Journal of Korean Society of Coastal and Ocean Engineers (한국해안·해양공학회논문집)

Korean Society of Coastal and Ocean Engineers (한국해안·해양공학회)
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An Experimental Study on Depositional Properties of Cohesive Sediments in Masan Port

마산항 점착성 퇴적물의 퇴적특성에 대한 실험적 연구

  • 양수현 (전북대학교 토목공학과, 방재연구센터) ;
  • 김남훈 (대우건설 토목사업본부) ;
  • 황규남 (전북대학교 토목공학과, 방재연구센터)
  • Received : 2015.10.26
  • Accepted : 2015.12.09
  • Published : 2015.12.31
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Abstract

In this study, a series of deposition tests have been performed using an annular flume in order to estimate depositional parameter of natural sediments. The sediment of Masan Port has been collected for deposition tests, and total 18 deposition tests have been carried out on different bed shear stress respectively but with the same initial concentration. As the results, the minimum bed shear stress ${\tau}_{bmin}$, standard deviation ${\sigma}1$ and time scale parameter $({\tau}_b^*-1)_{50}$ are found to be $0.10N/m^2$, 0.54 and 0.87 respectively. Through comparing with results from previous studies for other sediments, the results of this study are shown to be good enough to verify.

본 연구에서는 자연시료에 대한 퇴적 매개변수를 정량적으로 산정하기 위하여, 환형수조를 이용한 퇴적실험이 수행되었다. 퇴적실험을 위해 마산항이 대표 해역으로 선정되어 시료가 채취되었으며, 퇴적실험은 초기농도가 동일한 조건에서 바닥전단응력의 크기만을 변화시키면서 총 18회의 실험이 수행되었다. 퇴적실험 결과, 마산항 갯벌 점착성 퇴적물의 최소전단응력 ${\tau}_{bmin}$과 퇴적률 매개변수 ${\sigma}1$ 및 $({\tau}_b^*-1)_{50}$은 각각 $0.10N/m^2$, 0.54, 0.87로 산정되었으며, 과거 타 연구결과와의 비교 검토를 통하여 본 실험에서 도출된 결과의 타당성이 입증되었다.

Keywords

References

  1. American Society for Testing and Materials (1987). Annual Book of A.S.T.M. Standards, 04.08, American Society for Testing and Materials, Philadelphia, U,S,A.
  2. Berlamont, J., Ockendon, M., Toorman, E. and Winterwerp, J. (1993). "The characterisation of cohesive sediment properties", Coastal Engineering, Vol. 21, 105-128. https://doi.org/10.1016/0378-3839(93)90047-C
  3. Hwang, K.-N., Cho, Y.S. and Lee. T.H. (2002). Settling Characteristics of Saemankeum Fine-Cohesive Sediments : Effects of Physico-Chemical Properties. J. of Korea Water Resources Association, 35(5), 475-484 (in Korean). https://doi.org/10.3741/JKWRA.2002.35.5.475
  4. Hwang, K.-N., Kim, N.H. and Lee, Y.H. (2008). The Laboratory Study on Estimation of Depositional Properties of Kaolinite Sediments in Saltwater Condition. J. of Korea Water Resources Association, 41(9), 863-872 (in Korean). https://doi.org/10.3741/JKWRA.2008.41.9.863
  5. Hwang, K.-N., So, S.-D. and Kim, T.-M. (2005). An Experimental Study for Estimation of Erosion Rate of Fine Cohesive Sediments. Journal of Korean society of coastal and ocean engineers, 17(2), 119-128 (in Korean).
  6. Hwang, K.-N. and Yang, S.-H. (2007). A Laboratory Study on Depositional Properties of Kaolinite Sediments. J. of Korean Society of Civil Engineers, 27(6B), 679-687 (in Korean)
  7. Jung, E.-T., Kim, Y.M., Kim, D.H. and Hwang, K.-N. (2012). An Experimental Study on Depositional Parameters of Cohesive Sediments in Semi-closed Bay. Journal of Korean society of coastal and ocean engineers, 24(3), 159-165 (in Korean). https://doi.org/10.9765/KSCOE.2012.24.3.159
  8. Kim, J.-J. (1989). An Experimental Study of Erosion and Deposition of Cohesive Sediment. Ph.D. Dissertation, Seoul National University (in Korean).
  9. Krone, R.B. (1962). Flume studies of the transport of sediment in estuarial shoaling process, Final Report, Hydraulic Engineering Laboratory and Sanitary Engineering Research Laboratory, University of California, Berkeley, California.
  10. Lee, D.J. (2011). A Study on Development Strategy of the Masan Port by Port Environmental Change. Master's Thesis, Myongji Univ., The Graduate School of Real Estate and Distribution Management (in Korean).
  11. Lick, W., Mcneil, J. (2001). "Effects of sediment bulk properties on erosion rates.", J. of science of the total environment, Vol. 266, 41-48. https://doi.org/10.1016/S0048-9697(00)00747-6
  12. Mehta, A.J. (1986). Characterization of cohesive sediment properties and transport processes in estuaries., Estuarine Cohesive Sediment Dynamics, A.J. Mehta ed., Springer-Verlag, Berlin. 290-325.
  13. Mehta, A.J. (2013). An introduction to hydraulics of fine sediment transport., World scientific.
  14. Mehta, A.J. and Partheniades, E. (1975). An investigation of the depositional properties of flocculated fine sediments. J. Hydraul. Res., 13(4), pp. 361-381. https://doi.org/10.1080/00221687509499694
  15. Mitchell, J.K. (1993). Fundamentals of Soil Behavior. 2nd ed. New York : John Wiley & Sons, Inc.
  16. Moon, H.-S. (1996). Clay Mineralogy, Minum Books, 509-526 (in Korean).
  17. National Fisheries Research & Development Institute (1997). Method of process test of marine environment. The Korean Society of Oceanography (in Korean).
  18. Rosillon, R. and Volkenborn, C. (1964). Sedimentation de Material Cohesivoen Agua Salada. Thesis, Univ. of Zulia, Maracaibo, Venezuela.
  19. Park, S.-Y. (2004). The Study on Settling and Depositional Properties of Fine Cohesive Sediment with regard to Turbulent Shearing. Master's Thesis, Chonbuk National University (in Korean).
  20. Partheniades, E. (1965). Erosion and deposition of cohesive soils. Journal of the Hydraulics Division. 91(1), 105-138.
  21. Partheniades, E., Kennedy, J.F., Etter, R.J. and Hoyer, R.P. (1966). Investigations of the depositional behavior of fine cohesive sediments in an annular rotating channel. Rep. No. 96, Hydrodynamics Lab., M. I. T., Cambridge.