Experimental Study on Migration Behavior of Sandy Silt under Cyclic Load

Gao, F; Zhang, S; He, X; Sheng, D

Experimental Study on Migration Behavior of Sandy Silt under Cyclic Load

Gao, F Zhang, S He, X

Sheng, D

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Publisher:: ASCE-AMER SOC CIVIL ENGINEERS
Publication Type:: Journal Article
Citation:: Journal of Geotechnical and Geoenvironmental Engineering, 2022, 148, (5)
Issue Date:: 2022-05-01

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Field	Value	Language
dc.contributor.author	Gao, F
dc.contributor.author	Zhang, S
dc.contributor.author	He, X https://orcid.org/0000-0001-5336-3663
dc.contributor.author	Sheng, D https://orcid.org/0000-0002-1665-6931
dc.date.accessioned	2023-04-06T04:42:53Z
dc.date.available	2023-04-06T04:42:53Z
dc.date.issued	2022-05-01
dc.identifier.citation	Journal of Geotechnical and Geoenvironmental Engineering, 2022, 148, (5)
dc.identifier.issn	1090-0241
dc.identifier.issn	1943-5606
dc.identifier.uri	http://hdl.handle.net/10453/169327
dc.description.abstract	This paper presents experimental investigation into the effects of particle size distribution of subgrade soil on mud pumping. The results show that subgrade soils with higher fine contents do not necessarily lead to more serious mud pumping. A soil with a higher silt content tends to cause the formation of a less permeable interlayer at the bottom of the ballast, which effectively reduces the particle migration magnitude. Increasing the median particle size (d50) or reducing the coefficient of uniformity (d60/d10) of the studied sandy silt promotes the migration distance of particles. While mud pumping is essentially an internal erosion problem caused by cyclic loads, existing filter theories do not directly apply to mud pumping. The findings from this study can help selecting proper rail embankment fills to reduce mud pumping.
dc.language	English
dc.publisher	ASCE-AMER SOC CIVIL ENGINEERS
dc.relation	National Natural Science Foundation of ChinaU1834206
dc.relation.ispartof	Journal of Geotechnical and Geoenvironmental Engineering
dc.relation.isbasedon	10.1061/(ASCE)GT.1943-5606.0002796
dc.rights	info:eu-repo/semantics/closedAccess
dc.subject	0905 Civil Engineering, 0907 Environmental Engineering
dc.subject.classification	Geological & Geomatics Engineering
dc.title	Experimental Study on Migration Behavior of Sandy Silt under Cyclic Load
dc.type	Journal Article
utslib.citation.volume	148
utslib.for	0905 Civil Engineering
utslib.for	0907 Environmental Engineering
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology/School of Civil and Environmental Engineering
pubs.organisational-group	/University of Technology Sydney/Strength - CAMGIS - Centre for Advanced Modelling and Geospatial lnformation Systems
utslib.copyright.status	closed_access	*
dc.date.updated	2023-04-06T04:42:52Z
pubs.issue	5
pubs.publication-status	Published
pubs.volume	148
utslib.citation.issue	5

Abstract:

This paper presents experimental investigation into the effects of particle size distribution of subgrade soil on mud pumping. The results show that subgrade soils with higher fine contents do not necessarily lead to more serious mud pumping. A soil with a higher silt content tends to cause the formation of a less permeable interlayer at the bottom of the ballast, which effectively reduces the particle migration magnitude. Increasing the median particle size (d50) or reducing the coefficient of uniformity (d60/d10) of the studied sandy silt promotes the migration distance of particles. While mud pumping is essentially an internal erosion problem caused by cyclic loads, existing filter theories do not directly apply to mud pumping. The findings from this study can help selecting proper rail embankment fills to reduce mud pumping.

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http://hdl.handle.net/10453/169327