Probability of transportation of loose particles in suffusion assessment by self-filtration criteria

To, Huu Duc, Scheuermann, Alexander, and Galindo-Torres, Sergio A. (2016) Probability of transportation of loose particles in suffusion assessment by self-filtration criteria. Journal of Geotechnical and Geoenvironmental Engineering, 142 (2). 04015078. pp. 1-10.

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Abstract

Suffusion occurs when soil particles are loosened, detached, and transported away by seepage flow through a series of pores and pore constrictions. While traditional suffusion assessment methods are often based on particle size distribution analysis only, modern assessment methods are focused on constriction size distributions, which are derived from particle size distributions based on certain assumptions. This paper provides a new assessment method, which employs the probability of loose particles being transported to the next pore. The new approach can introduce the influence of an overlapping zone between the two fractions of loose particles and soil primary fabric. This overlapping zone was often overlooked in prior studies. The constriction size distribution of the primary fabric can be calculated approximately by two-dimensional or three-dimensional methods. The three-dimensional method used in the presented study even offers the opportunity to study the influence of particle arrangements on suffusion. The results of the new assessment methods show satisfactory agreement with experimental results.

Item ID: 46002
Item Type: Article (Research - C1)
ISSN: 1943-5606
Keywords: suffusion, probabilistic method, sphere packing, constriction size distribution, primary fabric, internal erosion
Funders: Vietnamese Ministry of Education and Training (MOET), University of Queensland (UQ), Australian Research Council (ARC)
Projects and Grants: ARC Discovery Project DP120102188
Date Deposited: 10 Oct 2016 00:29
FoR Codes: 09 ENGINEERING > 0905 Civil Engineering > 090501 Civil Geotechnical Engineering @ 100%
SEO Codes: 87 CONSTRUCTION > 8702 Construction Design > 870201 Civil Construction Design @ 100%
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