Browse > Article

An Experimental Study on Parameter Estimation of Settling and Erosional Properties for Cohesive Sediments in Shihwa Lake  

Ryu Hong-Ryul (Dept. of Civil Eng., Chonbuk National Univ.)
Hwang Kyu-Nam (Dept. of Civil Eng. & TICT, Chonbuk National Univ.)
Publication Information
Journal of Korean Society of Coastal and Ocean Engineers / v.18, no.3, 2006 , pp. 179-188 More about this Journal
Abstract
The purpose of this study is to quantitatively estimate the settling and erosional properties for cohesive sediments in Shihwa lake. Settling tests are conducted by multi-depth method using a specially designed 1.8 m tall settling column, and erosion tests are conducted with annular flume under the uniform bed condition. As result of settling tests, it is confirmed that the settling velocity of the cohesive sediments has the range of $0.002 for bed shear stress of $1.14{\sim}1.32g/cm^{3}$, and the erosion rate coefficient decreases with logarithmic function in a range of $18.4{\sim}3.9mg/cm^{2}{\cdot}hr$ with increase of bed shear stress.
Keywords
cohesive sediments; settling test; erosion test; settling column; annular flume;
Citations & Related Records
연도 인용수 순위
  • Reference
1 황규남, 소상돈, 김태민 (2005). 미세-점착성 퇴적물의 침식률 산정을 위한 실험적 연구. 한국해안해양공학회지, 17(2), 119-128
2 Choi, J.H. (1981). Recent clay minerals in the Kunsan estuary and the adjacent continental shelf. M. Sc. Thesis, Dept. of Oceanography, S.N.U
3 황규남, 소상돈 (2002). 환형수조를 이용한 미세-점착성 퇴적물의 침식특성 조사. 한국 수자원학회 학술발표회 논문집(II), 1075-1080
4 Ariathurai, R. and Arulanandan, K. (1978) Erosion rates of cohesive soils. J. Hyd. Div., ASCE. 104, HY2, 279-283
5 Ross, M.A. (1988). Cohesive sediments in estuarine environment. Ph.D. Dissertation, Univ. of Florida, Gainesville, FL
6 Shields A. (1936). Anwendung der Ahnlichkeitsmechanik und Turbulenzforschung auf die Geschiebebewegung. Mitteil. Preuss. Versuchsanst. Wasser Erd. Schiffbau, Berlin, No. 2
7 황규남, 조용식, 이태환 (2002). 새만금 미세점착성 퇴적물의 침강특성 : 퇴적물의 물리.화학적 특성의 영향. 한국수자원학회지, 35(5), 475-484
8 이현승 (2003). 군산해역 점착성 퇴적물의 침식특성에 관한 연구. 석사학위논문, 전북대학교
9 Hwang, K.-N. (1989). Erodibility of fine sediment in wave-dominate environments. Master's Thesis, University of Florida
10 황규남 (2000). 새만금 갯벌퇴적물의 침강속도 산정을 위한 실험적 연구. 대한토목학회논문집, 20(2-B), 277-286
11 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
12 박용철 (1997). 해양환경공정시험방법. 한국해양학회, 국립수산진흥원
13 이재연 (2001). 새만금 해역 갯벌 퇴적물의 침강 특성에 관한 연구. 석사학위논문, 전북대학교
14 천민철 (2003). 군산해역 미세-점착성 퇴적물의 침강특성에 관한 연구. 석사학위논문, 전북대학교