Quick assessment on susceptibility to suffusion of continuously graded soils by curvature of particle size distribution

To, P., Scheuermann, A., and Williams, D.J. (2018) Quick assessment on susceptibility to suffusion of continuously graded soils by curvature of particle size distribution. Acta Geotechnica, 13 (5). pp. 1241-1248.

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Abstract

As a major type of soil internal erosion, suffusion is causative for many geotechnical problems of earth structures and foundations. Although full laboratory tests are laborious, it is inevitable for susceptible soils. However, a good quick assessment can define those susceptible soils by eliminating quickly very stable and unstable soils from consideration. Traditional assessment methods often correlate and combine some predefined fixed particle sizes representing coarse and fine fractions of soils. This paper presents a novel, simple assessment method for identifying susceptibility to suffusion based on the general curvature of particle size distribution of soils. The further down a particle size distribution departs from its mean line, the more likely it behaves suffusive. The new assessment method has been tested against experimental data, and the results show some good correlation.

Item ID: 54450
Item Type: Article (Research - C1)
ISSN: 1861-1133
Additional Information:

internal erosion, key size method, particle size distribution, risk assessment, sSuffusion

Date Deposited: 19 Jul 2018 02:14
FoR Codes: 09 ENGINEERING > 0905 Civil Engineering > 090501 Civil Geotechnical Engineering @ 80%
09 ENGINEERING > 0905 Civil Engineering > 090503 Construction Materials @ 20%
SEO Codes: 87 CONSTRUCTION > 8702 Construction Design > 870201 Civil Construction Design @ 80%
87 CONSTRUCTION > 8703 Construction Materials Performance and Processes > 870304 Stone, Ceramics and Clay Materials @ 20%
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