진행파동장하 해저지반내 잔류간극수압의 해석해
An Analytical Solution of Progressive Wave-Induced Residual Pore-Water Pressure in Seabed
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초록
본 연구에서는 잔류간극수압의 추정에 관한 기존의 해석해에서 지적된 오류를 수정한 새로운 해석해를 제시한다. Fourier급수전개법과 변수분리법으로 산정된 해석해의 타당성은 기존의 해석해, 수치해석해 및 실험결과와 비교·검토로부터 검증된다. 무한 (깊은)두께의 본 해석해는 기존의 해석해보다는 수치적분 등이 수행될 필요가 없는 보다 간단한 식이다. 유한두께에 관한 해석해에 지반두께를 매우 작게 한 경우 극한의 얕은 두께로 점근적인 접근은 가능하지만, 지반두께를 매우 크게 한 경우 극한의 무한두께로 접근은 불가능하며, 유한두께와 무한두께의 사이에는 불연속적인 영역이 존재한다.
Abstract
In this paper, the errors found in the existed analytical solutions described the mechanism of residual pore-water pressure accumulation were examined and a new analytical was proposed. The new analytical solution was derived by using a Fourier series expansion and separation of variables was verified by comparison with the existed both analytical and numerical solutions and experimental result. The new analytical solution is very simple that there is no need for numerical integration for deep soil thickness. In addition, the solutions of the residual porewater pressure for finite, deep, and shallow soil thickness reveled that it is possible to approach from finite to shallow soil thickness, but not possible to deep soil thickness because there was discontinues zone between finite and deep soil thickness.
참고문헌 (28)
- Biot, M. A., "General theory of three-dimensional consolidation", J. Applied Physics, 12, pp.155~164 (1941)
- Castro, G., "Liquefaction and cyclic mobility of saturated sands", J. Geotechnical Engineering Division, 101(GT6), pp.551~569 (1975)
- Cheng, L., "Solution of pore pressure build up due to progressive waves", Int. J. Numerical and Analytical Methods in Geomechanics, 25, pp.885~907 (2001)
- Laboratory and field investigation of wave-sediment interaction, "Clukey, E. C.", Joseph H. Defrees Hydraulic Laboratory, School of Civil and Environmental Engineering, Cornell University, ~ (1983)
- Clukey, E. C., "The impact of wave loads and pore-water pressure generation on initiation of sediment transport", Geo-Marine Letters, 5, pp.177~183 (1985)
- de Alba, P., "Sand liquefaction in large-scale simple shear tests", J. Geotechnical Engineering Division, 102, pp.909~928 (1976)
- Hamada, M., "Liquefaction-induced large ground displacement", 13th ICSMFE, Performance of Ground Soil during Earthquake, pp.93~108 (1994)
- Ishihara, K., "Liquefaction and flow failure during earthquakes", Geotechnique, 43(3), pp.351~415 (1993)
- Ishihara, K., "Liquefaction induced ground damage in Dagupan in the July 16, 1990 Luzon earthquake, Soils and Foundations", JSSMFE, 33(1), pp.133~154 (1993)
- Jeng, D. S., "Wave-induced seabed response in front of a breakwater", PhD, pp.1997
- Jeng, D. S., "Effects of wave non-linearity on residual pore pressure in marine sediments", The Open Civil Eng. J., 2, pp.63~74 (2008)
- Jeng, D. S., "Simplified analytical approximation for pore-water pressure buildup in marine sediments", J. Waterway, Port, Coastal, and Ocean Eng., ASCE, 133(4), pp.309~312 (2007)
- A new approximation for pore pressure accumulation in marine sediment due to water waves, "Jeng, D. S.", School of Civil Engineering, University of Sydney, ~, pp.No. R868 (2006)
- Kirca, V. S. O., "Residual liquefaction of seabed under standing waves", J. Waterway, Port, Coastal, and Ocean Eng., ASCE, 139, pp.489~501 (2013)
- 이광호, "임의반사율의 부분중복파동장에서 유한두께를 갖는 해저지반 내지반응답의 해석법", 한국해안·해양공학회논문집, 26(5), pp.300~313 (2014), 한국해안,해양공학회[DOI]
- McDougal, W. G., "Wave-induced pore water pressure accumulation in marine soils", J. Offshore Mechanics and Arctic Eng., 111, pp.1~11 (1989)
- Sassa, S., "Wave-induced liquefaction of beds of sand in a centrifuge", Geotechnique, 49(5), pp.621~638 (1999)
- Sassa, S., "Analysis of wave-induced liquefaction of sand beds", Geotechnique, 51(2), pp.115~126 (2001)
- Sassa, S., "Analysis of progressive liquefaction as a moving boundary problem", Geotechnique, 51(10), pp.847~857 (2001)
- Sawicki, A., "Wave-induced stresses and liquefaction in seabed according to the Biot-type approach, Archives of Hydro-Eng", And Environmental Mechanics, 52(2), pp.131~145 (2005)
- Seed, H. B., "Simplified procedure for evaluating soil liquefaction potential", J. Soil Mechanics and Foundations Division, ASCE, 97(SM9), pp.1249~1273 (1971)
- Seed, H.B., "Ground motion and soil liquefaction during earthquakes" (1982), Earthquake Engineering Research Institute
- Seed, H. B., "Liquefaction of saturated sands during cyclic loading", J. Soil Mechanics and Foundations Division, ASCE, 92, pp.105~134 (1966)
- Seed, H. B., "Effects of multidirectional shaking on pore pressure development in sands", J. Geotechnical Division, ASCE, 104, pp.27~44 (1978)
- Seed, H. B., "Wave-induced pore pressure in relation to ocean floor stability of cohesionless soils", Marine Geotechnology, 3(2), pp.123~150 (1978)
- Sumer, B. M., "A random-walk model for pore pressure accumulation in marine soils", 9th Intl. Offshore and Polar Eng. Conference, ISOPE, pp.521~528 (1999)
- Yamamoto, T., "On the response of a poro-elastic bed to water waves", J. Fluid Mech, 87, pp.193~206 (1978)
- Zen, K., "Field observation and analysis of wave-induced liquefaction in seabed", Soil and Foundation, 31(4), pp.161~179 (1991)