Abstract
The stability of mine waste dump is of paramount importance from economic and safety point of view. The present paper deals with the stability analysis of an internal dragline dump of an opencast coal mine by finite element method to classify input parameters in terms of sensitivity. Sensitivity analysis has been carried out for geometrical and geotechnical parameters of dump slope. It has been concluded from the results that “friction angle” is a more sensitive parameter as compared to the cohesion of dump material. The geometrical parameters of “slope angle” and “height of dragline dump” are classified as very high sensitive. The “height of main dump” could be classified as least sensitive, whereas, “gradient of the seam” and “thickness of coal rib” as medium sensitive parameters.
Similar content being viewed by others
References
Benjamin FZ, Harold M, van Es HM, Sullivan PJ (2003) Modeling slope stability in honduras: parameter sensitivity and scale of aggregation. Soil Sci Soc Am J 67(1):268–278
Bowman PM, Gilchrist HG (1978) Waste dump instability and its operational impact for a Canadian Plains lignite mine. In: Proceedings of the international symposium on stability in coal mining, Vancouver, pp 381–394
Cala M, Flisiak J (2003) Slope stability analysis with numerical and limit equilibrium methods. Computer methods in mechanics, June 3–6 Gliwice, Poland, CMM-2003. Available from http://home.agh.edu.pl/cala/papers/2003_3.pdf. Accessed 10 May 2010
Castillo E, Castillo C, Minguez R (2008) Sensitivity analysis in optimization and reliability problems. Reliab Eng Syst Saf 93(12):1788–1800
Cheng YM, Lansivaara T, Wei WB (2007) Two-dimensional slope stability analysis by limit equilibriumand strength reduction methods. Comput Geotech 34(3):137–150
Cho SE (2007) Effects of spatial variability of soil properties on slope stability. Eng Geol 92(3–4):97–109
Fernando J, Nag D (2003) A study of internal overburden dump design and stability analysis for Hazelwood Power Mine, Latrobe Valley, Victoria, Australia. Application of Computers and Operations Research in the Minerals Industries, South African Institute of Mining and Metallurgy, pp 267–274
Fossil (2006) Overburden dump stability: northern coalfields limited. Available from http://fossil.energy.gov/international/Publications/cwg_april06_ds_ncl.pdf. Accessed 2 Feb 2008
Griffiths DV, Fenton GA (2004) Probabilistic slope stability analysis by finite elements. J Geotech Eng Div ASCE 130(5):507–518
Griffiths DV, Lane PA (1999) Slope stability analysis by finite elements. Geotechnique 49(3):387–403
Han X, Chao MHE, Zhang B (2009) Sensitivity analysis for parameters of a monitoring system for steep slopes of open-pit mines. Min Sci Technol 19(4):441–445
Hancock GR, Turley E (2006) Evaluation of proposed waste rock dump designs using the SIBERIA erosion model. Environ Geol 49(5):765–779
Kasmer O, Ulusay R, Gokceoglu C (2006) Spoil pile instabilities with reference to a strip coal mine in Turkey: mechanisms and assessment of deformations. Environ Geol 49(4):570–585
Lenhart TK, Eckhardt NF, Frede HG (2002) Comparison of two different approaches of sensitivity analysis. Phys Chem Earth Parts A/B/C 27(9–10):645–654
Malanowski K, Maurer H (1996) Sensitivity analysis for parametric optimal control problems with control-state constraints. Comput Optim Appl 5(3):253–283
Roy I (2006) Effect of opencast mine floor inclination on stability of back filled Dump under varying hydro-geological conditions—a case study. Inst Eng 87:23–29
Sharma A, Rai R, Shrivastva BK (2011) Stability analysis of internal mine waste dump by numerical simulation. Indian J Min Eng 50(11):232–238
Speck RC, Huang SL, Kroeger EB (1993) Large-scale slope movements and their affect on spoil-pile stability in Interior Alaska. Int J Surf Min Reclam 7(4):161–166
Yadav GS (1995) Relating hydraulic and geo-electric parameters of the Jayant aquifer, India. J Hydrol 167(1–4):23–38
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Rai, R., Kalita, S., Gupta, T. et al. Sensitivity Analysis of Internal Dragline Dump stability: Finite Element Analysis. Geotech Geol Eng 30, 1397–1404 (2012). https://doi.org/10.1007/s10706-012-9541-2
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s10706-012-9541-2