Browse > Article
http://dx.doi.org/10.7843/kgs.2006.22.12.5

Estimate on the Self-Weight Consolidation of Dredging Coarse Soil with Segregating Sedimentation Properties  

Kim, Hyeong-Joo (School of Civil & Environmental Engrg., Kunsan National Univ.)
Lee, Min-Sun (Graduate Student, Dept. of Civil Engrg., Kunsan National Univ.)
Paek, Pil-Soon (Graduate Student, Dept. of Civil Engrg., Kunsan National Univ.)
Jeon, Hye-Sun (Graduate Student, Dept. of Civil Engrg., Kunsan National Univ.)
Publication Information
Journal of the Korean Geotechnical Society / v.22, no.12, 2006 , pp. 5-14 More about this Journal
Abstract
In general, the dredged ground was composed of a big difference of sediment shape through segregating sedimentary of finer soil in case of reclaiming by dredged coarse soils. Therefore, this study was performed to evaluate the change of settling velocity of flow, and the density of sedimentary which is based on settling tests and self-weight consolidation tests, and consolidation test by seepage force according to the percentage of coarse of Kunsan dredge soils. The Yano's method has been applied to estimate the settlement of self-weight consolidation in finer soils at design but it only considers pouring water content and elevation of interface, therefore the other method needs to be introduced for the exact prediction of the settlement of coarse soil in which the segregation sedimentation is occurring. In this study, the settlement of self-weight consolidation was calculated by the change of the density of segregating sedimentary of coarse and finer soils which was analyzed by Yano's method to extend a serious of researches. The self-weight consolidation by Yano's method will not reflect the segregated settling in dredging coarse soil under 40% of #200 passing percentage. As a result, the evaluation technique of settlement of self-weight consolidation considering a change of the density of segregating sedimentary is suggested as a reasonable method that considers the sediment shape of coarse soil.
Keywords
Dredged ground; Dredging coarse soil; Settlement by self-weight consolidation; Density of segregating sedimentary;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
연도 인용수 순위
1 유남재, 얀중선, 이종호, 유병상(1998), '준설매립토 지반의 체적변 화량 예측; 대한토목학회 학술발표회 논문집(II), pp.307-310
2 矢野弘一郎, 鶴谷和夫, 山内豊聴(1984), '浚渫粘土による軟弱埋立 地盤の性状豫測', 日本土木學會 論文集, No.364, pp.1-15
3 Peynircioglu, A. H.(1973), 'Performance of Very Soft Muds Under Very Light Loads and Consolidation of a Muddy Bottom Under a Wide Sand Fill', Proc. 8th I.C.S.M.F.E., Vol.22, pp. 159-163
4 이송, 전종구(2002), '조립토가 혼합된 준설토의 퇴적 및 압밀특성', 한국지반공학지 제18권, 제2호, pp.75-86
5 Imai, G.(1984), 'Applicability of Hydraulic Consolidation Test for Very Soft Clayey Soils', Soils and Foundations, Vol.24, No.2, pp.29-42   DOI   ScienceOn
6 矢野弘一良附(1985), '浚渫泥土の分離堆積', 土と基礎, Vol. 32, No.5, pp.23-28
7 Been, K. and Sills, G, C.(1981), 'Self Weight Consoldidation of Soft Soils: an Experimental and Theoretical Study', Geotechnique, Vol.31, No.4, pp.519-535   DOI   ScienceOn
8 김형주, 오근엽(1999), '연약한 준설매립 점성토 지반의 자중압밀 과정에 관한 연구', 한국지반공학회 논문집 제15권, 제2호, pp. 129-138
9 김형주, 이민선, 이용주, 김대원(2003), '준설토의 체적변화 및 2차 원 퇴적특성에 관한 연구', 한국지반공학회 논문집, 제19권, 제4호, pp.155-165
10 Imai, G.(1981), 'Experimental Studies on Sedimentation Mechanism and Sediment Formation of Clay Materials', Soils and Foundations, Vol.21, No.1, pp.7-20   DOI   ScienceOn
11 Mikasa, M.(1963), 'The Consolidation of Soft Clay-A new consolidation theory and Its application', Tokyo Kojima Shupan-kai, pp.56-86