Analysis Slope Stability Using RMR and SMR Method in Nupaomba Area Tanantovea Donggala

Djamal Adi Nugroho Uno, Irianto Uno, Apriadi Saputra, Deno Ambar Arum, Riqa Permatasyara Mumin, Moh Rizky Fadel Alfaed

Abstract


Landslide disasters frequently occur in the Nupabomba area due to its steep slopes and its role as a primary access road for the local community. This study aims to analyze slope stability using the Rock Mass Rating (RMR) and Slope Mass Rating (SMR) methods to assess the potential for landslides. The research was conducted at coordinates (Universal Transverse Mercator) UTM 829117.90 – 831853.89 mE and 9920980.82 – 9920308.34 mS. Data collection involved field measurements using the scanline method, focusing on discontinuities, lithology, and rock strength. The results indicate that at Station 01, the slope consists of slate rock with an RQD value of 70% and UCS of 23 MPa. The calculated RMR value is 58, placing it into Class III (fair rock), with an SMR value of 55.4, indicating partially stable conditions. Meanwhile, at Station 02, the slope consists of phyllite rock with an RQD value of 70% and UCS of 52 MPa. The RMR value is 62, classifying it as Class II (good rock), and the SMR value is 61.6, indicating a stable condition. These findings provide crucial insights into the geotechnical characteristics of the area, which are essential for landslide risk mitigation and infrastructure planning. The study highlights the need for continuous monitoring and possible reinforcement strategies, particularly in areas categorized as partially stable. Further research incorporating geotechnical modeling and additional stability analysis is recommended to enhance slope stability predictions and inform mitigation strategies.

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References


ASTM. Standars Test Method for Elastic Moduli of Intac Rock Core Speciments in Uniaxial Compression. Designation : D 3148-02.

Barton O, Akagi. And T, Kawamoto, T .,1993. The Squezing Potential of Rocks Around Tunnels, Theory and prediction. Rock Mechanics and Rock Engineering, v. 26, issue 2,p. 137-163

Bickel, John., Kuesel, T., and King, E.H., “Tunnel Engineering Handbookâ€, Chapman & Hall,Dep. BC., 2nd edition, New York, 1996. 119 p

Bieniawski, Z. T. 1976 Rock Mass Classification in Rock Engineering. Exploration for Rock Engineering, Proc. of the Symp. (Edited by Bieniawski, Z. T.), Vol. 1, page. 97-106. Balkema, Cape Town.

Bieniawski, Z. T. 1989. Engineering Rock Mass Classifications. New York : John Wiley & Sons. Brady, B. G. H dan Brown, E. T. 1985. Rock Mechanics for Underground Mining. George Allen & Unwin

Bieniawski, Z. T ., 1989, Engineering Rock Mass Classification : A Complete Manual for Engineers and Geologist in Mining, Civil, and Petroleum Engineering. New York, Willey, xii, 251 p

Bieniawski, Z. T ., 1979. The Geomechanics Classification in Rock Engineering Applications. Procedings of the Internasional Congress on Rock Mechanics, 41-48 p.

Jaeger, J.C., & Cook, N.G.W. (1979). Fundamentals of Rock Mechanics. 2nd edition. Chapman & Hall.

Deere, D. U., & Miller, R. P. (1966). Engineering classification and index properties of rock. Technical Report No. AFWL-TR-65-116, Air Force Weapons Laboratory, Kirtland Air Force Base, New Mexico

Romana, M. (1985). Slope Mass Rating (SMR): A classification for slopes. Dalam C. P. Bieniawski (Ed.), Advances in Rock Mechanics (hlm. 345-354). Rotterdam: A.A. Balkema.

Pangaribuan, M. P., & Retongga, N. (2022). Analisis Kestabilan Lereng Menggunakan Metode Rock Mass Rating (RMR) dan Slope Mass Rating (SMR) untuk Menentukan Faktor Keamanan Lereng Pada Tambang Tuf Desa Candirejo, Kecamatan Semin, Kabupaten Gunungkidul, Daerah Istimewa Yogyakarta.

Sitompul, P. E. L., Purwoko, B., & Syafrianto, M. K. (2022). Analisis Kestabilan Lereng Menggunakan Metode Slope Mass Rating di Bukit Peniraman.

Sukur, A., & Candra, A. (2019). Kestabilan Lereng Tambang Berdasarkan RMR, SMR, dan Kinematika Keruntuhan di Daerah Soreang dan Sekitarnya, Kabupaten Bandung Jawa Barat. Jurnal Geosaintek, 5(2), 76-83.

Swana, G. W., Muslim, D., & Sophian, I. (2012). Desain Lereng Final dengan Metode RMR, SMR dan Analisis Kestabilan Lereng: Pada Tambang Batubara Terbuka, di Kabupaten Tanah Laut, Provinsi Kalimantan Selatan. Vol 7.

Syam, M. A., Heryanto, Trides, T., Pasiakan, L. P., & Amalia, D. (2018). Analisis Kestabilan Lereng Berdasarkan Nilai Slope Mass Rating di Desa Sukamaju, Tenggarong Seberang, Kutai Kartanegara, Kalimantan Timur. Jurnal Geocelebes, 2(2), 53-63.




DOI: https://doi.org/10.37905/jgeosrev.v7i1.30388

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