Effect of orientation of principal stress axes on cyclic liquefaction potential of soils

A. Diambra; E. Ibraim; J. Camacho-Tauta

Effect of orientation of principal stress axes on cyclic liquefaction potential of soils

A. Diambra
, E. Ibraim
, J. Camacho-Tauta

Research output: Chapter in Book/Report/Conference proceeding › Conference Contribution (Conference Proceeding)

1 Citation (Scopus)

185 Downloads (Pure)

Abstract

Soil liquefaction is a large loss of strength and stiffness induced by pore pressure build up often triggered by cyclic motions such as earthquakes. Its occurrence has historically created major collapses and life losses worldwide. Different laboratory techniques have been employed to estimate the cyclic stress ratio to produce soil liquefaction, imposing variation of either shear and normal stresses. However, rotation of principal stress axes invariably occurs during cyclic earthquake motion but this aspect, which has been noted to have a major effect, has not been yet appropriately investigated. Using the Hollow Cylinder Torsional Apparatus, this research has investigated how varying the orientation of principal stress axes (with respect to the material axes) can affect the liquefaction potential of soils. The results of experimental programme demonstrate that there is a critical orientation of principal stress axes, different from the commonly employed triaxial or simple shear con-ditions, for which a minimum cyclic stress ratio is obtained.

Original language	English
Title of host publication	Proceedings of the XVII European Conference on Soil Mechanics and Geotechnical Engineering, Reykjavík, Iceland
Editors	Haraldur Sigursteinsson, Sigurour Erlingsson, Bjarni Bessason
Publisher	The Icelandic Geotechnical Society
ISBN (Electronic)	978-9935-9436-1-3
ISBN (Print)	978-0-7277-6067-8
Publication status	Published - 6 Sept 2019
Event	17th European Conference on Soil Mechanics and Geotechnical Engineering, ECSMGE 2019 - Reykjavik, Iceland Duration: 1 Sept 2019 → 6 Sept 2019

Publication series

Name	17th European Conference on Soil Mechanics and Geotechnical Engineering, ECSMGE 2019 - Proceedings

Conference

Conference	17th European Conference on Soil Mechanics and Geotechnical Engineering, ECSMGE 2019
Country/Territory	Iceland
City	Reykjavik
Period	1/09/19 → 6/09/19

Bibliographical note

Publisher Copyright:
© 17th European Conference on Soil Mechanics and Geotechnical Engineering, ECSMGE 2019 - Proceedings.

Keywords

Cyclic loading
Hollow cylinder Torsional apparatus
Liquefaction
Multiaxial stress
Sands

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Diambra, A., Ibraim, E., & Camacho-Tauta, J. (2019). Effect of orientation of principal stress axes on cyclic liquefaction potential of soils. In H. Sigursteinsson, S. Erlingsson, & B. Bessason (Eds.), Proceedings of the XVII European Conference on Soil Mechanics and Geotechnical Engineering, Reykjavík, Iceland (17th European Conference on Soil Mechanics and Geotechnical Engineering, ECSMGE 2019 - Proceedings). The Icelandic Geotechnical Society. https://www.ecsmge-2019.com/uploads/2/1/7/9/21790806/proceedings-v1a.pdf

Diambra, A. ; Ibraim, E. ; Camacho-Tauta, J. / Effect of orientation of principal stress axes on cyclic liquefaction potential of soils. Proceedings of the XVII European Conference on Soil Mechanics and Geotechnical Engineering, Reykjavík, Iceland. editor / Haraldur Sigursteinsson ; Sigurour Erlingsson ; Bjarni Bessason. The Icelandic Geotechnical Society, 2019. (17th European Conference on Soil Mechanics and Geotechnical Engineering, ECSMGE 2019 - Proceedings).

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title = "Effect of orientation of principal stress axes on cyclic liquefaction potential of soils",

abstract = "Soil liquefaction is a large loss of strength and stiffness induced by pore pressure build up often triggered by cyclic motions such as earthquakes. Its occurrence has historically created major collapses and life losses worldwide. Different laboratory techniques have been employed to estimate the cyclic stress ratio to produce soil liquefaction, imposing variation of either shear and normal stresses. However, rotation of principal stress axes invariably occurs during cyclic earthquake motion but this aspect, which has been noted to have a major effect, has not been yet appropriately investigated. Using the Hollow Cylinder Torsional Apparatus, this research has investigated how varying the orientation of principal stress axes (with respect to the material axes) can affect the liquefaction potential of soils. The results of experimental programme demonstrate that there is a critical orientation of principal stress axes, different from the commonly employed triaxial or simple shear con-ditions, for which a minimum cyclic stress ratio is obtained.",

keywords = "Cyclic loading, Hollow cylinder Torsional apparatus, Liquefaction, Multiaxial stress, Sands",

author = "A. Diambra and E. Ibraim and J. Camacho-Tauta",

note = "Publisher Copyright: {\textcopyright} 17th European Conference on Soil Mechanics and Geotechnical Engineering, ECSMGE 2019 - Proceedings.; 17th European Conference on Soil Mechanics and Geotechnical Engineering, ECSMGE 2019 ; Conference date: 01-09-2019 Through 06-09-2019",

year = "2019",

month = sep,

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series = "17th European Conference on Soil Mechanics and Geotechnical Engineering, ECSMGE 2019 - Proceedings",

publisher = "The Icelandic Geotechnical Society",

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Diambra, A , Ibraim, E & Camacho-Tauta, J 2019, Effect of orientation of principal stress axes on cyclic liquefaction potential of soils. in H Sigursteinsson, S Erlingsson & B Bessason (eds), Proceedings of the XVII European Conference on Soil Mechanics and Geotechnical Engineering, Reykjavík, Iceland. 17th European Conference on Soil Mechanics and Geotechnical Engineering, ECSMGE 2019 - Proceedings, The Icelandic Geotechnical Society, 17th European Conference on Soil Mechanics and Geotechnical Engineering, ECSMGE 2019, Reykjavik, Iceland, 1/09/19. <https://www.ecsmge-2019.com/uploads/2/1/7/9/21790806/proceedings-v1a.pdf>

Effect of orientation of principal stress axes on cyclic liquefaction potential of soils. / Diambra, A.; Ibraim, E.; Camacho-Tauta, J.
Proceedings of the XVII European Conference on Soil Mechanics and Geotechnical Engineering, Reykjavík, Iceland. ed. / Haraldur Sigursteinsson; Sigurour Erlingsson; Bjarni Bessason. The Icelandic Geotechnical Society, 2019. (17th European Conference on Soil Mechanics and Geotechnical Engineering, ECSMGE 2019 - Proceedings).

Research output: Chapter in Book/Report/Conference proceeding › Conference Contribution (Conference Proceeding)

TY - GEN

T1 - Effect of orientation of principal stress axes on cyclic liquefaction potential of soils

AU - Diambra, A.

AU - Ibraim, E.

AU - Camacho-Tauta, J.

N1 - Publisher Copyright: © 17th European Conference on Soil Mechanics and Geotechnical Engineering, ECSMGE 2019 - Proceedings.

PY - 2019/9/6

Y1 - 2019/9/6

N2 - Soil liquefaction is a large loss of strength and stiffness induced by pore pressure build up often triggered by cyclic motions such as earthquakes. Its occurrence has historically created major collapses and life losses worldwide. Different laboratory techniques have been employed to estimate the cyclic stress ratio to produce soil liquefaction, imposing variation of either shear and normal stresses. However, rotation of principal stress axes invariably occurs during cyclic earthquake motion but this aspect, which has been noted to have a major effect, has not been yet appropriately investigated. Using the Hollow Cylinder Torsional Apparatus, this research has investigated how varying the orientation of principal stress axes (with respect to the material axes) can affect the liquefaction potential of soils. The results of experimental programme demonstrate that there is a critical orientation of principal stress axes, different from the commonly employed triaxial or simple shear con-ditions, for which a minimum cyclic stress ratio is obtained.

AB - Soil liquefaction is a large loss of strength and stiffness induced by pore pressure build up often triggered by cyclic motions such as earthquakes. Its occurrence has historically created major collapses and life losses worldwide. Different laboratory techniques have been employed to estimate the cyclic stress ratio to produce soil liquefaction, imposing variation of either shear and normal stresses. However, rotation of principal stress axes invariably occurs during cyclic earthquake motion but this aspect, which has been noted to have a major effect, has not been yet appropriately investigated. Using the Hollow Cylinder Torsional Apparatus, this research has investigated how varying the orientation of principal stress axes (with respect to the material axes) can affect the liquefaction potential of soils. The results of experimental programme demonstrate that there is a critical orientation of principal stress axes, different from the commonly employed triaxial or simple shear con-ditions, for which a minimum cyclic stress ratio is obtained.

KW - Cyclic loading

KW - Hollow cylinder Torsional apparatus

KW - Liquefaction

KW - Multiaxial stress

KW - Sands

UR - https://www.scopus.com/pages/publications/85208459293

M3 - Conference Contribution (Conference Proceeding)

AN - SCOPUS:85208459293

SN - 978-0-7277-6067-8

T3 - 17th European Conference on Soil Mechanics and Geotechnical Engineering, ECSMGE 2019 - Proceedings

BT - Proceedings of the XVII European Conference on Soil Mechanics and Geotechnical Engineering, Reykjavík, Iceland

A2 - Sigursteinsson, Haraldur

A2 - Erlingsson, Sigurour

A2 - Bessason, Bjarni

PB - The Icelandic Geotechnical Society

T2 - 17th European Conference on Soil Mechanics and Geotechnical Engineering, ECSMGE 2019

Y2 - 1 September 2019 through 6 September 2019

ER -

Diambra A , Ibraim E, Camacho-Tauta J. Effect of orientation of principal stress axes on cyclic liquefaction potential of soils. In Sigursteinsson H, Erlingsson S, Bessason B, editors, Proceedings of the XVII European Conference on Soil Mechanics and Geotechnical Engineering, Reykjavík, Iceland. The Icelandic Geotechnical Society. 2019. (17th European Conference on Soil Mechanics and Geotechnical Engineering, ECSMGE 2019 - Proceedings).

Effect of orientation of principal stress axes on cyclic liquefaction potential of soils

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Keywords

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