Beyond Predicting Stiffness of Disturbed Foundation

Research output: Contribution to book/anthology/report/conference proceedingArticle in proceedingResearchpeer-review

Abstract

Tests were executed to analyze the behavior of disturbed foundation stiffness. Test results reveal a causal link between stiffness hysteresis loops and applied deformation amplitude. By manipulating the applied deformation amplitude, the size and position of stiffness hysteresis loops is plausible to control. The initial stiffness curve can be erased (disturbed) and reset afterwards. Also, cyclic stiffness curves of various size can be stabilized and repositioned. Such behavior is not predicted or accounted for by conventional models.
Original languageEnglish
Title of host publicationThe Proceedings of The Twenty-ninth (2019) International Offshore and Polar Engineering Conference
EditorsJin S. Chung, Odd M. Akselsen, HyunWoo Jin, Hiroyasu Kawai, Yongwon Lee, Dmitri Matskevitch, Suak Ho Van, Decheng Wan, Alan M. Wang, Satoru Yamaguchi
Volume4
PublisherInternational Society of Offshore & Polar Engineers
Pages4998-5004
ISBN (Electronic)978-1-880653-85-2
Publication statusAccepted/In press - 2019
EventThe International Society of Offshore and Polar Engineers 2019 - Honolulu, Hawaii, United States
Duration: 16 Jun 201919 Jun 2019
Conference number: 29

Conference

ConferenceThe International Society of Offshore and Polar Engineers 2019
Number29
CountryUnited States
CityHonolulu, Hawaii
Period16/06/201919/06/2019
SeriesProceedings of the International Offshore and Polar Engineering Conference
Number2019
Volume29
ISSN1098-6189

Fingerprint

Stiffness
Hysteresis loops

Keywords

  • Geotechnics
  • Foundation design
  • Disturbed soil
  • Dynamic stiffness
  • Prototype testing
  • Mono bucket
  • Strain space

Cite this

Sabaliauskas, T., & Ibsen, L. B. (Accepted/In press). Beyond Predicting Stiffness of Disturbed Foundation. In J. S. Chung, O. M. Akselsen, H. Jin, H. Kawai, Y. Lee, D. Matskevitch, S. H. Van, D. Wan, A. M. Wang, ... S. Yamaguchi (Eds.), The Proceedings of The Twenty-ninth (2019) International Offshore and Polar Engineering Conference (Vol. 4, pp. 4998-5004). International Society of Offshore & Polar Engineers. Proceedings of the International Offshore and Polar Engineering Conference, No. 2019, Vol.. 29
Sabaliauskas, Tomas ; Ibsen, Lars Bo. / Beyond Predicting Stiffness of Disturbed Foundation. The Proceedings of The Twenty-ninth (2019) International Offshore and Polar Engineering Conference. editor / Jin S. Chung ; Odd M. Akselsen ; HyunWoo Jin ; Hiroyasu Kawai ; Yongwon Lee ; Dmitri Matskevitch ; Suak Ho Van ; Decheng Wan ; Alan M. Wang ; Satoru Yamaguchi. Vol. 4 International Society of Offshore & Polar Engineers, 2019. pp. 4998-5004 (Proceedings of the International Offshore and Polar Engineering Conference; No. 2019, Vol. 29).
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title = "Beyond Predicting Stiffness of Disturbed Foundation",
abstract = "Tests were executed to analyze the behavior of disturbed foundation stiffness. Test results reveal a causal link between stiffness hysteresis loops and applied deformation amplitude. By manipulating the applied deformation amplitude, the size and position of stiffness hysteresis loops is plausible to control. The initial stiffness curve can be erased (disturbed) and reset afterwards. Also, cyclic stiffness curves of various size can be stabilized and repositioned. Such behavior is not predicted or accounted for by conventional models.",
keywords = "Geotechnics, Foundation design, Disturbed soil, Dynamic stiffness, Prototype testing, Mono bucket, Strain space, Suction bucket, t–z curves, Numerical modeling, Friction, Offshore foundation, Sand",
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Sabaliauskas, T & Ibsen, LB 2019, Beyond Predicting Stiffness of Disturbed Foundation. in JS Chung, OM Akselsen, H Jin, H Kawai, Y Lee, D Matskevitch, SH Van, D Wan, AM Wang & S Yamaguchi (eds), The Proceedings of The Twenty-ninth (2019) International Offshore and Polar Engineering Conference. vol. 4, International Society of Offshore & Polar Engineers, Proceedings of the International Offshore and Polar Engineering Conference, no. 2019, vol. 29, pp. 4998-5004, The International Society of Offshore and Polar Engineers 2019, Honolulu, Hawaii, United States, 16/06/2019.

Beyond Predicting Stiffness of Disturbed Foundation. / Sabaliauskas, Tomas; Ibsen, Lars Bo.

The Proceedings of The Twenty-ninth (2019) International Offshore and Polar Engineering Conference. ed. / Jin S. Chung; Odd M. Akselsen; HyunWoo Jin; Hiroyasu Kawai; Yongwon Lee; Dmitri Matskevitch; Suak Ho Van; Decheng Wan; Alan M. Wang; Satoru Yamaguchi. Vol. 4 International Society of Offshore & Polar Engineers, 2019. p. 4998-5004 (Proceedings of the International Offshore and Polar Engineering Conference; No. 2019, Vol. 29).

Research output: Contribution to book/anthology/report/conference proceedingArticle in proceedingResearchpeer-review

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AU - Sabaliauskas, Tomas

AU - Ibsen, Lars Bo

PY - 2019

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N2 - Tests were executed to analyze the behavior of disturbed foundation stiffness. Test results reveal a causal link between stiffness hysteresis loops and applied deformation amplitude. By manipulating the applied deformation amplitude, the size and position of stiffness hysteresis loops is plausible to control. The initial stiffness curve can be erased (disturbed) and reset afterwards. Also, cyclic stiffness curves of various size can be stabilized and repositioned. Such behavior is not predicted or accounted for by conventional models.

AB - Tests were executed to analyze the behavior of disturbed foundation stiffness. Test results reveal a causal link between stiffness hysteresis loops and applied deformation amplitude. By manipulating the applied deformation amplitude, the size and position of stiffness hysteresis loops is plausible to control. The initial stiffness curve can be erased (disturbed) and reset afterwards. Also, cyclic stiffness curves of various size can be stabilized and repositioned. Such behavior is not predicted or accounted for by conventional models.

KW - Geotechnics

KW - Foundation design

KW - Disturbed soil

KW - Dynamic stiffness

KW - Prototype testing

KW - Mono bucket

KW - Strain space

KW - Suction bucket

KW - t–z curves

KW - Numerical modeling

KW - Friction

KW - Offshore foundation

KW - Sand

UR - http://www.isope.org/index.php/proceedings-isope/

M3 - Article in proceeding

VL - 4

T3 - Proceedings of the International Offshore and Polar Engineering Conference

SP - 4998

EP - 5004

BT - The Proceedings of The Twenty-ninth (2019) International Offshore and Polar Engineering Conference

A2 - Chung, Jin S.

A2 - Akselsen, Odd M.

A2 - Jin, HyunWoo

A2 - Kawai, Hiroyasu

A2 - Lee, Yongwon

A2 - Matskevitch, Dmitri

A2 - Van, Suak Ho

A2 - Wan, Decheng

A2 - Wang, Alan M.

A2 - Yamaguchi, Satoru

PB - International Society of Offshore & Polar Engineers

ER -

Sabaliauskas T, Ibsen LB. Beyond Predicting Stiffness of Disturbed Foundation. In Chung JS, Akselsen OM, Jin H, Kawai H, Lee Y, Matskevitch D, Van SH, Wan D, Wang AM, Yamaguchi S, editors, The Proceedings of The Twenty-ninth (2019) International Offshore and Polar Engineering Conference. Vol. 4. International Society of Offshore & Polar Engineers. 2019. p. 4998-5004. (Proceedings of the International Offshore and Polar Engineering Conference; No. 2019, Vol. 29).