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An Experimental Study on Engineering Characteristics of Wet Dredged Soil and Dry Dredged Soil after Chemical Treatment  

Chang, Yongchai (목포해양대학교 건설시스템공학부)
Park, Kiyoun (목포해양대학교 건설시스템공학부)
Park, Jongcheol (목포해양대학교 건설시스템공학부)
Lee, Ingyu (목포해양대학교 건설시스템공학부)
Publication Information
Journal of the Korean GEO-environmental Society / v.13, no.3, 2012 , pp. 71-76 More about this Journal
Abstract
Since sediment in a stable state is disturbed during the process from sediment in a natural state to dredged soil, the turbidity of water is not good. When the dredged soil settles again, the volume change in the sediment occurs. Coagulant and flocculant are added for turbidity mitigation of the water and faster settling process of suspended solid, and the amount of the substances affects the characteristics of the dredged soil. This study is to investigate the characteristics of the dredged soil depending on the amount of three chemical products added to the wet dredged soil and the dry dredged soil through measuring the suspended solids (SS), volume change and sedimentation velocity. The experimental measurements show that the SS decreased, the volume change rate increased, and the sedimentation velocity increased, as the chemical amount increased. In addition, it was found that the dry dredged soil reacted even with little quantity of the chemicals because derelict and microorganism are removed due to the drying process at $100{\pm}5^{\circ}C$.
Keywords
Wet dredged soil; Dry dredged soil; Suspended soilds; Volume change; Sedimentation velocity;
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  • Reference
1 부산지방해양수산청 부산항건설사무소(1999), 부산신항 준설토 투기장(2차) 실시설계 용역 최종보고서(마무리 단계 설계 자문 자료), 5장, pp. 244-248.
2 유남재(2001), 준설매립토의 침강/압밀과 전단강도 특성 및 예측, 지반환경 및 준설매립에 관한 학술세미나 논문집, 한국지반공학회, pp. 1-41.
3 윤길림, 유승경(2003), 준설토 체적변화에 대한 응집제 및 응결제의 주입효과, 한국지반공학회 논문집, Vol. 19, No. 4, pp. 257-264.
4 조홍연, 윤길림(2002), 응집제 및 응결제 주입에 의한 석호 준설 물질의 체적변화, 한국해양공학회 논문집, Vol. 14, No. 3, pp. 192-200.
5 Hatano, K., Okada, J., Hanahuse,, H., Taniguchi, K.(1996), Bulking Factor of Dredged Clay by Pump Dredger, Proceedings of 31st Annual Meeting of Japanese Geotechnical Society, pp. 551-552(in Japanese).
6 Uchida, K., Suwa, S., Hamada, T.(2002), Materials Characteristics for Reclaimed Lands in Osaka Bay, Proceeding of Korea-Japan Joint Workshop, Busan, Korea, pp. 231-238.