Vol. 8 No. 3 (2026): Ranah Research : Journal Of Multidisciplinary Research and Development

Analisis Balik dan Metode Stabilisasi pada Pemantauan Lereng Menggunakan Slope Stability Radar Tambang Pit 2 Banko Barat PT Bukit Asam Tbk

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Neci Agus Pranteno
Sriwijaya University, South Sumatera, Indonesia
Maulana Yusuf
Sriwijaya University, South Sumatera, Indonesia
Taufik Toha
Sriwijaya University, South Sumatera, Indonesia

Published

May 19, 2026

DOI

https://doi.org/10.38035/rrj.v8i3.2101

Abstract

This study aims to examine the causes of slope instability and to produce a more representative color-zoning threshold-based early warning system on the lowwall slope of Pit 2 Banko Barat. The novelty of this study lies in the preparation of an actual color-zoning threshold developed from specific slope conditions and actual field data, rather than only referring to the general threshold of the ESDM guidelines that use general deformation parameters. This research threshold integrates several key parameters, namely the safety factor (FK), landslide probability, slope deformation from Slope Stability Radar (SSR) monitoring, rainfall, and groundwater level conditions so that it is more sensitive in detecting changes in slope behavior before a landslide occurs. The research method uses a quantitative approach through back analysis by utilizing SSR monitoring data, rainfall, groundwater level, and rock characteristics. The results show that landslides are influenced by the presence of weak layers and slope saturation due to high rainfall of 67.87–189.42 mm. The slope deformation rate reaches 16.3–18 mm/hour which indicates a state of alert to critical. Increased rainfall caused a rise in groundwater levels at the BKGT 105 drilling point to 4.57 m and BKGT 106 to 18.57 m, thereby reducing the shear strength of the rock. The resulting color zoning threshold consists of green zones (<5 mm/day), yellow (5–10 mm/day), orange (≥10 mm/day), and red (>30 mm/day). This system is able to describe the stages of landslide development in more detail and adaptively than general thresholds because it considers the actual geotechnical and hydrogeological conditions of the slope. Mitigation efforts were carried out through slope reshaping, surface water control, and the addition of counterweights at the toe of the slope. The application of color zoning-based thresholds has been proven to improve the accuracy of the early warning system and the effectiveness of landslide mitigation on the lowwall slope of Pit 2 Banko Barat

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How to Cite
Pranteno, N. A., Yusuf, M. and Toha, T. (2026) “Analisis Balik dan Metode Stabilisasi pada Pemantauan Lereng Menggunakan Slope Stability Radar Tambang Pit 2 Banko Barat PT Bukit Asam Tbk”, Ranah Research : Journal of Multidisciplinary Research and Development, 8(3), pp. 1878-1888. doi: 10.38035/rrj.v8i3.2101.

References

Bieniawski, Z.T. (1976). Rock Mechanics Design in Mining and Civil Engineering (5th ed.). London: Pentech Press.
Direktorat Jendral Mineral dan Batubara. (2013). Pedoman Teknik Pemantauan Kestabilan Lereng Timbunan Batuan Penutup. Kemenrian Energi dan Sumber Daya Mineral
Donati, D., Stead, D., Elmo, D., dan Onsel, E. (2020). New Techniques For Chracterising Damage In Rock Slopes: Implications For Engineered Slopes And Open Pit Mines. Proceedings of the 2020 International Symposium On Slope Stability In Open Pit Mining and Civil Engineering . ISBN 978-0-9876389-7-7. Canada: Simon Fraser University.
Gischig, V.S., Eberhardt, E., Moore, J.R, dan Hungr, O. (2015). On The Seismic Response Of Deep-Seated Rock Slope Instabilities-Insights From Numerical Modeling. . Engineering Geology. Vol 193: 1 - 18. Canada: University of British Colombia.
Hamid, N., Hendarmawan, Muslim, D., dan Ruchjana, B.N. (2016). Distribusi Kuat Geser Batuan Pada Formasi Muaraenim Yang Mengandung Batubara Di Kecamatan Merapi Barat, Kabupaten Lahat, Provinsi Sumatera Selatan.. Buletin Sumber Daya Geologi. Vol 11 (3): 200-213. Sumedang: Universitas Padjajaran.
Head, K.H. (1982). Manual Of Soil Laboratory Testing. London: Pentech Press.
Idham, M. A. (2017). Analisis Karakteristik dan Penentuan Ambang Batas Alarm Velocity dan Inverse-Velocity Berdasarkan Jenis Batuan dan Struktur Geologi pada Data Slope Stability Radar. (Tesis Master, Universitas Pembangunan Nasional Veteran).
Iman, I.J.S., Firdaus, Mili, M.Z., dan Wahab. (2022). Kajian Geoteknik Untuk Perencanaan Geometri Lereng Pit Tambang Nikel Menggunakan Metode Bishop Simplified Pada PT. Riota Jaya Lestari. Jurnal Riset Teknologi Pertambangan (J-Ristam). Vol2 (2): 200-213. ISSN 2621-3869. Kendari: Universitas Halu Oleo.
Indriastuty, D., Fajar, F., Tappang, G., dan Irsyad, A. (2021). Pemantauan Deformasi Lereng Tambang Terbuka Paska Peledakan Dengan Slope Stability Radar. Indonesian Mining Professional Journal. Vol 3(2): 71 - 82. Jakarta: Perhimpunan Ahli Pertambangan Indonesia.
Karaman, K., Cihangir, F., Ercikdi, B., Kesimal, A., dan Demirel, S. (2015). Utilization Of The Brazilian Test For Estimating The Uniaxial Compressive Strength And Shear Strength Parameters. The Journal Of The Southern Institute Of Mining and Metallurgy. Vol 115: 185-192. Turkiye: Karadeniz Technical University
Luqman, F., Haryanto, I., Firmansyah, Y., Gani, R.M.G., dan Indriyanto, Y. (2018). Tektonostratigrafi Berdasarkan Analisis Seismik 2D Pada Sub Cekungan Jambi, Cekungan Sumatera Selatan. Padjadjaran Geoscience Journal. Vol 3(1): 18-28. ISSN 2579-4033. Sumedang: Universitas Padjajaran.
Ma’rief, A.A., dkk. (2022). Analisis Stabilisasi Lereng Tambang Batubara Dengan Menggunakan Metode Limit Equilibrum Pada PT. Kalimantan Prima Nusantara. Jurnal Ceocelebes. Vol 6(2): 117-125. ISSN 2579-5821. Makassar:Universitas Hasanuddin.
Mercer, K, G. (2006). Investigation into The Time Dependent Deformation Behaviour and Failure Mechanisms of Unsupported Rock Slopes Based on The Interpretation of Observed Deformation Behaviour. South Africa: University of The Witwatersand Johannesburg
Ramadhan, M.A., Anggraeny, F.T., dan Putra, C.A. (2024). Klasifikasi Curah Hujan Menggunakan Metode K-Nearest Neighbor. Jurnal Mahasiswa Teknik Informatika. Vol 8 (3): 3863-3869 Surabaya: Universitas Nasional “Veteran” Jawa Timur.
Stead, D., dan Wolter, A. (2015). A Critical Review Of Rock Slope Failure Mechanics: The Importance Of Structural Geology. Journal of Structural Geology. Vol 74: 1 - 23. Canada: Simon Fraser University.
Wardana, N.K., Ipmawati, M.R., dan Pratiwi, N. (2020). Analisis Rekah Tarik Lereng Sidewall Penambangan Blok Menyango Berdasarkan Realibilitas Kemantapan Lereng Menggunakan Metode Finite Difference. Mining Journal Exploration, Exploitation Georesource Processing and Mine Enviromental. Vol 8(2):72-79. Yogyakarta: Institut Nasional Teknologi Yogyakarta.
Zhao, L., Liu, X., Zang, X., dan Zhao, H. (2022). Back Analysis Of Geotechnical Engineering Based On Data-Driven Model And Grey Wolf Optimization. Applied Science. Vol 12: 1 - 19. China: Shandong University of Technology