Browse > Article

Slope Stability Analysis of Improved Wasted Mine Tailing Landfill Using Fine Recycled-Concrete Aggregates  

Ahn, Nam-Kyu (Department of Civil & Environmental Eng., Chung-Ang University)
Kim, Tae-Hyung (Division of Civil & Environmental System Engineering, Korea Maritime University)
Oh, Je-Ill (Department of Civil & Environmental Eng., Chung-Ang University)
Lee, Ju-Young (Department of Environmental Engineering, Chung-Ang University)
Publication Information
Journal of Korean Society of Environmental Engineers / v.27, no.2, 2005 , pp. 145-150 More about this Journal
Abstract
An extensive numerical analysis is carried out to investigate the slope stability of the wasted mine tailing landfill constructed by the utilization of fine recycled-concrete aggregates. To do this, first, the physical and mechanical properties of the fine recycled-concrete aggregates and the wasted mine tailing are investigated, and the settlement and the change of material properly of the fine recycled-concrete aggregates resulted from reaction with water are also examined. The $OH^-$ elution from the fine recycled-concrete aggregates reacted with water slightly causes the change of material properties such as porosity, permeability and waster absorption, but the settlement does not happen noticeably. The results of numerical analysis of the landfill slope built with wasted mine tailing and recycled-concrete aggregates in alternate layer indicate that slope stability increases with decreasing the slope ratio, with decreasing the groundwater level inside slope, and with increasing the depth of fine recycled-concrete aggregate layer. Based on this study, thus, engineers working in related to the wasted mine tailing landfill design and construction using the fine recycled-concrete aggregates should be considered the slope ratio, the groundwater level, the depth of fine recycled-concrete aggregate layer.
Keywords
Waste Mine Tailing; Acid Mine Drainage; Recycled-Concrete Aggregates; Slope Stability; Landfill;
Citations & Related Records
연도 인용수 순위
  • Reference
1 이동훈. 오세강, 최충렬, 박만, 최정, '증석광 폐재광미의 매립지에서 나오는 침출수 증의 중금속 제거,' 한국환경공학회지, 19(3), 218-222(2000)
2 윤성진, 김성범, 문경주, 소양성, '폐광미를 혼입한 경화체의 특성,' 추계학술발표회논문집, 한국폐기물학회, pp. 89-92(2002)
3 송영석, '활동억지시스템으로 보강된 사면의 설계법,' 중앙대학교 대학원 박사학위논문(2003)
4 이용수, 조재범, 현재혁, 정하익, '폐콘크리트를 이용한 중금속(Cd, Pb, Cu, $Cr^{6+}$) 제거능 평가, 추계학술발표회 논문집, 한국폐기물학회, pp. 191-194(2000)
5 Bishop, A. W., 'The Use of Slip Circle in the Stability Analysis of Slopes,' Geotechnique, 5, 7-17(1955)   DOI
6 Al-Khafaji, A. W., Andersland, O. B, 'Geotechnical Engineering and Soil Testing,' Saunders College Publishing, Harcout Brace Jovanovich College Publishers, New York(1992)
7 권호진, 박준범, 송영우, 이영생 '토질역학,' 구미서관, pp. 322-354(2001)
8 이인모, '암반역학의 원리,' 도서출판 새론, pp. 53-60 (2004)
9 김종범, 오재일, 박찬식, '콘크리트 재생골재를 이용한 산성광수배수 중화처리,' 대한환경공학회지, 24(1), 21-30(2002)
10 이기철, 이승길, 한인호, 최광호, 정덕영, '금정광산 주변 토양의 중금속 오염현황 및 그 처리 방안,' 추계학술대회논문집, 한국지하수토양환경학회, pp. 189-914 (1998)
11 김태식, 이승학, 이재원, 박준범, 김시현, '폐석회를 이용한 반응 벽체의 폐광 산성 폐수내 황산염 제거 기작,' 춘계학술연구발표논문집(II), 대한환경공학회, pp. 275-276(2001)
12 이재령, 오종기, 이화영, 김성규, 박재구, '알칼리 용출법에 의한 폐광기 광미중의 비소제거에 관한 연구,' 한국토양환경학회지, 2(2), 73-79(1997)