Details
| Original language | English |
|---|---|
| Title of host publication | Proceedings of the 20th (2010) International Offshore and Polar Engineering Conference, ISOPE-2010 |
| Pages | 619-623 |
| Number of pages | 5 |
| Publication status | Published - 2010 |
| Event | 20th International Offshore and Polar Engineering Conference, ISOPE-2010 - Beijing, China Duration: 20 Jun 2010 → 25 Jun 2010 |
Publication series
| Name | Proceedings of the International Offshore and Polar Engineering Conference |
|---|---|
| Volume | 2 |
| ISSN (Print) | 1098-6189 |
| ISSN (electronic) | 1555-1792 |
Abstract
In offshore technology driven steel pipes are often used as foundation elements for offshore wind energy converters like monopile, tripod and jacket systems. For a pile foundation, the scour caused by wave and current may decrease the lateral resistance. However, the effect of scour on the lateral resistance of piles has not yet been investigated intensively. This paper presents a study on the effect of scour on the deformation response of these foundation elements embedded in sandy soil. A three dimensional finite element model is used to investigate the lateral deformation of a pile with a scour under monotonic and cyclic loading. To account for cyclic loading, a special approach termed the degradation stiffness model is applied, which makes use of the results of cyclic triaxial tests. With this method, the increase of lateral displacement and rotation of the pile head due to scour can be quantified. The effects of scour depth on the lateral deformation and in particular on the rotation of piles with different lengths and diameters are investigated and evaluated.
Keywords
- Cyclic loading, Finite element, Pile, Sand, Scour
ASJC Scopus subject areas
- Energy(all)
- Energy Engineering and Power Technology
- Engineering(all)
- Ocean Engineering
- Engineering(all)
- Mechanical Engineering
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Proceedings of the 20th (2010) International Offshore and Polar Engineering Conference, ISOPE-2010. 2010. p. 619-623 (Proceedings of the International Offshore and Polar Engineering Conference; Vol. 2).
Research output: Chapter in book/report/conference proceeding › Conference contribution › Research › peer review
}
TY - GEN
T1 - Numerical investigation of scour effect on lateral resistance of windfarm monopiles
AU - Achmus, M.
AU - Kuo, Y. S.
AU - Abdel-Rahman, K.
PY - 2010
Y1 - 2010
N2 - In offshore technology driven steel pipes are often used as foundation elements for offshore wind energy converters like monopile, tripod and jacket systems. For a pile foundation, the scour caused by wave and current may decrease the lateral resistance. However, the effect of scour on the lateral resistance of piles has not yet been investigated intensively. This paper presents a study on the effect of scour on the deformation response of these foundation elements embedded in sandy soil. A three dimensional finite element model is used to investigate the lateral deformation of a pile with a scour under monotonic and cyclic loading. To account for cyclic loading, a special approach termed the degradation stiffness model is applied, which makes use of the results of cyclic triaxial tests. With this method, the increase of lateral displacement and rotation of the pile head due to scour can be quantified. The effects of scour depth on the lateral deformation and in particular on the rotation of piles with different lengths and diameters are investigated and evaluated.
AB - In offshore technology driven steel pipes are often used as foundation elements for offshore wind energy converters like monopile, tripod and jacket systems. For a pile foundation, the scour caused by wave and current may decrease the lateral resistance. However, the effect of scour on the lateral resistance of piles has not yet been investigated intensively. This paper presents a study on the effect of scour on the deformation response of these foundation elements embedded in sandy soil. A three dimensional finite element model is used to investigate the lateral deformation of a pile with a scour under monotonic and cyclic loading. To account for cyclic loading, a special approach termed the degradation stiffness model is applied, which makes use of the results of cyclic triaxial tests. With this method, the increase of lateral displacement and rotation of the pile head due to scour can be quantified. The effects of scour depth on the lateral deformation and in particular on the rotation of piles with different lengths and diameters are investigated and evaluated.
KW - Cyclic loading
KW - Finite element
KW - Pile
KW - Sand
KW - Scour
UR - http://www.scopus.com/inward/record.url?scp=77956328581&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:77956328581
SN - 9781880653777
T3 - Proceedings of the International Offshore and Polar Engineering Conference
SP - 619
EP - 623
BT - Proceedings of the 20th (2010) International Offshore and Polar Engineering Conference, ISOPE-2010
T2 - 20th International Offshore and Polar Engineering Conference, ISOPE-2010
Y2 - 20 June 2010 through 25 June 2010
ER -