A Coal Mine Dump Stability Analysis—A Case Study
Ashutosh Kainthola, Dhananjai Verma, S. S. Gupte, T. N. Singh
DOI: 10.4236/gm.2011.11001   PDF    HTML     11,594 Downloads   27,304 Views   Citations


The present paper mainly deals with a case study of failed dump slope in western coalfield limited, Nagpur, India. A huge mass of debris flow had happened during the routine the activity of mining. The failed dump had a height of 75 m with 43? slope angle which had slipped forward by 18m. Representative loose dump material samples were collected from the site and tested to determine the physico-mechanical properties of dump material. The dump material consisted of loose fragments and lumps of friable sandstone, shale, clay and carbonaceous shale. To evaluate the condition of failure, a well known, shear strength reduction tech-nique has been applied to achieve the desired factor of safety using two dimensional finite element code. Fi-nally, a economical, sustainable and stable dump angle and height has been suggested for smooth and safe disposal of the dump.

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A. Kainthola, D. Verma, S. Gupte and T. Singh, "A Coal Mine Dump Stability Analysis—A Case Study," Geomaterials, Vol. 1 No. 1, 2011, pp. 1-13. doi: 10.4236/gm.2011.11001.

Conflicts of Interest

The authors declare no conflicts of interest.


[1] Upadhyay, O. P., Sharma, D. K. and Singh, D. P., “Factors affecting stability of waste dumps in mines,” International Journal of Surface Mining and Reclamation, Vol. 4, 1990, PP. 95-99.
[2] Bishop A. W, “The use of the slip circle in the stability analysis of slopes,” Geotechnique, Vol. 5, 1955, pp. 7-17.
[3] Calder, P. N. and Workman, J. L., “The design of stable highwalls and spoil piles in strip mining,” SME-AIME Meeting, Minneapolis, Minn., Preprint, 1980, pp. 80-368.
[4] Richards, B. G., Coulthard, M. A., and Toh, C. T., “Analysis of slope stability at Goonyella mine,” Canadian Geotechnical Journal, Vol. 18, 1981, pp. 179-194.
[5] Griffiths, D. V. and Lane, P. A., “Slope stability analysis by finite elements,” Geotechnique, Vol. 49, No. 3, 1999, pp. 387-403.
[6] Singh, T. N. and Chaulya, S. K.,” External Dumping of Overburden in Opencast Mine,” Indian Journal of Engineers, Vol. 22 (1 & 2), 1992, pp. 65-73.
[7] Singh, T. N., Singh, A. P. and Goyal, M., “Stabil-ity of Waste Dump and its Relation to Environment,” Indian Journal of Cement Review, Vol. 9(2), 1994, pp. 15-21.
[8] Singh, A. P. and Singh, T. N., “Assessing instabil-ity of Coal Mine waste dump,” The Indian mineral industry journal, 2006, pp. 113-118.
[9] Morgenstern, N. R. and Price, V. E., “The analysis of the stability of general slip surface,” Geotechnique, Vol. 15, No. 4, 1965, pp. 289-290.
[10] Dawson, E. M., Roth W.H. and Drescher, A., “Slope Stability Analysis by Strength Reduction”, Geotech-nique, Vol. 49, No. 6, 1999, pp. 835-840.
[11] Khandelwal M. and Singh, T. N., “Prediction of Blast induced ground vibration using intelligent approach - A Case Study,” I33rd Mine Safety Workshop, Rajasthan, 2009, pp. 45-48.
[12] Steiakakis, E., Kavouridis K. and Monopolis, D., “Large scale failure of the external waste dump at the South Field lignite mine,” Northern Greece, Engineering Geology Vol. 104, 2009, pp. 269-279.
[13] Chowdhury, R., “Geotechnical Slope Analysis,” Published by CRC Press, New York, 2009,
[14] Matsukura, Y. and Mizuno, K., “The influence of weathering on the geotech-nical properties and slope angles of mudstone in the Mineoka earth-slide area,” Japan. Vol. 11, No. 3, 2006, pp. 263-273.
[15] Norris, R. M. and Back, W., “Erosion of seacliffs by groundwater. Groundwater Geomorphology: The role of subsurface water in Earth-surface processes and land forms,” C. G. Higgins and D. R. Coates, eds., Geological Soci-ety of America, Boulder, Colo., 1990, pp. 283-290.
[16] Hampton, M., “Gravitational failure of sea cliffs in weakly lithified sediment,” Environmental Engineering Geosciences, Vol. 83, 2002, pp. 175-191.
[17] Barton, M. E. and Cresswell, A., “Slope stability in a sand/ sandstone border-line material,” Proc., 2nd Int. Symp., The Geotechnics of Hard Soils—Soft Rocks, Vol. 3, A. Evangelista and L. Picarelli, eds., Balkema, Rotterdam, The Netherlands, 1998, pp. 1051-1055.
[18] Mohr, O., “Ueber die Darstellung des Span-nungszustandes und des Deformationszustandes eines K?r-perelementes und über die Anwendung derselben in der Fes-tigkeitslehre,” Civilengenieur, Vol. 28, 1882, pp.113-56.
[19] Chaulya, S. K., Singh, R. S., Chakraborty, M. K. and Dhar, B.B, “Numerical modelling of biostabilisation for a coal mine overburden dump slope,” Ecological Modelling, Vol. 14, 1999, pp. 275-286.
[20] American Society for Testing and Materials, Standard test method for direct shear test of soils under consolidated drained conditions. ASTM D3080-98. An-nual book of ASTM Standards. ASTM, 1998, West Consho-hocken, PA.
[21] Chakravorty, M. K., Chaulya, S. K. and Singh T. N., “Method of waste dump stability analysis—an overview,” In: Proceeding national symposium. Engineering, mining and ground control, technology, Varanasi, 1996, pp. 287-2.
[22] Gue S. S. and Tan, Y. C., “The Determination of shear strength in residual soils for slope stability analysis,” Seminar Cerun Kebangsaan, 2001, Cameron High-lands.
[23] Singh T. N. and Naidu S., “Influence of strain Rate and cyclic compression on physicmechanical behavior of rocks,” Indian. Journal. of Engineering. and material sciences, Vol. 59, 2000, pp. 482-486.
[24] ISRM, “Suggested method for the determining the strength of the rock materials in triaxial compression: revised version,” International Journal Rock Mining Science Geo-mechanics Abstract, Vol. 20,1983, PP.283-290
[25] Zhou, W. Y., Xue L. J., Yang Q., and Y. R. Liu, “Rock slope stability analysis with nonlinear finite element method,” Taylor & Francis, 1994, pp. 503-507.
[26] Ann, T., SCheang,. W. Hai O. P and D. Ta, “Finite Element Analysis of A Soil Nailed Slope-Some Recent Experience,” GeoAsia, 2004.
[27] Rocscience, “A new area in slope stability analysis: Shear strength reduction finite element technique.” RocNews. 2004.
[28] Jha, G. K. and Lal, K. M., “Slope stability of ex-ternal OB dumps”, Opencast, 1998, pp.119-125.

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