Document Type : Case Study
Authors
Visvesvaraya National Institute of Technology, Nagpur 440010, Maharashtra, India
10.22044/jme.2025.15137.2896
Abstract
Due to its intricate challenges, Black cotton (BC) soil is dumped separately in mining areas, and this study focuses on a BC soil dump at an open-cast mine site. This soil, characterized by cohesion of 26-40 kPa and internal friction angle of 13°-17°, exhibits significant expansion and contraction with moisture fluctuations, swelling during wet periods, and shrinking during dry spells, posing considerable challenges in mining areas. The Ministry of Environment, Forest and Climate Change (MoEFCC) has suggested constructing a 15-20m wall to protect the village on the periphery of the BC soil dump of 36m height. This study aimed to identify sustainable and economical alternative feasible remedial solutions. Field testing, including borehole investigation, was conducted to determine the stratigraphy beneath the dump. Numerical analysis using SLOPE/W software was performed for slope optimization and to evaluate remedial measures such as stone pitching and rockfill trench. The study shows that the dump can be stabilized using the design modification and possible cost-effective measures. Based on field observations, dump material testing, and numerical analysis, alternative remedial measures were proposed and implemented. The study also includes a cost-benefit analysis of the recommended remedial measures.
Keywords
Main Subjects
- Gupta, T., Rai, R., Jaiswal, A., & Shrivastva, B. K. (2014). Sensitivity analysis of coal rib stability for internal mine dump in opencast mine by finite element modelling. Geotechnical and Geological Engineering, 32, 705–712.
- Rai, R., Kalita, S., Gupta, T., & Shrivastva, B. K. (2012). Sensitivity analysis of internal dragline dump stability: Finite element analysis. Geotechnical and Geological Engineering, 30, 1397–1404.
- Rajak, T. K., Yadu, L., & Chouksey, S. K. (2020). Strength characteristics and stability analysis of ground granulated blast furnace slag (GGBFS) stabilized coal mine overburden-pond ash mix. Geotechnical and Geological Engineering, 38, 663–682.
- Gouda, J., Srinivasan, V., Reddy, D. S., & Shende, R. (2024). Evaluating overburden materials for haul road construction with and without cellular confinement: A comprehensive study in Indian context. Mining, Metallurgy & Exploration.
- Gouda, J., Reddy, D. S., Srinivasan, V., & Dudhabaware, A. (2025). Unlocking the potential of mine overburden materials and coconut coir geotextile: A full-scale study on reinforcing low-volume roads in India. Road Materials and Pavement Design.
- Poulsen, B., Khanal, M., Rao, A. M., et al. (2014). Mine overburden dump failure: A case study. Geotechnical and Geological Engineering, 32, 297–309.
- Zou, D. H. (2016). Exploring a waste dump site failure – Possible causes and prevention measures. International Journal of Geohazards and Environment, 2, 25–33.
- Bakhaeva, S. P., Gogolin, V. A., & Ermakova, I. A. (2016). Calculating stability of overburden dumps on weak bases. Journal of Mining Science, 52, 454–460.
- Upadhyay, O. P., Sharma, D. K., & Singh, D. P. (1990). Factors affecting stability of waste dumps in mines. International Journal of Surface Mining, Reclamation and Environment, 4, 95–99.
- Kainthola, A., Verma, D., Gupte, S. S., & Singh, T. N. (2011). A coal mine dump stability analysis—A case study. Geomaterials, 1, 1–13.
- Mohanty, M., Sarkar, R., & Das, S. K. (2022). Probabilistic assessment of effects of heterogeneity on the stability of coal mine overburden dump slopes through discrete element framework. Bulletin of Engineering Geology and the Environment, 81.
- Behera, P. K., Sarkar, K., Singh, A. K., et al. (2016). Dump slope stability analysis – A case study. Journal of the Geological Society of India, 88, 725–735.
- Sharma, S., & Roy, I. (2015). Slope failure of waste rock dump at Jayant opencast mine, India: A case study. International Journal of Applied Engineering Research, 10, 33006–33012.
- Sengupta, S., Sharma, S., & Roy, I. (2016). Stability analysis of overburden internal dump material of Amlohri opencast coal mine, India. ARPN Journal of Earth Sciences, 5, 50–57.
- Dash, A. K. (2019). Analysis of accidents due to slope failure in Indian opencast coal mines. Current Science, 117, 304–308.
- Ismail, M. A. M., Ng, S. M., & Abustan, I. (2017). Parametric study of horizontal drains for slope stability measure: A case study in Putrajaya, Malaysia. KSCE Journal of Civil Engineering, 21, 2162–2167.
- Verma, D., Kainthola, A., Thareja, R., & Singh, T. N. (2013). Stability analysis of an open cut slope in Wardha valley coal field. Journal of the Geological Society of India, 81, 804–812.
- Zhang, L., Wang, J., Bai, Z., & Lv, C. (2015). Effects of vegetation on runoff and soil erosion on reclaimed land in an opencast coal-mine dump in a loess area. Catena, 128, 44–53.
- Steiakakis, E., Thalassinakis, J., Agioutantis, Z., & Galetakis, M. (2016). Failure process of the external waste dump of a lignite mine using (FEM). In 13th International Symposium on Continuous Surface Mining (ISCSM 2016) (pp. 587–593).
- Verma, H., Rudra, E. S. C. K., Rai, R., et al. (2023). Design of dump slope on weak foundation. Journal of the Institution of Engineers (India): Series D, 104, 107–118.
- Puell Ortiz, J. (2017). Methodology for a dump design optimization in large-scale open pit mines. Cogent Engineering, 4(1), 1–11.
- Wang, Y., Nazem, M., & Smith, J. V. (2022). Effect of dimension variables on the behaviour of slopes stabilised by an integrated method combining gabion-faced geogrid-reinforced retaining wall with embedded piles. International Journal of Geosynthetics and Ground Engineering, 8, 1–19.
- Shende, R., Srinivasan, V., Ahmed, M. S., & Mandal, A. (2024). Probabilistic retro-analysis of failed OB dump on the weak ground with water table variation and varied preventive measures. Physics and Chemistry of the Earth, 136, 103784.
- Sarfarazi, V., Tabaroei, A., Dias, D., et al. (2024). 2D discrete element analysis of the footing above excavated circle in soil. Scientific Reports, 14, 1–18.
- Sarfarazi, V., Zhou, L., Haeri, H., et al. (2025). Failure mechanisms of concrete-bolt attachment surface: Impact of cable bolt indent number and shape. Journal of Mining and Environment, 16, 223–239.
- Sarfarazi, V., Haeri, H., Marji, M. F., et al. (2023). Investigation of shear properties of open non-persistent latitudinal discontinuities of same level. Journal of Mining and Environment, 14, 1361–1371.
- Sarfarazi, V., Haeri, H., Marji, M. F., & Saeedi, G. (2024). On 2D discrete element analyses of transversely isotropic elastic geo-materials; Insight to scale effects and loading rate. Journal of Mining and Environment, 15, 1051–1070.
- Daftaribesheli, A., Ataei, M., & Sereshki, F. (2011). Assessment of rock slope stability using the fuzzy slope mass rating (FSMR) system. Applied Soft Computing Journal, 11, 4465–4473.
- Goshtasbi, K., Ataei, M., & Kalatehjary, R. (2008). Slope modification of open pit wall using a genetic algorithm – Case study: Southern wall of the 6th Golbini Jajarm bauxite mine. Journal of the Southern African Institute of Mining and Metallurgy, 108, 651–656.
- Chand, K., & Koner, R. (2023). Internal mine dump slope stability and failure zone identification using 3D modelling. Journal of Mining and Environment, 14, 1105–1119.
- Rezaei, S., Rafiee, R., Ataei, M., & Javadi, M. (2023). Sustainability analysis of waste dump in mine No. 4 of Golgohar, Sirjan, for purpose of increasing waste dump volume. Journal of Mining and Environment, 14, 1373–1391.
- Yang, Z., Song, Z., Ding, X., et al. (2025). Investigating slope stability of multiple stopes prone to instability in the Ziluoyi iron ore mining site. Scientific Reports, 15, 1900.
- Kumar, S., & Dey, K. (2025). Stability analysis of overburden rocks — A new approach. Arabian Journal of Geosciences.
- Enkhbold, B., Ikeda, H., Toriya, H., & Adachi, T. (2025). Internal waste dump stability analysis: Insights from numerical simulations. Discover Geoscience.
- Gupta, T., & Singh, T. N. (2018). Geo-hydrological stability analysis of fly ash stabilised overburden dump slopes in opencast coal mines using finite element analysis. International Journal of Advanced Science, Engineering and Information Technology, 8, 405–410.
- Amarsaikhan, T., Shimada, H., Wahyudi, S., et al. (2018). Optimization of dump bench configuration to improve waste dump capacity of Narynsukhait open pit coal mine. International Journal of Geosciences, 9, 379–396.
- Geete, S. S., Singh, H. K., Singh, T. N., & Dahale, P. P. (2023). Stability analysis of overburden dump slope of coal/mineral mines: A review. Journal of Mines, Metals and Fuels, 1215–1223.
- Singh, V. K., Masood, M. M., & Verma, T. (2024). Slope monitoring techniques in opencast mines: A review of recent advances. Journal of Mines, Metals and Fuels, 83–92.
- Chand, K., & Koner, R. (2024). Mine active internal dump susceptible zone identification using MMO technique. Journal of Mines, Metals and Fuels, 165–177.
- Srivastava, N., Ram, L. C., & Masto, R. E. (2014). Reclamation of overburden and lowland in coal mining area with fly ash and selective plantation: A sustainable ecological approach. Ecological Engineering, 71, 479–489.
- Navagire, O. P., Sharma, S. K., & Rambabu, D. (2022). Stabilization of black cotton soil with coal bottom ash. Materials Today: Proceedings, 52, 979–985.
- Ikeagwuani, C. C., Obeta, I. N., & Agunwamba, J. C. (2019). Stabilization of black cotton soil subgrade using sawdust ash and lime. Soils and Foundations, 59, 162–175.
- Hensen, E. J. M., & Smit, B. (2002). Why clays swell. Journal of Physical Chemistry B, 106, 12664–12667.
- Noorany, I., & Scheyhing, C. (2015). Lateral extension of compacted-fill slopes in expansive soils. Journal of Geotechnical and Geoenvironmental Engineering, 141, Article 04014106.
- Vonk, C. K., & Valdes, J. R. (2023). Soil swell accommodation by compressible inclusions. International Journal of Geomechanics, 23, Article 04023002.
- Soundara, B., & Selvakumar, S. (2020). Experimental investigation on the swelling behavior of expansive soils with EPS geofoam inclusion. Indian Geotechnical Journal, 50, 519–530.
- Hartanto, H., Prabhu, R., Widayat, A. S. E., & Asdak, C. (2003). Factors affecting runoff and soil erosion: Plot-level soil loss monitoring for assessing sustainability of forest management. Forest Ecology and Management, 180, 361–374.
- Shi, Z. H., Fang, N. F., Wu, F. Z., et al. (2012). Soil erosion processes and sediment sorting associated with transport mechanisms on steep slopes. Journal of Hydrology, 454–455, 123–130.
- Jangir, H. K., Shende, R., Navagire, O., et al. (2025). Feasibility study for providing remedial measures for overburden dump in new Majri UG to OC mine, WCL Majri area, Warora, Chandrapur. Journal of Sustainable Mining, 24.
- Zhao, C., Gao, J., Huang, Y., et al. (2016). Effects of vegetation stems on hydraulics of overland flow under varying water discharges. Land Degradation & Development, 27, 748–757.
- Samal, S. K., Mishra, S. N., Banchhor, R. K., & Mishra, A. K. (2023). Dump management in South Kaliapani chromite mines. Journal of Mines, Metals & Fuels, 21, 48–55.
- Shende, R., Patil, M., Srinivasan, V., et al. (2025). Engineering assessment of reinforced earth wall and vehicular underpass sections in a six-lane highway: Analysis, causes, and remedial measures. Case Studies in Construction Materials, 22, e04482.
- Bishwal, R. M., Sen, P., & Jawed, M. (2018). A laboratory study on estimation of shear strength and compaction properties of overburden dump material in Indian coal mines. Journal of the Geological Society of India, 92, 363–367.
- Koner, R., & Chakravarty, D. (2016). Characterisation of overburden dump materials: A case study from the Wardha valley coal field. Bulletin of Engineering Geology and the Environment, 75, 1311–1323.
- Bureau of Indian Standards. (1970). Classification and identification of soils for general engineering purposes (IS:1498–1970). New Delhi, India: BIS.
- Sekhar, S., Singh, U. C., Porathur, J. L., & Budi, G. (2021). Overburden dump stabilization over weak floor using rock-filled trench near the toe—a numerical modeling approach. Arabian Journal of Geosciences, 14.
- Indian Roads Congress. (2011). Recommended practices for treatment of embankment and roadside slopes for erosion control (First Revision) (IRC:56–2011).
- Bureau of Indian Standards. (1985). Code of practice for protection of slope for reservoir embankment (First Revision) (IS:8237–1985).
- Emeka, O., Nahazanan, J., Kalantar, H., Khuzaimah, B., & Sani, Z. O. (2021). Slope reinforcement technology. Land, 10, Article 333.
- Indian Roads Congress. (2014). A manual of guidelines of road drainage (IRC: SP:42-2014), 1-138.
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