam incident data were carried out by (Riha and Svancara 2007). To improve knowledge about the conditions in a pre-formed hole, finite element numerical simulation of water/soil interaction along such a hole was performed by Benaissa et al (2010Benaissa et al ( , 2011. The modelling results showed non-linear pressure distribution along the pipe and significantly higher shear stresses at the entrance part of the hole, probably corresponding to the entrance energy loss.…”
Section: Introductionmentioning
confidence: 99%
“…More recent work has been published, as for example by Benaissa et al (2010), who investigated the effect of wall roughness (in combination with the appearance of clay) and soil erosion at the fluid/soil interface. Other authors have focused on the surface roughness of metals, such as steel (Sahin and Motorcu, 2004;Onwubolu, 2005;Al-Qawabeha, 2007;Iqbal and Khan, 2010).…”
Section: Introductionmentioning
confidence: 99%