Property Evaluation of Tailings as the Mining Paste Backfill Material

doi:10.12972/ksmer.2013.50.1.124

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2013 Vol.50, Issue 1 Preview Page Next Page

Research Paper

Property Evaluation of Tailings as the Mining Paste Backfill Material 광산 채굴공동 페이스트 충전 재료로서의 광물찌꺼기 특성 평가: 이호운·김재동·유성곤·김태혁
Ho-Woon Lee, Jae-Dong Kim, Sung-Kon Yu and Tae-Heok Kim

28 February 2013. pp. 124-133

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Abstract

Backfill can be classified into paste backfill, hydraulic backfill and rock backfill according to the filling materials and the transferring methods. This paper aims at using the tailings at Sangdong tungsten Mine as a backfill material to solve the environmental and economic problems caused from the tailing dumps. It appeared that the particle size distribution and the components of the tailings sampled in this study were to be appropriate as filling material upon the physical and the environmental conditions. Cement-tailing mixture was set according to the mixing ratio of cement by 3%, 4%, 5% and 6% for property test of filling material and the slump values of the sample mixture were set to 170 mm, 200 mm and 230 mm. Curing periods were 7 days, 14 days and 28 days, respectively. The uniaxial compressive strength appeared to be affected by the content of cement, slump value and curing period. The strength was to be higher as the content of cement became higher and slump value lower. It showed the highest value of 668 kPa when the content of cement was 6%, slump value, 170mm and the curing period, 28days. After examing the seepage water quality from the filling materials, the amounts of pollutant were found to meet environmental standards.

Keywords

Paste fill

Fill mass

Tailings

Mix design

Slump

충전(Backfill)은 재료와 이송방법에 따라 페이스트 충전(Paste backfill), 슬러리(수력)충전, 폐석 충전으로 구분된다. 본 논문은 광물찌꺼기로 인해 발생하는 환경적, 경제적 문제 해소 및 충전 비용절감을 위한 페이스트 충전 재료로 상동중석광산 광물찌꺼기를 이용하고자 이에 따른 특성을 평가하였다. 충전물의 물성시험을 위하여 시멘트 배합량은 3%, 4%, 5%, 6%로 설정하였고, 슬럼프(slump) 값은 170 mm, 200 mm, 230 mm, 재령일은 7일, 14일, 28일로 설정하였다. 본 연구에서 사용된 광물찌꺼기의 입도분포는 20 μm이하가 15% 이상 되어야한다는 조건을 만족하였으며, 구성성분은 페이스트 충전물 조건 및 환경적 조건에 적합한 것으로 나타났다. 양생된 충전물의 일축압축강도는 시멘트 함량과 슬럼프 값, 재령일에 영향을 받는 것으로 나타났다. 시멘트 함량이 높고 슬럼프 값이 작을수록 강도 값은 크게 나타났으며, 시멘트 함량 6%, 슬럼프 값 170 mm, 재령 28일 때, 668 kPa로 가장 큰 값을 보였다. 충전물의 수질환경 영향을 검토한 결과 수질오염물질 배출허용기준을 만족하는 것으로 나타났다.

키워드

페이스트 충전

충전물

광물찌꺼기

배합설계

슬럼프

References

Benzaazoua, M., Belem, T. and Bussie`re, B., 2002, “Chemical factors that influence the performance of mine sulphidic paste backfill,” Cement and Concrete Research, Vol. 32, No.7, pp. 1133-1144.
Brady, B.H.G. and Brown, E. T., 1993, Rock Mechanics for Underground Mining, 2nd Ed., Champman & Hall, London, British, p. 571.
Cai, S., 1983, “A simple and convenient method for design of strength of cemented hydraulic fill,” Proc. of international symposium on mining with backfill, Lulea, Sweden, June 7-9, pp. 405-412.
Golder Associates, 1998, Paste technology for underground backfill and surface tailings disposal application, Golder Associates, Mississauga, Canada, pp. 1-12.
Grice, T., 2001, “Recent mine developments in Austrailia,” Proc. of international symposium on mining with backfill, Seattle, USA, September 17-19, pp. 351-357.
Hassani, F.P. and Bois, D., 1992, “Economic and technical feasibility for backfill design in Quebac undergrond mines,” Canada-Quebec Mineral Development Agreement, Research & Development in Quebac Mines. Contract no. EADM 1989-1992, File no.71226002
Jung, M.C., Jung, M.Y. and Choi, Y.W., 2004, “Environmental Assessment of Heavy Metals Around Abandoned Metalliferous Mine in Korea,” Econ. Environ. Geol., Vol. 37, No. 1, pp. 21-33.
Jung, M.C., 2002, “Status of environmental pollution due to mining development,” Proc. of Mine Reclamation Policy and technology symposium, KIGAM, Daejeon, July 19, pp. 37-53.
Jung, M.Y., Jung, M.C. and Choi, Y.W., 2004, “Development of Porous Support with Mine Waste Minerals,” Econ. Environ. Geol., Vol. 37, No.1, pp. 143-151.
Jung, Y.W., 2008, “Mining Backfill Method and Application Case,” Mine Reclamtion Technology, Vol. 2, No. 1, pp. 20-28.
KSA, 2001, KS Handbook, KSA, Seoul, Korea, p. 2046.
Kwon, H. H. and Nam, K. S., 2007, Mine Reclamation Engineering, Donghwa Technology Publishing, Paju, Korea, pp. 267-292.
Lee, G. H., Woo, H. S., Rhee, S. S. and Park, J. B., 2009, “Effect of Cement and Quicklime Improved Soil on pH,” Proc. of 2009 KSCE Anual General Meeting, KSCE, Hoengseong, October 21-23, pp. 2039-2042.
MIRECO, 2006, “A Study on the Treatement of tailings and leachate of Chonju Il Mine,” Technology Book 06-02 pp. 242-320.
MIRECO, 2011, “Development of high-efficiency Backfill Technology,” Technology Book 2011-111, pp. 21-22.
Potvin, Y., Thomas, E. and Fourie, A., 2005, Handbook on mine fill, ACG, Nedlans, Australia, pp. 1-179.
Sandra, S., 1999, Characterisation of Tailings for Paste Backfill System Design, MS Thesis, The University of British Columbia, Canada.
Song, W.K., Min, J.S., Sun, W.C., Shin, J. H., Lee, D.K., Lim, K.J., Jeon, Y.S., Jung, Y.W., Jung. Y.B., Ji, S.W., Han, K.C., Kwon, H.H., Kim, T.H., Shim, Y.S., Lee, J.S., Jung, M.C. and Cho, W.J., 2007, “A Study on Treatment Sangdong Tailings Yard Permanent,” MIRECO Technology Book 2007-48 pp. 137-215.
Yulmu, M., 2001, “Backfill Practices at Cayeli Mine,” Proc. 17th International Mining Congress and Exhibition of Turkey, IMCET, Turkey, June 19-22, pp. 334-339.

Information

Publisher :The Korean Society of Mineral and Energy Resources Engineers
Publisher(Ko) :한국자원공학회
Journal Title :Journal of the Korean Society of Mineral and Energy Resources Engineers
Journal Title(Ko) :한국자원공학회지
Volume : 50
No :1
Pages :124-133
DOI :https://doi.org/10.12972/ksmer.2013.50.1.124

[1] Benzaazoua, M., Belem, T. and Bussie`re, B., 2002, “Chemical factors that influence the performance of mine sulphidic paste backfill,” Cement and Concrete Research, Vol. 32, No.7, pp. 1133-1144.

[2] Brady, B.H.G. and Brown, E. T., 1993, Rock Mechanics for Underground Mining, 2nd Ed., Champman & Hall, London, British, p. 571.

[3] Cai, S., 1983, “A simple and convenient method for design of strength of cemented hydraulic fill,” Proc. of international symposium on mining with backfill, Lulea, Sweden, June 7-9, pp. 405-412.

[4] Golder Associates, 1998, Paste technology for underground backfill and surface tailings disposal application, Golder Associates, Mississauga, Canada, pp. 1-12.

[5] Grice, T., 2001, “Recent mine developments in Austrailia,” Proc. of international symposium on mining with backfill, Seattle, USA, September 17-19, pp. 351-357.

[6] Hassani, F.P. and Bois, D., 1992, “Economic and technical feasibility for backfill design in Quebac undergrond mines,” Canada-Quebec Mineral Development Agreement, Research & Development in Quebac Mines. Contract no. EADM 1989-1992, File no.71226002

[7] Jung, M.C., Jung, M.Y. and Choi, Y.W., 2004, “Environmental Assessment of Heavy Metals Around Abandoned Metalliferous Mine in Korea,” Econ. Environ. Geol., Vol. 37, No. 1, pp. 21-33.

[8] Jung, M.C., 2002, “Status of environmental pollution due to mining development,” Proc. of Mine Reclamation Policy and technology symposium, KIGAM, Daejeon, July 19, pp. 37-53.

[9] Jung, M.Y., Jung, M.C. and Choi, Y.W., 2004, “Development of Porous Support with Mine Waste Minerals,” Econ. Environ. Geol., Vol. 37, No.1, pp. 143-151.

[10] Jung, Y.W., 2008, “Mining Backfill Method and Application Case,” Mine Reclamtion Technology, Vol. 2, No. 1, pp. 20-28.

[11] KSA, 2001, KS Handbook, KSA, Seoul, Korea, p. 2046.

[12] Kwon, H. H. and Nam, K. S., 2007, Mine Reclamation Engineering, Donghwa Technology Publishing, Paju, Korea, pp. 267-292.

[13] Lee, G. H., Woo, H. S., Rhee, S. S. and Park, J. B., 2009, “Effect of Cement and Quicklime Improved Soil on pH,” Proc. of 2009 KSCE Anual General Meeting, KSCE, Hoengseong, October 21-23, pp. 2039-2042.

[14] MIRECO, 2006, “A Study on the Treatement of tailings and leachate of Chonju Il Mine,” Technology Book 06-02 pp. 242-320.

[15] MIRECO, 2011, “Development of high-efficiency Backfill Technology,” Technology Book 2011-111, pp. 21-22.

[16] Potvin, Y., Thomas, E. and Fourie, A., 2005, Handbook on mine fill, ACG, Nedlans, Australia, pp. 1-179.

[17] Sandra, S., 1999, Characterisation of Tailings for Paste Backfill System Design, MS Thesis, The University of British Columbia, Canada.

[18] Song, W.K., Min, J.S., Sun, W.C., Shin, J. H., Lee, D.K., Lim, K.J., Jeon, Y.S., Jung, Y.W., Jung. Y.B., Ji, S.W., Han, K.C., Kwon, H.H., Kim, T.H., Shim, Y.S., Lee, J.S., Jung, M.C. and Cho, W.J., 2007, “A Study on Treatment Sangdong Tailings Yard Permanent,” MIRECO Technology Book 2007-48 pp. 137-215.

[19] Yulmu, M., 2001, “Backfill Practices at Cayeli Mine,” Proc. 17th International Mining Congress and Exhibition of Turkey, IMCET, Turkey, June 19-22, pp. 334-339.

Journal of the Korean Society of Mineral and Energy Resources Engineers ISSN:2288-0291(Print) 2288-2790(Online) 한국자원공학회지

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