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http://dx.doi.org/10.7843/kgs.2014.30.7.27

Characteristics and Causes of Wave-Induced Settlement in Caisson Breakwater: Focusing on Settlement Data  

Kim, Tae-Hyung (Dept. of Civil Engrg., Korea Maritime and Ocean Univ.)
Nam, Jung-Man (Songha Construction Co.)
Kim, In-Sok (Road Management Center, Jeju Special Self-Governing Province)
Yun, Seong-Kyu (Dept. of Urban Management, Kyoto Univ.)
Publication Information
Journal of the Korean Geotechnical Society / v.30, no.7, 2014 , pp. 27-40 More about this Journal
Abstract
So far, studies on the settlement of breakwater have mainly been conducted through numerical model tests focusing on an analysis or through the laboratory wave tank tests using a scaled model. There has not been a study on the settlement that is measured in an actual breakwater structure. This study analyzed the data of settlement that has been measured in an actual caisson breakwater for a long time and the characteristics and causes of wave-induced settlement in the caisson (including beneath ground), based on qualitative aspect, were examined. The analysis revealed that wave clearly has an effect on the settlement in caisson, especially in the condition of high wave such as typhoon. Caisson settlement is caused by the liquefaction of ground, which is due to the increase of excess pore pressure, the combination of oscillatory excess pore pressure and residual excess pore water pressure, and the solidification process of ground due to dissipation of the accumulated excess pore pressure. The behavior of excess pore pressure in the ground beneath the caisson is entirely governed by the behavior of the caisson. Ground that has gone through solidification is not likely to go through liquefaction in a similar or a smaller wave condition and consequently, the possibility of settlement is reduced.
Keywords
Oscillatory pore water pressure; Residual pore water pressure; Liquefaction; Progressive solidification; Wave-induced settlement; Caisson Breakwater;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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1 Kim, T.-H., Nam, J.-M., Ge, L., and Lee, K.-I. (2008), "Settlement Characteristic of Beach Sands and Its Evaluation", Marine Georesources & Geotechnology, Vol.26, No.2, pp.67-85.   DOI   ScienceOn
2 Kirca, V. S. Ozgur, Sumer, B. Mutlu, and Fredsoe Jorgen (2013), Residual Liquefaction of Seabed under Standing Waves, Journal of Waterway, Port, Coastal, and Ocean Engineering, Vol.139, No.6, pp.489-501.   DOI
3 Kudella, M., Oumeraci, H., de Groot, M.B., and Meijers, P. (2006), "Large-Scale Experiments on Pore Pressure Generation underneath a Caisson Breakwater", Journal of Waterway, Port, Coastal, and Ocean Engineering, Vol.132, No.4, pp.310-324.   DOI   ScienceOn
4 Lee, K.-H., Baek, D.-J., Kim, D.-S., Kim, T.-H., and Bae, K.-S. (2014), Numerical Simulation on Seabed-Structure Dynamic Responses due to the Interaction between Waves, Seabed and Coastal Structure, Journal of Korean Society of Coastal and Ocean Engineers, Vol.26, No.1, pp.49-64. (In Korean)   과학기술학회마을   DOI   ScienceOn
5 Kudella, M. and Oumeraci, H. (2004a), Wave-induced Pore Pressure in the Sandy Seabed underneath a Caisson Breakwater-Experimental Results of Large-Scale Model Tests, Technical Rep., Technical Univ. of Braunschweig, Leichtweiss-Institute.
6 Li, J. and Jeng, D.S. (2008), "Response of a Porous Seabed Around Breakwater Heads", Ocean Eng., Vol.35, pp.864-886.   DOI   ScienceOn
7 Madsen, O.S. (1978), "Wave-induced Pore Pressure and Effective Stresses in a Porous Bed", Geotechnique, Vol.28, pp.377-393.   DOI   ScienceOn
8 Mase, H., Sakai, T., and Sakamoto, M. (1994), "Wave-induced Porewater Pressures and Effective Stresses around Breakwater", Ocean Eng., Vol.21, No.4, pp.361-379.   DOI   ScienceOn
9 Mei, C.C. and Foda, M.A. (1981), Wave-induced Response in a Fluid-filled Poroelastic Solid with a Free Surface - A Boundary Layer Theory", Geophysical Journal of the Royal Astrological Society, Vol.66, pp.597-631.   DOI
10 Miyamoto, J., Sassa, S., and Sekiguchi, H. (2004), "Progressive Solidification of a Liquefied Sand Layer during Continued Wave Loading", Geotechnique, Vol.54, No.10, pp.617-629.   DOI   ScienceOn
11 Okusa, S. (1985), "Wave-induced Stresses in Unsaturated Submarine Sediments", Geotechnique, Vol.32, No.3, pp.235-247.
12 Biot, M.A. (1941), "General theory of Three-dimensional Consolidation", Journal of Applied Physics, Vol.12, pp.155-165.   DOI
13 Budhu, M. (2010), Soil Mechanics and Foundations - 3rd edition, John Wiley & Sons, Inc.
14 Cho, S.-H. (2007), A Study on the Characteristics of Cheju Island's Beach Sands, Cheju National University, Master Thesis.
15 Zen, K. and Yamazaki, H. (1990b), "Oscillatory Pore Pressure and Liquefaction in Seabed Induced by Ocean Waves", Soils and Foundations, Vol.304, pp.147-161.
16 Hsu, J.R.C. and Jeng, D.S. (1994), "Wave-induced Soil Response in an Unsaturated Anisotropic Seabed of Finite Thickness", Intl. J. for Numerical Analytical Methods in Geomechanics, 18(11), 785-807.   DOI   ScienceOn
17 Kang, G.-C., Yun, S.-K., Kim, T.-H., and Kim, D. (2013), "Numerical Analysis on Settlement Behavior of Seabed Sand-Coastal Structure Subjected to Wave Loads", Journal of Korean Society of Coastal and Ocean Engineers, Vol.25, No.1, pp.20-27. (In Korean)   과학기술학회마을   DOI   ScienceOn
18 Kianoto, T. and Mase, H. (1999), "Boundary-layer Theory for Anisotropic Seabed Response to Sea Waves", Journal of Waterway, Port, Coastal and Ocean Eng., ASCE, Vol.125, No.4, pp.187-194.   DOI
19 Sassa, S. and Sekiguchi, H. (1999), "Analysis of Wave-induced Liquefaction of Beds of Sand in Centrifuge", Geotechnique, Vol.49, No.5, pp.621-638.   DOI
20 Sassa, S. and Sekiguchi, H. (2001), "Analysis of Wave-induced Liquefaction of Sand Beds", Geotechnique, Vol.51, No.12, pp.115-126.   DOI
21 Sassa, S., Sekiguchi, H., and Miyamoto, J. (2001), "Analysis of Progressive Liquefaction as a Moving-boundary Problem", Geotechnique, Vol.51, No.10, 847-857.   DOI   ScienceOn
22 Seed, H.B. and Rahman, M.S. (1978), "Wave-induced Pore Pressure in Relation to Ocean Floor Stability of Cohesionless Soil", Marine Geotechnology, Vol.3, No.2, pp.123-150.   DOI
23 Sumer, B.M. and Fredsoe, J. (2002), The Mechanics of Scour in the Marine Environment, World Scientific, 536pp.
24 Yamamoto, T., Koning, H., Sllmejjer, H., and Van Hijum, E. (1978), "On the Response of a Poroelastic Bed to Water Waves", Journal of Fluid Mechanics, Vol.87, pp.193-206.   DOI
25 Sumer, B.M., Hatipoglu, F., and Fredsoe, J. (2004), "The Cycle of Soil Behaviour during Wave Liquefaction", Book of Abstracts, Paper 171, 29th International Conference on Coastal Engineering, 19-4.September, 2004, National Civil Engineering Laboratory (LNEC), Lisbon, Portugal,
26 Sumer, B.M., Hatipoglu, F., Fredsoe, J., and Sumer, S.K. (2006), "The Sequence of Sediment Behaviour during Wave-induced Liquefaction", Sedimentology, Vol.53, pp.611-629.   DOI   ScienceOn
27 Ulker, M.B.C., Rahman, M.S., and Guddati, M.N. (2010), "Waveinduced Dynamic Response and Instability of Seabed around Caisson Breakwater", Ocean Eng., Vol.37, pp.1522-1545.   DOI   ScienceOn
28 Ye, J., Jeng, D., Liu, P.L.-F., Chan, A.H.C, Ren, W., and Changqi, Z. (2014), "Breaking Wave-induced Response of Composite Breakwater and Liquefaction in Seabed Foundation", Coastal Eng., Vol.85, pp.72-86.   DOI   ScienceOn
29 Yuhi, M. and Ishida, H. (2002), "Simplified Solution of Waveinduced Seabed Response in Anisotropic Seabed", Journal of Waterway, Port, Coastal and Ocean Eng., ASCE, Vol.128, No.1, pp.46-50.   DOI   ScienceOn
30 Kudella, M. and Oumeraci, H. (2004b), "Wave-induced Transient and Residual Pore Pressure in the Sand Bed underneath a Caisson Breakwater-Processes Leading to Liquefaction", Proc., Int. Conf. on Cyclic Behaviour of Soils and Liquefaction Phenomena, Bochum, Germany, Balkema, Rotterdam, pp.411-424.
31 Zen, K. and Yamazaki, H. (1990a), "Mechanism of Wave-induced Liquefaction and Densification in Seabed", Soils and Foundations, Vol.304, pp.90-104.
32 Sekiguchi, H., Kita, K., and Okamoto, O. (1995), "Response of Pore-elastoplastic Beds to Standing Waves", Soils and Foundations, Vol.35, No.3, pp.31-42.   DOI