Static and Seismic Assessment of Soil Arching in Piled Embankments

Nimbalkar, S; Meena, NK

Static and Seismic Assessment of Soil Arching in Piled Embankments

Nimbalkar, S

Meena, NK

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Publisher:: Springer Nature
Publication Type:: Chapter
Citation:: Springer Tracts in Civil Engineering, 2022, pp. 263-281
Issue Date:: 2022-01-01

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Field	Value	Language
dc.contributor.author	Nimbalkar, S https://orcid.org/0000-0002-1538-3396
dc.contributor.author	Meena, NK
dc.date.accessioned	2023-03-26T07:28:44Z
dc.date.available	2023-03-26T07:28:44Z
dc.date.issued	2022-01-01
dc.identifier.citation	Springer Tracts in Civil Engineering, 2022, pp. 263-281
dc.identifier.isbn	9789811653117
dc.identifier.uri	http://hdl.handle.net/10453/168397
dc.description.abstract	Piled embankments are widely used to improve the weak soil characteristics and elevate the ground level for the construction of transport corridors on the weak soil. These embankments allow fast construction and a significant reduction in differential settlement. In the pile-supported railway embankment, most of the imposed load is transferred to the rigid pile through a shearing stress mechanism named as “soil arching.” Several studies contribute to the assessment of soil arching under static loading. However, studies dealing with the effect of the seismic excitation on soil arching in pile-supported railway embankment are scarce. The present study is focused on addressing the effects of static loading and seismic excitation using finite element analysis (FEA) in two-dimensional (2D) state of stress. The FEA results indicate that piled embankment properties such as friction angle, pile, and embankment fill modulus should be improved for the efficient mobilization of soil arching. The arching zone is influenced by varying the pile spacing. In addition, the available design approach shows a variation with numerical results. The soil arching is poorly developed indicating insufficient mobilization under the seismic excitation. This in turn results in the transfer of higher stresses to soft soil. The present study thus presents the detrimental effects of earthquake on transport infrastructure projects constructed in soft soil regions.
dc.language	en
dc.publisher	Springer Nature
dc.relation.ispartof	Springer Tracts in Civil Engineering
dc.relation.ispartofseries	Springer Tracts in Civil Engineering
dc.relation.isbasedon	10.1007/978-981-16-5312-4_18
dc.rights	info:eu-repo/semantics/embargoedAccess
dc.rights	Nimbalkar, S., Meena, N.K. (2022). Static and Seismic Assessment of Soil Arching in Piled Embankments. In: Kolathayar, S., Pal, I., Chian, S.C., Mondal, A. (eds) Civil Engineering for Disaster Risk Reduction. Springer Tracts in Civil Engineering . Springer, Singapore. https://doi.org/10.1007/978-981-16-5312-4_18
dc.title	Static and Seismic Assessment of Soil Arching in Piled Embankments
dc.type	Chapter
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 - CBI - Centre for Built Infrastructure
utslib.copyright.status	open_access	*
utslib.copyright.embargo	2023-11-22T00:00:00+1000Z
dc.date.updated	2023-03-26T07:28:42Z
pubs.publication-status	Published

Abstract:

Piled embankments are widely used to improve the weak soil characteristics and elevate the ground level for the construction of transport corridors on the weak soil. These embankments allow fast construction and a significant reduction in differential settlement. In the pile-supported railway embankment, most of the imposed load is transferred to the rigid pile through a shearing stress mechanism named as “soil arching.” Several studies contribute to the assessment of soil arching under static loading. However, studies dealing with the effect of the seismic excitation on soil arching in pile-supported railway embankment are scarce. The present study is focused on addressing the effects of static loading and seismic excitation using finite element analysis (FEA) in two-dimensional (2D) state of stress. The FEA results indicate that piled embankment properties such as friction angle, pile, and embankment fill modulus should be improved for the efficient mobilization of soil arching. The arching zone is influenced by varying the pile spacing. In addition, the available design approach shows a variation with numerical results. The soil arching is poorly developed indicating insufficient mobilization under the seismic excitation. This in turn results in the transfer of higher stresses to soft soil. The present study thus presents the detrimental effects of earthquake on transport infrastructure projects constructed in soft soil regions.

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http://hdl.handle.net/10453/168397