Internal erosion of granular materials – Identification of erodible fine particles as a basis for numerical calculations

Scheuermann, A., Steeb. H. and Kiefer, J. (2010). Internal erosion of granular materials – Identification of erodible fine particles as a basis for numerical calculations. In: Panos Papanastasiou, Euripides Papamichos, Antonios Zervos and Maria Stavropoulou, Proceedings of the 9th HSTAM International Congress on Mechanics: Vardoulakis mini-symposia. 9th International Congress of the Hellenic Society of Theoretical and Applied Mechanics (HSTAM), Limassol, Cyprus, (275-282). 12-14 July 2010.

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Author Scheuermann, A.
Steeb. H.
Kiefer, J.
Title of paper Internal erosion of granular materials – Identification of erodible fine particles as a basis for numerical calculations
Conference name 9th International Congress of the Hellenic Society of Theoretical and Applied Mechanics (HSTAM)
Conference location Limassol, Cyprus
Conference dates 12-14 July 2010
Proceedings title Proceedings of the 9th HSTAM International Congress on Mechanics: Vardoulakis mini-symposia
Place of Publication Cyprus
Publisher Hellenic Society for Theoretical & Applied Mechanics (HSTAM)
Publication Year 2010
Sub-type Fully published paper
Open Access Status
Editor Panos Papanastasiou
Euripides Papamichos
Antonios Zervos
Maria Stavropoulou
Start page 275
End page 282
Total pages 8
Language eng
Abstract/Summary In geohydromechanics internal erosion is a process which is still hardly to be quantified both spatially as well as temporally. The transport of fine particles, which is caused by increased hydraulic gradients, is influenced by the pore structure of the coarse grained fabric. The microstructural information of the pore constriction size distribution (CSD) of the solid skeleton has therefore to be taken into account when internal erosion is analyzed either analytically or numerically. The CSD geometrically defines the amount of fine particles, which potentially can be eroded away for a given hydraulic force. The contribution introduces experimental and numerical calculations which aim at the quantification of the amount of erodible fines. Based on this approach a multiphase continuum-based numerical model is used to back calculate the process of internal erosion for one material of the well-known experimental investigation of Skempton & Brogan (1994)[1].
Keyword Internal erosion
Multiphase model
Pore constriction size distribution
Back analysis
Q-Index Code E1
Q-Index Status Provisional Code
Institutional Status UQ

Document type: Conference Paper
Collection: School of Civil Engineering Publications
 
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Created: Wed, 23 Mar 2011, 16:42:09 EST by Jeannette Watson on behalf of School of Civil Engineering