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Literature Synthesis: Batch 07 (Files 1201-1240)

Generated: 2026-04-17 | Source: literature_review/ positions 1201-1240 | Files scanned: 40

Individual Summaries

# Author(s) Year Title Core Finding Method Tags
1 Tamra OWF Report ~2013 Domestic/international wind turbine development status and price comparison 1.5-2.5 MW turbines dominate (83% market share); turbine prices 0.78-1.14 GBP-m/MW varying by region and rotor diameter Market survey, price index analysis wind-turbine, cost, market-survey
2 Tamra OWF Report ~2014 Comparison of OWT substructure types and characteristics Monopiles declining for >3 MW due to resonance-driven cross-section escalation; tripods and jackets preferred at >30 m depth; gravity bases suit variable seabed but heavy Engineering review substructure, monopile, jacket, tripod, gravity-base
3 MiriAn/KISTI 2014 US offshore wind power technology status Minimal content recovered (webpage stub only) Report summary offshore-wind, US-policy
4 KOCED Committee 2019 SPS-F KOCED 0005-7383: Sand pluviation test method for sandy soil preparation Standardized air pluviation procedure for centrifuge/1-g model testing in sandy soils; developed by KAIST geocentrifuge center Standard specification centrifuge, sand-pluviation, test-standard
5 EAU Committee / Grabe (ed.) 2012 Recommendations of the Committee for Waterfront Structures, Harbours and Waterways (EAU 2012) Comprehensive design recommendations for waterfront structures including quay walls, sheet piles, and port infrastructure Design standard (9th edition) waterfront, port-design, standard, geotechnics
6 Randolph & Gourvenec 2011 Offshore Geotechnical Engineering Textbook covering piled foundations, shallow foundations, anchoring, pipelines, mobile rigs, and geohazards; offshore practice diverged from onshore over 30 years Textbook (CRC/Spon) offshore-geotech, textbook, piles, anchors, shallow-foundations
7 Houlsby & Byrne 2000 Suction caisson foundations for OWT and anemometer masts Foundation cost is 15-40% of OWT total; suction caissons viable alternative; OWT loads differ from O&G (smaller V, larger H/M ratio, shallower water, multiple units) Conceptual/analytical suction-caisson, OWT-foundation, load-regime
8 Raiffa & Schlaifer 1961 Applied Statistical Decision Theory Bayesian decision framework using utility and subjective probability for sampling problems under uncertainty Analytical (Bayesian decision theory) decision-theory, Bayesian, statistics
9 EPRI TR-105206 / Cornell 1995 Summary of Transmission Line Structure Foundation Research 30 reports resolving foundation engineering uncertainties for transmission towers; covers analytical modeling, load testing, reliability-based design for drilled shafts under uplift/lateral/combined loading Experimental + analytical (1979-1995) transmission-line, foundation, drilled-shaft, uplift
10 KEPCO/SNU Project Team 2024 Year-1 annual evaluation Q&A: scour stability of OWT foundations via natural frequency Corrosion, load superposition, and FFT filtering of blade/wind/wave/current signals are key challenges for vibration-based scour monitoring; CFD/DEM planned for Year 2 Project review Q&A scour-monitoring, natural-frequency, OWT, SHM
11 Choo, Kim, Hossain et al. 2014 Centrifuge test of a clustered bucket foundation for offshore wind towers Clustered (3-bucket) foundation improved lateral-moment resistance by up to 58% over equivalent-area monopod; efficiency decreased with increasing rotation Centrifuge modeling (KAIST) clustered-bucket, centrifuge, lateral-capacity, OWT
12 (Design drawings) -- Tower layout design/fabrication drawings Technical drawings only (no analytical content) Drawing tower-design, fabrication
13 El-Sekelly, Tessari & Abdoun 2014 Shear wave velocity measurement in the centrifuge using bender elements Validated bender element technique for in-flight Vs measurement in centrifuge; applicable to liquefaction and nonlinear soil property identification Centrifuge + bender elements bender-element, centrifuge, shear-wave, Vs
14 ABS 2023 Guidance Notes on Global Performance Analysis for Offshore Wind Turbines Integrated load analysis (ILA) methodologies for bottom-founded and floating OWT per IEC 61400; modeling strategies for aeroelastic-hydrodynamic-geotechnical coupling Design guidance (classification) ILA, ABS, floating-OWT, classification, standard
15 Korea MOF 2024 Safety inspection basis for floating offshore wind structures Floating OWT structures now included under Ship Safety Act; stability inspection, underwater surveys, and industrial personnel transport standards mandated Regulatory amendment FOWT, regulation, Korea, safety-inspection
16 Kim K-S, Yu H-S, Kim S-R 2025 Dynamic behavior change of OWT tripod bucket foundation due to scour (model test) Scour amplifies displacement and strain amplitudes in 1-g model tests (0-66 mm scour in silica sand); vulnerability to dynamic loads increases with scour depth 1-g model test, piezo actuator (10-200 Hz) scour, dynamic-response, tripod-bucket, 1-g-test, OWT
17 Thusyanthan, Mesmar, Wang & Haigh 2010 Uplift resistance of buried pipelines and DNV-RP-F110 guidelines Mobilisation distance to peak uplift exceeds DNV-RP-F110 values; proposed new equation as f(H/D); full-scale tests at Cambridge Schofield Centre Full-scale + centrifuge testing pipeline, uplift, upheaval-buckling, DNV
18 (Korean welding paper) -- Numerical modeling of solidification segregation in binary alloy welds Unrelated to offshore/geotechnical scope (welding metallurgy) Numerical (FEM) welding, metallurgy -- excluded
19 Jeong, Lee & Kim J-H 2021 Centrifuge modeling for evaluation of cyclic behavior of OWT with tripod foundation Cyclic loading on tripod bucket foundation evaluated in centrifuge; cyclic degradation characterized for design of OWT tripod systems Centrifuge modeling cyclic-loading, tripod, centrifuge, OWT
20 Choo, Kim D-J, Hossain et al. 2021 Behavior of monopod bucket foundation under combined M-H loads in silty sand H-M failure envelope proposed from 70g centrifuge tests in Yellow Sea silty sand; 20x faster loading rate increased capacity 1.5x via dilation-induced pore pressure; suction inside skirt dominates capacity Centrifuge (70g), KAIST monopod-bucket, silty-sand, combined-loading, centrifuge, Yellow-Sea
21 API RP 2EQ / ISO 19901-2 2014 Seismic design procedures and criteria for offshore structures Spectral response acceleration maps for offshore regions worldwide (Central America, South America, East Asia) Design standard seismic, API, offshore, standard
22 (Scour depth calculation) -- Scour depth calculation Minimal content (2-page stub) Calculation sheet scour -- excluded
23 TRB Record 1290 1991 3rd Bridge Engineering Conference (scour focus) Conference proceedings on bridge scour, dynamics, field testing, and culvert hydraulics Conference proceedings bridge-scour, conference, hydraulics
24 (Korean FEM paper) -- 3D seepage analysis and consolidation of improved ground Minimal content recovered Numerical (FEM) seepage, consolidation -- excluded
25 Wang, Yang & Zeng 2017 Centrifuge modeling of lateral bearing behavior of OWT suction bucket in sand Lateral capacity reached at 3% normalized displacement; aspect ratio is key parameter; cyclic displacement stabilizes after ~5 cycles Centrifuge (50g), force-controlled lateral-capacity, suction-bucket, centrifuge, sand, aspect-ratio
26 Wang, Li & Li 2022 Centrifuge and numerical analysis on lateral performance of mono-bucket foundation for OWT Modified "m-method" for ultimate lateral capacity; rotation center position calculated analytically outperforms geometric method; validated against field, centrifuge, and lab data Centrifuge + FEM + analytical mono-bucket, lateral-capacity, m-method, centrifuge, FEM
27 Houlsby, Ibsen & Byrne 2005 Suction caissons for wind turbines Comprehensive review of Oxford-Aalborg research; monopod vs tripod/tetrapod loading regimes differ fundamentally (moment vs push-pull); wave loads dominate horizontal force but wind dominates overturning moment Lab tests, field trials, numerical suction-caisson, monopod, tripod, design-method, Oxford-Aalborg
28 Korea MOCT 2006 Construction slope design standards Korean national standard for slope design, construction, and maintenance (unrelated to offshore) Design standard slope, Korea, standard -- excluded
29 Bureau Veritas NR 534 2016 Rules for Classification of Self-Elevating Units (Jack-ups and Liftboats) Classification rules for jack-up structural assessment, stability, and site-specific evaluation Classification rules jack-up, classification, BV, standard
30 Poulos & Davis 1974 Elastic Solutions for Soil and Rock Mechanics Minimal content recovered (empty/stub) Reference textbook elastic-solutions, textbook -- excluded
31 Sun, Lee, Lee & Moon 2014 Study on substructure design and analysis for 5 MW OWT CFD-based wave/wind load analysis for 5 MW substructure; high safety factors needed for single-structure treatment; fatigue assessment per common design rules CFD + structural analysis 5MW-OWT, substructure-design, CFD, fatigue
32 Kim D-J, Choo, Kim J-H, Kim S & Kim D-S 2014 Monotonic and cyclic behavior of tripod suction bucket foundations (centrifuge) Tripod moment-rotation is bilinear vs gradual for monopod; yield moment is half monopod but rotation angle only 20%; cyclic loads below monotonic yield produce negligible plastic deformation Centrifuge (KAIST), silty sand tripod-bucket, cyclic, monotonic, centrifuge, silty-sand
33 EPRI 2005 AC Transmission Line Reference Book, 200 kV and Above (3rd ed.) Minimal content (stub only) Reference book transmission-line -- excluded
34 EN 50341-1 -- Overhead transmission lines - General requirements Minimal content (stub only) European standard OHTL, standard -- excluded
35 Zhu, Kong, Chen et al. 2011 Installation and lateral loading tests of suction caissons in silt Suction installation feasible in silt but seepage effect limited; rotation center at ~4/5 skirt length; analytical expression for ultimate moment capacity validated Large-scale model test (Zhejiang) suction-caisson, silt, installation, lateral-loading, rotation-center
36 SNAME T&R 5-5A 2008 Recommended Practice for Site Specific Assessment of Mobile Jack-Up Units Industry standard for jack-up foundation assessment including spudcan-soil interaction, preloading, and environmental loading Recommended practice jack-up, spudcan, site-assessment, SNAME
37 Dai, Gao, Chen et al. 2021 Calculation model of equilibrium scour depth for monopile under waves and currents Energy balance model for combined wave-current scour prediction; composite flow velocity captures interaction; good agreement with published experimental data Analytical (energy balance) scour-depth, monopile, wave-current, analytical-model
38 Wang, Takayanagi, Chen et al. ~2023 Comparison of French and Japanese scour risk assessment for railway infrastructure SNCF uses ML model, RTRI uses scoring table; both screen high-risk bridges effectively but require different parameters due to inspection modes and hydrologic conditions Comparative case study (ML vs scoring) scour-risk, railway, ML, bridge, France-Japan
39 Dutta & Roy 2002 Critical review on idealization and modeling for soil-foundation-structure interaction SSI alters structural response significantly; Winkler, continuum, elasto-plastic, viscoelastic, and FE models reviewed; model choice must balance rigor with parameter uncertainty Literature review SSI, Winkler, continuum, modeling-review
40 Giordano, Prendergast & Limongelli 2020 Framework for assessing the value of information for health monitoring of scoured bridges VoI framework quantifies benefit of SHM vs no-monitoring for scour; sensor-based dynamic monitoring can infer scour without visual inspection; decision support for traffic restrictions Bayesian VoI + SHM scour, SHM, VoI, bridge, decision-making

Synthesis

CONSENSUS

  1. Suction bucket foundations are a viable and cost-effective alternative to monopiles and gravity bases for OWT, particularly at water depths of 10-30 m. This is supported consistently by Houlsby & Byrne (2000), Houlsby et al. (2005), Choo/Kim/Hossain et al. (2014), Kim D-J et al. (2014), Wang et al. (2017, 2022), and Zhu et al. (2011). Foundation costs represent 15-40% of total OWT project cost.

  2. OWT loading differs fundamentally from O&G platforms: small vertical load, disproportionately large horizontal load and overturning moment, shallow water, and multiple installations. Every suction caisson paper in this batch reiterates this distinction.

  3. Scour degrades OWT foundation performance by reducing stiffness, increasing displacement amplitudes, and shifting dynamic properties. This is established across centrifuge tests (Li et al. 2020 via Kim K-S 2025), 1-g model tests (Kim K-S et al. 2025), and analytical scour models (Dai et al. 2021).

  4. Centrifuge modeling is the dominant experimental method for offshore foundation research, used in 8 of the 40 papers. It is recognized as essential for replicating stress-dependent soil behavior at reduced scale.

  5. Silty sand (Yellow Sea / South China Sea soils) is a critical but understudied soil type for OWT bucket foundations. Kim D-J (2014), Choo et al. (2021), and Zhu et al. (2011) all emphasize the need for site-specific data in this soil.

DEBATES

  1. Monopod vs. tripod/clustered bucket configuration: Kim D-J et al. (2014) show tripod yield moment is half of monopod but at 1/5 the rotation angle (bilinear vs gradual response). Choo et al. (2014) show clustered buckets improve resistance by 58% but with decreasing efficiency at large rotations. The optimal configuration remains design-case-dependent.

  2. Loading rate effects: Choo et al. (2021) found 20x faster loading increased capacity 1.5x due to dilation-induced pore pressure -- raising questions about whether quasi-static test results are conservative for storm loading.

  3. Scour depth prediction methods: Dai et al. (2021) propose energy balance, Sumer/Fredsoe use KC-number correlations, and Zanke et al. use dimensional analysis. No single formula is universally adopted for combined wave-current conditions at monopiles.

  4. Scour monitoring approach: The project Q&A (2024) highlights the unresolved challenge of filtering corrosion, blade vibration, and environmental loads from natural frequency signals. Giordano et al. (2020) propose VoI frameworks but rely on idealized damage detection assumptions.

GAPS

  1. Long-term cyclic + scour coupling: No paper in this batch combines progressive scour evolution with long-term cyclic degradation in a single experiment or model. Kim D-J (2014) studies cyclic loads without scour; Kim K-S (2025) studies scour without realistic cyclic history.

  2. Field validation of centrifuge-derived design methods: Wang et al. (2022) validate their modified m-method against field data, but most centrifuge studies (Choo 2014, Kim D-J 2014, Jeong 2021) lack field-scale confirmation.

  3. Vibration-based scour quantification for multi-legged foundations: Giordano et al. (2020) and the project Q&A (2024) address bridge piers and single columns. No framework exists for extracting scour depth from dynamic measurements on tripod or tetrapod bucket foundations.

  4. Probabilistic/Bayesian scour assessment for OWT: Wang et al. (2023) compare deterministic scoring tables (Japan) with ML models (France) for railway bridges. No equivalent probabilistic or ML-based scour risk framework exists for offshore wind.

  5. Silty sand constitutive behavior under combined loading: Despite multiple papers testing in silty sand, a validated constitutive model specific to Yellow Sea silty sand for use in numerical OWT foundation analysis is absent.

METHODS

Method Count Representative Papers
Centrifuge modeling 8 Choo 2014, Kim D-J 2014, Wang 2017, Wang 2022, Jeong 2021, Choo/Kim 2021, El-Sekelly 2014
1-g model testing 1 Kim K-S 2025
Large-scale model test 1 Zhu et al. 2011
FEM / numerical 3 Wang 2022, Sun 2014, Dutta & Roy 2002
Analytical / theoretical 4 Houlsby 2000/2005, Dai 2021, Thusyanthan 2010
Bayesian / VoI / ML 3 Raiffa 1961, Giordano 2020, Wang 2023
Standards / classification 7 EAU 2012, ABS 2023, API RP 2EQ, BV NR534, SNAME 5-5A, KOCED SPS-F, Korea MOF 2024

BENCHMARKS

  • Lateral capacity criterion: 3% normalized displacement (u/D) defines ultimate lateral capacity for suction buckets in sand (Wang et al. 2017).
  • Clustered bucket improvement: Up to 58% increase in resistance over equivalent-area monopod (Choo et al. 2014).
  • Loading rate sensitivity: 20x rate increase yields 1.5x capacity gain in silty sand (Choo et al. 2021).
  • Tripod yield rotation: ~20% of monopod yield rotation angle at half the yield moment (Kim D-J et al. 2014).
  • Scour on stiffness: 20-40% lateral stiffness reduction from local/global scour on monopiles (Li et al. 2020, cited in Kim K-S 2025).
  • Rotation center in silt: Located at ~4/5 of skirt length below lid center (Zhu et al. 2011).
  • Pipeline mobilisation: Exceeds DNV-RP-F110 values of 0.5-0.8% H; depends on H/D ratio (Thusyanthan et al. 2010).

40 files processed. 6 excluded (stubs, unrelated topics, empty content). 34 substantive entries synthesized.