Evaluation of p-y approaches for large diameter monopiles in sand

Research output: Chapter in book/report/conference proceedingConference contributionResearchpeer review

Authors

  • Martin Achmus
  • Klaus Thieken
  • Katrin Lemke
View graph of relations

Details

Original languageEnglish
Title of host publicationProceedings of the 24th International Ocean and Polar Engineering Conference, ISOPE Busan
Pages531-539
Number of pages9
Publication statusPublished - 2014
Event24th International Ocean and Polar Engineering Conference, ISOPE 2014 Busan - Busan, Korea, Republic of
Duration: 15 Jun 201420 Jun 2014

Publication series

NameProceedings of the International Offshore and Polar Engineering Conference
ISSN (Print)1098-6189
ISSN (electronic)1555-1792

Abstract

For the design of monopile foundations, the soil resistance is usually modeled by the subgrade reaction method. The commonly used p-y approach described in the offshore guidelines is generally assumed to be sufficiently accurate for pile diameters D ≤ 2 m. However, several investigations indicate that the pile deflections of large diameter monopiles are underestimated for service loads and overestimated for small operational loads. A three dimensional finite element model is presented to evaluate the currently used p-y approach for sand soils in dependence of pile dimensions and soil's relative density. Modified p-y formulations presented in literature to account for the effect of the pile diameter are compared to the FE results.

Keywords

    Foundation stiffness, Monopile, P-Y curve, Sand, Small strain stiffness, Wind energy converter

ASJC Scopus subject areas

Cite this

Evaluation of p-y approaches for large diameter monopiles in sand. / Achmus, Martin; Thieken, Klaus; Lemke, Katrin.
Proceedings of the 24th International Ocean and Polar Engineering Conference, ISOPE Busan. 2014. p. 531-539 (Proceedings of the International Offshore and Polar Engineering Conference).

Research output: Chapter in book/report/conference proceedingConference contributionResearchpeer review

Achmus, M, Thieken, K & Lemke, K 2014, Evaluation of p-y approaches for large diameter monopiles in sand. in Proceedings of the 24th International Ocean and Polar Engineering Conference, ISOPE Busan. Proceedings of the International Offshore and Polar Engineering Conference, pp. 531-539, 24th International Ocean and Polar Engineering Conference, ISOPE 2014 Busan, Busan, Korea, Republic of, 15 Jun 2014. <http://publications.isope.org/proceedings/ISOPE/ISOPE%202014/index.htm>
Achmus, M., Thieken, K., & Lemke, K. (2014). Evaluation of p-y approaches for large diameter monopiles in sand. In Proceedings of the 24th International Ocean and Polar Engineering Conference, ISOPE Busan (pp. 531-539). (Proceedings of the International Offshore and Polar Engineering Conference). http://publications.isope.org/proceedings/ISOPE/ISOPE%202014/index.htm
Achmus M, Thieken K, Lemke K. Evaluation of p-y approaches for large diameter monopiles in sand. In Proceedings of the 24th International Ocean and Polar Engineering Conference, ISOPE Busan. 2014. p. 531-539. (Proceedings of the International Offshore and Polar Engineering Conference).
Achmus, Martin ; Thieken, Klaus ; Lemke, Katrin. / Evaluation of p-y approaches for large diameter monopiles in sand. Proceedings of the 24th International Ocean and Polar Engineering Conference, ISOPE Busan. 2014. pp. 531-539 (Proceedings of the International Offshore and Polar Engineering Conference).
Download
@inproceedings{c18fb9466c89490db20e350cd8eb6689,
title = "Evaluation of p-y approaches for large diameter monopiles in sand",
abstract = "For the design of monopile foundations, the soil resistance is usually modeled by the subgrade reaction method. The commonly used p-y approach described in the offshore guidelines is generally assumed to be sufficiently accurate for pile diameters D ≤ 2 m. However, several investigations indicate that the pile deflections of large diameter monopiles are underestimated for service loads and overestimated for small operational loads. A three dimensional finite element model is presented to evaluate the currently used p-y approach for sand soils in dependence of pile dimensions and soil's relative density. Modified p-y formulations presented in literature to account for the effect of the pile diameter are compared to the FE results.",
keywords = "Foundation stiffness, Monopile, P-Y curve, Sand, Small strain stiffness, Wind energy converter",
author = "Martin Achmus and Klaus Thieken and Katrin Lemke",
year = "2014",
language = "English",
isbn = "9781880653913",
series = "Proceedings of the International Offshore and Polar Engineering Conference",
pages = "531--539",
booktitle = "Proceedings of the 24th International Ocean and Polar Engineering Conference, ISOPE Busan",
note = "24th International Ocean and Polar Engineering Conference, ISOPE 2014 Busan ; Conference date: 15-06-2014 Through 20-06-2014",

}

Download

TY - GEN

T1 - Evaluation of p-y approaches for large diameter monopiles in sand

AU - Achmus, Martin

AU - Thieken, Klaus

AU - Lemke, Katrin

PY - 2014

Y1 - 2014

N2 - For the design of monopile foundations, the soil resistance is usually modeled by the subgrade reaction method. The commonly used p-y approach described in the offshore guidelines is generally assumed to be sufficiently accurate for pile diameters D ≤ 2 m. However, several investigations indicate that the pile deflections of large diameter monopiles are underestimated for service loads and overestimated for small operational loads. A three dimensional finite element model is presented to evaluate the currently used p-y approach for sand soils in dependence of pile dimensions and soil's relative density. Modified p-y formulations presented in literature to account for the effect of the pile diameter are compared to the FE results.

AB - For the design of monopile foundations, the soil resistance is usually modeled by the subgrade reaction method. The commonly used p-y approach described in the offshore guidelines is generally assumed to be sufficiently accurate for pile diameters D ≤ 2 m. However, several investigations indicate that the pile deflections of large diameter monopiles are underestimated for service loads and overestimated for small operational loads. A three dimensional finite element model is presented to evaluate the currently used p-y approach for sand soils in dependence of pile dimensions and soil's relative density. Modified p-y formulations presented in literature to account for the effect of the pile diameter are compared to the FE results.

KW - Foundation stiffness

KW - Monopile

KW - P-Y curve

KW - Sand

KW - Small strain stiffness

KW - Wind energy converter

UR - http://www.scopus.com/inward/record.url?scp=84906920609&partnerID=8YFLogxK

M3 - Conference contribution

AN - SCOPUS:84906920609

SN - 9781880653913

T3 - Proceedings of the International Offshore and Polar Engineering Conference

SP - 531

EP - 539

BT - Proceedings of the 24th International Ocean and Polar Engineering Conference, ISOPE Busan

T2 - 24th International Ocean and Polar Engineering Conference, ISOPE 2014 Busan

Y2 - 15 June 2014 through 20 June 2014

ER -