Details
| Original language | English |
|---|---|
| Pages (from-to) | 937-942 |
| Number of pages | 6 |
| Journal | Journal of Marine Science and Technology |
| Volume | 23 |
| Issue number | 6 |
| Publication status | Published - 1 Dec 2015 |
Abstract
Large-scale hydraulic model tests were carried out by the Leibniz University of Hannover, Germany to investigate the performance of wide-graded grain materials (0.1-200 mm) as scour protection system tested under spectral wave loads. The model tests were conducted in the Large Wave Flume (GWK) of the Forschungszentrum Küste (FZK) assuming a length scale of 1:4. The experimental setup consisted of a single layer material bed protecting a monopile (D = 1 m) as often used as offshore supporting structure. In order to measure the structure-induced scour development around the monopile acoustic backscatter systems (ABS), single-beam echosounder, and a 3D laser scanner were used. Matching environmental conditions of the North Sea, the model tests were carried out with spectral wave load (JONSWAP-spectra) and successively increasing significant wave heights up to Hs = 1.3 m. As result, a maximum scour depth of S/D = 0.161 was found after 9000 waves which resembled a synthetic storm duration of 20 h. The results indicate high stability against spectral wave load and demonstrate the capability of wide-graded material to perform reasonably well under wave loads, particularly applied in a dynamic design of scour protection.
ASJC Scopus subject areas
- Earth and Planetary Sciences(all)
- Oceanography
- Engineering(all)
- Ocean Engineering
- Engineering(all)
- Mechanics of Materials
- Engineering(all)
- Mechanical Engineering
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In: Journal of Marine Science and Technology, Vol. 23, No. 6, 01.12.2015, p. 937-942.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Experimental study on the erosion stability of coarse grain materials under waves
AU - Schendel, Alexander
AU - Goseberg, Nils
AU - Schlurmann, Torsten
N1 - Cited By :1 Export Date: 1 February 2021
PY - 2015/12/1
Y1 - 2015/12/1
N2 - Large-scale hydraulic model tests were carried out by the Leibniz University of Hannover, Germany to investigate the performance of wide-graded grain materials (0.1-200 mm) as scour protection system tested under spectral wave loads. The model tests were conducted in the Large Wave Flume (GWK) of the Forschungszentrum Küste (FZK) assuming a length scale of 1:4. The experimental setup consisted of a single layer material bed protecting a monopile (D = 1 m) as often used as offshore supporting structure. In order to measure the structure-induced scour development around the monopile acoustic backscatter systems (ABS), single-beam echosounder, and a 3D laser scanner were used. Matching environmental conditions of the North Sea, the model tests were carried out with spectral wave load (JONSWAP-spectra) and successively increasing significant wave heights up to Hs = 1.3 m. As result, a maximum scour depth of S/D = 0.161 was found after 9000 waves which resembled a synthetic storm duration of 20 h. The results indicate high stability against spectral wave load and demonstrate the capability of wide-graded material to perform reasonably well under wave loads, particularly applied in a dynamic design of scour protection.
AB - Large-scale hydraulic model tests were carried out by the Leibniz University of Hannover, Germany to investigate the performance of wide-graded grain materials (0.1-200 mm) as scour protection system tested under spectral wave loads. The model tests were conducted in the Large Wave Flume (GWK) of the Forschungszentrum Küste (FZK) assuming a length scale of 1:4. The experimental setup consisted of a single layer material bed protecting a monopile (D = 1 m) as often used as offshore supporting structure. In order to measure the structure-induced scour development around the monopile acoustic backscatter systems (ABS), single-beam echosounder, and a 3D laser scanner were used. Matching environmental conditions of the North Sea, the model tests were carried out with spectral wave load (JONSWAP-spectra) and successively increasing significant wave heights up to Hs = 1.3 m. As result, a maximum scour depth of S/D = 0.161 was found after 9000 waves which resembled a synthetic storm duration of 20 h. The results indicate high stability against spectral wave load and demonstrate the capability of wide-graded material to perform reasonably well under wave loads, particularly applied in a dynamic design of scour protection.
KW - Erosion stability
KW - Hydraulic model test
KW - Scour protection
KW - Wide-graded grain material
KW - Acoustics
KW - Erosion
KW - Hydraulic models
KW - Scanning
KW - Scour
KW - Structural loads
KW - Water waves
KW - 3D laser scanners
KW - Acoustic backscatter
KW - Environmental conditions
KW - Erosion stabilities
KW - Significant wave height
KW - Supporting structure
KW - Structural design
UR - http://www.scopus.com/inward/record.url?scp=84961370479&partnerID=8YFLogxK
U2 - 10.6119/JMST-015-0610-12
DO - 10.6119/JMST-015-0610-12
M3 - Article
AN - SCOPUS:84961370479
VL - 23
SP - 937
EP - 942
JO - Journal of Marine Science and Technology
JF - Journal of Marine Science and Technology
SN - 0948-4280
IS - 6
ER -