Email the author 
Analisis Kestabilan Lereng Pada Relokasi Jalan di Bendungan Bulango Ulu, Kabupaten Bone Bolango, Provinsi Gorontalo
Abstract
This study aims to evaluate slope stability along the relocated road section of Bulango Ulu Dam, Bone Bolango Regency, Gorontalo Province. The research focuses on geological conditions, rock mass quality, and slope stability using Rock Mass Rating (RMR) and Slope Mass Rating (SMR) methods based on scanline mapping data. Field investigations were conducted on four slope segments (AP1–AP4) by measuring discontinuity characteristics, rock strength, spacing, and groundwater conditions.
The results indicate that the rock mass quality of all slope segments falls into Class I–II of the RMR system, categorized as very good to good rock, with RMR values ranging from 70 to 83. SMR analysis shows that all slope segments belong to Class II, indicating stable slope conditions. Kinematic analysis reveals that the dominant potential failure mechanism is toppling failure, with probability of failure values ranging from 10.00% to 23.97%.
Although the slopes are classified as stable, the presence of geological structures, particularly discontinuities, contributes to potential instability under certain conditions. Continuous monitoring is therefore recommended to mitigate future landslide risks. The findings provide important insights for slope stability evaluation and infrastructure safety planning in mountainous regions.
Keywords
Full Text:
PDFReferences
Bieniawski, Z. T. (1989). Engineering rock mass classifications. New York, NY: John Wiley & Sons.
Bieniawski, Z. T., (1973), Engineering Classification of Jointed Rock Masses. Trans. S. Afr, Inst. Civ. Engrs.
Bieniawski, Z. T., (1976), Rock Mass Classification in Rock Engineering. Proc. Symp on Exploration, Johannesburg.
Bieniawski, Z.T., (1984). Rock Mechanics Design in Mining and Tunneling. A. A. Balkema, Roterdam.
Das, D. M., Singh, R., Kumar, A., Mailapalli, D. R., Mishra, A., & Chatterjee, C. (2016). A multi-model ensemble approach for stream flow simulation. In B.
Panigrahi & M. R. Goyal (Eds.), Modeling methods and practices in soil and water engineering (pp. 72–102). Boca Raton, FL: CRC Press.
Das, B. M., Shukla, S. K., dan Sivakugan, N. (2012). Rock Mechanics An Introduction. CRC Press Taylor & Francis Group. New York.
Fu, Z. Y., Chen, H. S., Zhang, W., Xu, Q. X., Wang, S., & Wang, K. L. (2015). Subsurface flow in a soil-mantled subtropical dolomite karst slope: A field rainfall simulation study. Geomorphology, 250, 1–14. https://doi.org/10.1016/j.geomorph.2015.08.012
Guntur, P., dan Tanauma, A. (2015). Analisis Resiko Gempa Bumi Lengan Utara Sulawesi Menggunakan Data Resolusi Tinggi Sebagai Upaya Mitigasi Bencana. Jurnal Spektral 6 (3): 6- 10.
Hoek, E., & Bray, J. (1981). Rock slope engineering (3rd ed.). London, UK: Institution of Mining and Metallurgy.
Holden, J. (2017). An introduction to physical geography and the environment (4th ed.). England: Pearson.
International Society for Rock Mechanics (ISRM). (2007). The complete ISRM suggested methods for rock characterization, testing and monitoring.
International Journal of Rock Mechanics and Mining Sciences, 44(1), 1–40.
Muarif, F. I., Maryati, S., & Hutagalung, R. (2022). Analisis Kelas Massa Batuan Terhadap Kestabilan Lereng Bendungan Lolak Menggunakan Metode Rock Mass Rating. Journal of Applied Geoscience and Engineering, 1(2), 61-75.
Palmström, A. (2005). Measurements of and correlations between block size and rock quality designation (RQD). Tunnelling and Underground Space Technology, 20(4), 362–377. https://doi.org/10.1016/j.tust.2005.01.004
Priest, S. D. (1993). Discontinuity analysis for rock engineering. London, UK: Chapman & Hall.
Romana, M. (1985). New adjustment ratings for application of Bieniawski classification to slopes. In Proceedings of the International Symposium on the Role of Rock Mechanics (pp. 49–53).
Romana, M., Serón, J. B., & Montalar, E. (2003). SMR geomechanics classification: Application, experience and validation. Engineering Geology, 66(1–2), 51–65. https://doi.org/10.1016/S0013-7952(02)00106-3
Romana, M. R. (1993). A geomechanical classification for slopes: slope mass rating. In Rock testing and site characterization (pp. 575-600). Pergamon.
United States Geological Survey. (2018, October 15). Science application for risk reduction. Retrieved from https://www.usgs.gov/natural-hazards/science-application-risk-reduction
Varikoden, H., Revadekar, J. V., Choudhary, Y., & Preethi, B. (2015). Droughts of Indian summer monsoon associated with El Niño and non-El Niño years. International Journal of Climatology, 35, 1916–1925. https://doi.org/10.1002/joc.4097
Wyllie, D. C., & Mah, C. W. (2004). Rock slope engineering: Civil and mining. London, UK: Spon Press.
Zakaria, Z. (2005). Peran Geologi Teknik dan Analisis Kewilayahan dalam Geologi Militer di Indonesia. Bulletin of Scientific Contribution: GEOLOGY, 3(2).
DOI: https://doi.org/10.37905/jage.v5i1.38921
Refbacks
- There are currently no refbacks.
Copyright (c) 2026 Alya Rahmawati Panai, Muh Kasim, Ronal Hutagalung
This work is licensed under a Creative Commons Attribution 4.0 International License.
Journal of Applied Geoscience and Engineering (P-ISSN: 2964-478X, E-ISSN: 2964-4534) is licensed under a Creative Commons Attribution 4.0 International License.