A new simple model for the determination of the pore constriction size distribution

To, Huu Duc, Scheuermann, Alexander and Williams, David J. (2012). A new simple model for the determination of the pore constriction size distribution. In: ICSE-6: 6th International Conference on Scour and Erosion proceedings. 6th International Conference on Scour and Erosion (ICSE-6), Paris, France, (295-303). 27 - 31 August 2012.

Attached Files (Some files may be inaccessible until you login with your UQ eSpace credentials)
Name Description MIMEType Size Downloads
Author To, Huu Duc
Scheuermann, Alexander
Williams, David J.
Title of paper A new simple model for the determination of the pore constriction size distribution
Conference name 6th International Conference on Scour and Erosion (ICSE-6)
Conference location Paris, France
Conference dates 27 - 31 August 2012
Proceedings title ICSE-6: 6th International Conference on Scour and Erosion proceedings
Place of Publication Paris, France
Publisher Société Hydrotechnique de France (SHF)
Publication Year 2012
Sub-type Fully published paper
ISBN 9782906831902
Start page 295
End page 303
Total pages 9
Collection year 2013
Language eng
Abstract/Summary Suffusion is a process in which particles are removed from pores and transported through the pore constrictions of a solid skeleton. The quantitative analysis of the suffusion process at the particle scale is difficult, because it is not necessarily clear which part of the particles forms the solid skeleton, and which part can be removed. Furthermore, there is the enormous number and various shapes of particles. Therefore, existing computational programs based on DEM often take days to create and to compute a pore model for this problem. This paper presents a new approach based on simple sphere packing with three acceptable assumptions, namely the occurrence of only spherical particles, the assumption of a minimum number of contacts with neighbouring particles, and the substitution of the fraction of small particles of a soil with a non-spherical body. By introduction of the second assumption the calculation speed is significantly improved. Furthermore, three filling types are introduced in the model, which are random, descending and layer-wise. The new approach allows the investigation of the relationship between porosity and probability of suffusion. The contribution will introduce a further understanding on primary fabrics size and point out difficulties in application of filter criterion for suffusion assessment according to the German guideline [MSD, 2005].
Q-Index Code E1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Conference Paper
Collections: School of Civil Engineering Publications
Official 2013 Collection
 
Versions
Version Filter Type
Citation counts: Google Scholar Search Google Scholar
Created: Mon, 25 Mar 2013, 14:48:49 EST by Julie Hunter on behalf of School of Civil Engineering