Sustainability Analysis of Waste Dump in Mine No. 4 of Golgohar, Sirjan, for Purpose of Increasing Waste Dump Volume

Rezaei, Sajjad; Rafiee, Ramin; Ataei, Mohammad; Javadi, Morteza

doi:10.22044/jme.2023.13499.2495

Document Type : Original Research Paper

Authors

Faculty of Mining, Petroleum & Geophysics Engineering, Shahrood University of Technology, Shahrood, Iran.

https://doi.org/10.22044/jme.2023.13499.2495

Abstract

The stability of waste dumps is a significant and at times critical issue in the development of surface mines. Due to insufficient space for waste disposal, environmental concerns, and various other factors, Mine No. 4 at Golgohar Sirjan is not capable of establishing a new waste dump. Given the existing limitations of the mine, the investigation has focused on increasing the dump capacity through the implementation of benches. In this research work, the stability of the waste dump has been investigated using the limit equilibrium method with the Slide3D software, along with a Monte Carlo simulation approach for probabilistic analysis. The results obtained from these methods have been compared with each other. The acceptable safety factor considered for this assessment ranges from 1.15 to 1.2. By adding benches to the eastern waste dump of the mine, a displaced volume equivalent to 36,715.565 cubic meters has been added to the capacity. The constructed model is based on the topography of the area, with dimensions of 1850 meters in length, 1750 meters in width, and 160 meters in height. The results indicate that the safety factor of the waste dump has been calculated as follows using the Spencer, Janbu, and Bishop methods respectively: 1.26, 1.199, and 1.226. Mine No. 4 needs to extract 983.58 million tons of waste to produce 73 million tons of iron ore. In total, by discharging 428 million tons of waste in the northeastern and eastern dumps and adding a bench, a volume of 555.571 million tons of waste is available for disposing of the remaining waste. Considering the remaining waste volume, space must be allocated for waste disposal to Mine No. 4.

Keywords

20.1001.1.22518592.2023.14.4.20.5

Main Subjects

Slope Stability

References

[1]. Igwe, O., & Chukwu, C. (2018). Evaluation of the mechanical properties and critical slope parameters of mine tailings at Enyigba, South eastern, Nigeria. International Journal of Geo-Engineering, 9, 1-25.

[2]. Rosta, M. (2014). Master's thesis: "Determination of Geomechanical Properties and Stability Analysis of the Waste Dump of Iron Ore Mine No. 1, Golgohar Sirjan." Faculty of Mining and Metallurgical Engineering, University of Yazd ( The original reference in Persian)

[3]. Bahramirad, A. (2008). Master's thesis: "Selection of Dam Type and Slope Stability in Waste Dumps: Case Study - Waste Dump Dam No. 1, Golgohar." Faculty of Engineering, Mining Engineering Department, Shahid Bahonar University of Kerman (The original reference in Persian).

[4]. López-Vinielles, J., Fernández-Merodo, J. A., Ezquerro, P., García-Davalillo, J. C., Sarro, R., Reyes-Carmona, C., ... & Herrera, G. (2021). Combining satellite InSAR, slope units and finite element modeling for stability analysis in mining waste disposal areas. Remote Sensing, 13(10), 2008.

[5]. Kainthola, A., Verma, D., Gupte, S. S., & Singh, T. N. (2011). A coal mine dump stability analysis—a case study. Geomaterials, 1(01), 1.

[6]. Adamczyk, J., Cała, M., Flisiak, J., Kolano, M., & Kowalski, M. (2013). Slope stability analysis of waste dump in Sandstone Open Pit Osielec. Studia Geotechnica et Mechanica, 35(1), 3-18.

[7]. Coulibaly, Y., Belem, T., & Cheng, L. (2017). Numerical analysis and geophysical monitoring for stability assessment of the Northwest tailings dam at Westwood Mine. International Journal of Mining Science and Technology, 27(4), 701-710.

[8]. Zou, P., Zhao, X., Meng, Z., Li, A., Liu, Z., & Hu, W. (2018). Sample rocks tests and slope stability analysis of a mine waste dump. Advances in Civil Engineering, 2018, 1-17.

[9]. Shamsuddin Saeed, M., Mohammadi, H., Heydari Rad, A.,and Zare, H. (2020), "Geotechnical design of the tailings hip dump structure of Golghar mine No. 1", the first international conference and the fourth national conference on materials engineering, metallurgy, and mining, Ahvaz ( The original reference in Persian).

[10]. Nguyen, P. M. V., Wrana, A., Rajwa, S., Różański, Z., & Frączek, R. (2022). Slope Stability Numerical Analysis and Landslide Prevention of Coal Mine Waste Dump under the Impact of Rainfall—A Case Study of Janina Mine, Poland. Energies, 15(21), 8311.

[11]. Sarpong, S. O., Olaleye, B. M., Kunkyin-Saadaari, F., & Agyei, G. (2023). Slope stability assessment of some waste rock dumps at a typical gold mine in Ghana. Nigerian Journal of Technology, 42(1), 83-91.

[12]. Vishvakiran, B. (2023) “A study on stability analysis of dumpy slope in Surface coal mines”, Turkish Journal of Computer and Mathematics Education, Vol. 14, No. 01, pp.141-148.

[13]. Iranian Sirjan Steel Company (2016), design and planning of long-term extraction of 4 iron ore mines in Golghar Sirjan ( The original reference in Persian).

[14]. Iranian Sirjan Steel Company (2022) design and planning of the final production of iron ore mine No. 4 Golghar Sirjan (The original reference in Persian).

[15]. Interview with Dr. Peyman Ahmadian, July 2023.

[16]. The program for the preparation of mining standards and criteria - Ministry of Industries and Mines, (2010), Guidelines for stability analysis of slopes in open pit mines, Tehran, Simai Danesh (The original reference in Persian).

[17]. Manafi Qarabai M, Noorzad A, Mahdavifar M (2012) "Risk analysis of soil resistance parameters in the stability of earthen dams", 2nd Iranian dam and tunnel conference, University of Tehran, Iran (The original reference in Persian).

[18]. Johari A, Zarang Thani F, Parvez M (2011), "Reliability analysis of unconfined soil structure without percolation using variable distribution curve combination method", 6th National Congress of Civil Engineering, Semnan University, Semnan ( The original reference in Persian).

[19]. Iranian Sirjan Steel Company (2021) Probabilistic analysis of the stability of the walls of 4 Golghar Sirjan mine by Monte Carlo method (The original reference in Persian).

[20]. Soroush A and Warss Vazirian A (2004), "Using probabilistic methods in slope stability assessment, using a case study", First National Congress of Civil Engineering, Sharif University of Technology, Tehran ( The original reference in Persian).

[21]. Rockscience, (2007) "Slide v.6", User manuals.

[22]. Najafi M and Yarahmadi Bafqi A (2008), "Reliability Analysis of Tailings Dams", Journal of Engineering Geology Association of Iran, Volume 1, Number 3 and 4, Pages 59 to 70 ( The original reference in Persian).

Journal of Mining and Environment

Sustainability Analysis of Waste Dump in Mine No. 4 of Golgohar, Sirjan, for Purpose of Increasing Waste Dump Volume

References

References

Volume 14, Issue 4
October 2023
Pages 1373-1391

Sustainability Analysis of Waste Dump in Mine No. 4 of Golgohar, Sirjan, for Purpose of Increasing Waste Dump Volume

References

References

Volume 14, Issue 4October 2023Pages 1373-1391

Volume 14, Issue 4
October 2023
Pages 1373-1391