Analysis of development and depth of backward erosion pipes in the presence of a coarse sand barrier

Akrami, Sepideh; Bezuijen, Adam; Beek, Vera van; Rosenbrand, Esther; Terwindt, Jarno; Förster, Ulrich

doi:10.1007/s11440-020-01053-0

Cited by 10 publications

(3 citation statements)

References 9 publications

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“…The experiments include three fine, uniform sands with characteristics as shown in Table 1. The FPH sand was also used in Pol et al [36]; the Baskarp B25 sand was used in Akrami et al [2] and Rosenbrand et al [42]. Grain sizes were determined by dry sieving.…”

Section: Materials and Measurement Techniquesmentioning

confidence: 99%

Temporal evolution of backward erosion piping in small-scale experiments

et al. 2022

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Backward erosion piping (BEP) is a form of internal erosion which can lead to failure of levees and dams. Most research focused on the critical head difference at which piping failure occurs. Two aspects have received less attention, namely (1) the temporal evolution of piping and (2) the local hydraulic conditions in the pipe and at the pipe tip. We present small-scale experiments with local pressure measurements in the pipe during equilibrium and pipe progression for different sands and degrees of hydraulic loading. The experiments confirm a positive relation between progression rate and grain size as well as the degree of hydraulic overloading. Furthermore, the analysis of local hydraulic conditions shows that the rate of BEP progression can be better explained by the bed shear stress and sediment transport in the pipe than by the seepage velocity at the pipe tip. The experiments show how different processes contribute to the piping process and these insights provide a first empirical basis for modeling pipe development using coupled seepage-sediment transport equations.

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Section: Materials and Measurement Techniquesmentioning

confidence: 99%

Temporal evolution of backward erosion piping in small-scale experiments

et al. 2022

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“…The test reported here was conducted on Baskarp B25 sand, which has also been used previously by Akrami et al 36 and Rosenbrand et al 37 . The characteristics of the sand are given in Table 1.…”

Section: Descriptionmentioning

confidence: 99%

Errors in finite element analysis of backward erosion piping

Robbins

Beek

Pol

et al. 2022

Geomechanics for Energy and the Environment

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“…The subsequent development of the process involves enlargement of the initial eroded cavity, backward expansion along pipes and, potentially, ultimate rupture of the structure [10]. Strengthening of the downstream cover layer can be used as preventive measure against backward erosion piping, for instance by inserting a coarse sand barrier [15,16]. The inherent or induced cohesion within this cover-layer may also govern the critical stress threshold for the onset of backward erosion piping and will be the subject of this study in the specific case of solid cohesion, i.e.…”

Section: Introductionmentioning

confidence: 99%

Hydraulic failure of granular materials with artificial cementation

Farhat,

Philippe,

Luu

et al. 2024

Phys. Rev. Fluids

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Analysis of development and depth of backward erosion pipes in the presence of a coarse sand barrier

Cited by 10 publications

References 9 publications

Temporal evolution of backward erosion piping in small-scale experiments

Temporal evolution of backward erosion piping in small-scale experiments

Errors in finite element analysis of backward erosion piping

Hydraulic failure of granular materials with artificial cementation

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