Impact Of Open-pit Mining Expansion on Slope Stability at Pt. Hikari Jeindo, Langgikima, North Konawe, Indonesia | ||
| Journal of Mining and Environment | ||
| مقاله 8، دوره 15، شماره 3، مرداد 2024، صفحه 943-959 اصل مقاله (7.19 M) | ||
| نوع مقاله: Case Study | ||
| شناسه دیجیتال (DOI): 10.22044/jme.2024.13924.2595 | ||
| نویسندگان | ||
| Sahrul Poalahi Salu* ؛ Bima Bima | ||
| School of Mining Engineering, Faculty of Science and Engineering, Universitas Sembilanbelas November Kolaka, Indonesia | ||
| چکیده | ||
| Expansion of mining pit is associated with an increased risk of slope instability and high costs. This is because changes in geometry of the mine slope significantly affect slope stability, alter the stripping ratio, and potentially threaten the continuity of mining operations. Therefore, this research work aimed to investigate the impact of changes in geometry of mining pit on slope stability to provide insight into safety, economic assurances, and ensure the sustainability of mining operations. This research work was applied by the 2D numerical modeling method using the Slide Software V. 6.0 Rocscience to analyze geometry of mining pit and impact on slope safety factors. The investigation was conducted at Pit Block A of Pt. Hikari Jeindo, managing nickel mining activities in the Langgikima District, North Konawe, Regency, Southeast Sulawesi Province, Indonesia. The results showed that the modeling method successfully showed changes in slope geometry, ensuring safe and economically viable slope safety factors. However, to obtain a more comprehensive understanding of slope stability conditions, a 3D numerical modeling method is required to capture the area affected by expansion of mining pit. | ||
| کلیدواژهها | ||
| Slope stability؛ stripping ratio؛ construction and pit | ||
| مراجع | ||
|
[1]. Abdulai, M., & Sharifzadeh, M. (2021). Probability methods for stability design of open pit rock slopes: an overview. Geosciences, 11(8), 319.
[2]. Albar MR. (2021). Relationship between Changes in Safety Factors and Acquisition of Removal Ratio in Coal Mines. Padjajaran Journal Geosciences, 5(1).
[3]. Alikhani, A., Taheri Moghadder, M., and Mohammadi, H. (2020). Investigation of Bishop’s and Janbu’s Models Capabilities on Slope Stability Problems with Special Consideration to Open-Pit Mining Operations. Journal of Mining and Environment, 11(1), 161-170.
[4]. Arif, Irwandy. (2016). Geotechnical engineering in mining. Pt. Gramedia pustaka utama. Jakarta.
[5]. Azizi MA. (2018). Influence of Slope Geometry on Coal Recovery Mined at Pt. Arutmin Indonesia Kintap Site, South Kalimantan. University of Trisakti.
[6]. Bowles, J.E. (1989), Physics and Mechanics of Soil. Pt. Erlangga. Jakarta.
[7]. Das, Braja M. (2006). Principles of Geotechnical Engineering. Sixth Edition. Thomson.
[8]. Fleurisson, J. A. (2012). Slope design and implementation in open pit mines: geological and geomechanical approach. Procedia Engineering, 46, 27-38.
[9]. The Ministry of Energy and Mineral Resources. (2018). Ministerial Decree No. 1827 K/30/MEM/2018 regarding Guidelines for Good Mining Practices. Ministry of Energy and Mineral Resources. Jakarta.
[10]. Nugroho, Dugie. Gentri. (2017). Rocscience Geotechnical Tutorial Slides. Engineering.
[11]. Putrilia, B., Poalahi, S., Rembah, R., dan Munir, A. S. (2022). Analisis Kestabilan Lereng pada Pit Bengkirai Tambang Terbuka Batubara di Pt. Guruh Putra Bersama Site Gunung Sari Kecamatan Tabang Kabupaten Kutai Kartanegara Kalimantan Timur. Jurnal Geomine, 10(2), 156-167.
[12]. Sarfaraz, H., Khosravi, M. H., and Pipatpongsa, T. (2021). Numerical Stability Analysis of Undercut Slopes Evaluated by Response Surface Methodology. Journal of Mining and Environment, 12(1), 31-43.
[13]. Slide 2 & RS2: The Ultimate Slope Stability Analysis Verification Tool. (2022). https://www.rocscience.com/software/slide2#resources Published on: July. 14, Updated on: Nov. 09.
[12]. Walia, A., and Roy, A. K. (2022). Assessment of Slope Stability and Its Remedies in Palampur, Himachal Pradesh. Journal of Mining and Environment, 13(3), 767-780.
[15]. Kang, J., Wan, D., Sheng, Q., Fu, X., Pang, X., Xia, L., and Li, D. (2022). Risk assessment and support design optimization of a high slope in an open pit mine using the jointed finite element method and discontinuous deformation analysis. Bulletin of Engineering Geology and the Environment, 81(6), 254.
[16]. Waterman, S. (2018). Mining Planning, Eighth Edition. Yogyakarta.
[17]. Wesley L. D. (2012). Soil Mechanics for Sediment and Residual Soils. Yogyakarta; ISBN: 978-979-29-2633.
[18]. Wibowo, W., dan Nurhakim, N. (2022). Kajian Teknis Design Life of Mine (LOM) Tambang dengan Potensi Kerjasama Sharing Wall Project Melalui Pendekatan Analisis Kestabilan Lereng. Jurnal Teknologi Berkelanjutan, 11(01), 7-20.
[19]. Zebarjadi Dana, H., Khaloo Kakaie, R., Rafiee, R., and Yarahmadi Bafghi, A. R. (2018). Effects of geometrical and geomechanical properties on slope stability of open-pit mines using 2D and 3D finite difference methods. Journal of Mining and Environment, 9(4), 941-957.
[20]. Chand, K., and Koner, R. (2023). Internal Mine Dump Slope Stability and Failure Zone Identification using 3D modeling. Journal of Mining and Environment, 14(4), 1105-1119.
[21]. Goshtasbi, K., Ataei, M., and 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(10), 651-656.
[22]. Wang, G., Zhao, B., Wu, B., Zhang, C., and Liu, W. (2023). Intelligent prediction of slope stability based on visual exploratory data analysis of 77 in situ cases. International Journal of Mining Science and Technology, 33(1), 47-59.
[23]. Khosravi, M. H., Sarfaraz, H., Esmailvandi, M., and Pipatpongsa, T. (2017). A numerical analysis of the performance of counterweight balance on the stability of undercut slopes. International Journal of Mining and Geo-Engineering, 51(1), 63-69.
[24]. Sarfaraz, H., Bahrami, A. R., and Samani, R. (2022). Numerical modelling of slide-head-toppling failure using FEM and DEM methods. Journal of Mining and Environment, 13(1), 269-280.
[25]. Hussain, S., Rehman, Z. U., Khan, N. M., Ahmad, I., Raza, S., Tahir, M., and Sherin, S. (2021). Proposing a Viable Stabilization Method for Slope in a Weak Rock Mass Environment using Numerical Modelling: a Case Study from Cut Slopes. Journal of Mining and Environment, 12(4), 929-940. | ||
|
آمار تعداد مشاهده مقاله: 281 تعداد دریافت فایل اصل مقاله: 559 |
||