DESIGN OF SAFETY FACTORS FOR LANDSLIDE POTENTIAL AND ANDESITE MATERIAL SLOPES GEOMETRY
Abstract
This research was conducted because the material absorption capacity needs to be maximized, so it is necessary to make a mining slope geometry with an optimal safety factor value so that there is no potential for landslides in the research area. The method used is the morgenstern price method, this method was chosen because it has considered the stability of moments and forces.
The actual slope geometry that has not been tested for safety needs to be changed. The physical and mechanical properties data collection is processed to produce a geometric model with a safety factor in accordance with applicable regulations. The actual slope geometry of the Cijurey block is 20m with a slope of 85o, 8m with a slope of 88o, 5m with a slope of 83o and 4m with a slope of 85o with a safety factor value of 1.01. A geometric change was made with a slope height of 6 m and a ladder width of 3m which was made multi-level with an overall angle of 80o having a safety factor of 1.302 which means that it has met the slope safety criteria.
Keywords: safety factor, geometry, slope
Keywords
Full Text:
PDFReferences
L. W. Abramson, T. S. Lee, S. Sharma, and G. M. Boyce, Slope Stability and Stabilization Methods , 2nd ed. (John Wiley & Sons, Inc., Hoboken, NJ, 2002), pp. 1–500.
I. Arif, Geoteknik Tambang (PT Gramedia Pustaka Utama, Jakarta, 2016).
ASTM C33, Standard Specification for Concrete Aggregates , Annual Book of ASTM Standards Vol. 04.02 (ASTM International, Philadelphia, PA, 1995).
ASTM C33, Standard Specification for Aggregates , Annual Book of ASTM Standards (ASTM International, Philadelphia, PA, 1985).
Z. T. Bieniawski, Engineering Rock Mass Classifications (Wiley, New York, NY, 1989).
J. E. Bowles, Sifat Fisis dan Geoteknis Tanah (Erlangga, Jakarta, 1984).
B. H. G. Brady and E. T. Brown, Rock Mechanics for Underground Mining , 3rd ed. (Kluwer Academic Publishers, Dordrecht, 2004).
B. M. Das, Mekanika Tanah (Jilid 1) , translated by Djauhari Noor (Erlangga, Jakarta, 1985).
D. U. Deere and D. W. Deere, “The Rock Quality Designation (RQD) Index in Practice,” in Rock Classification Systems for Engineering Purposes , Special Technical Publication 984, edited by L. Kirkpatrick (American Society for Testing and Materials, Philadelphia, PA, 1988), pp. 113–121.
Drill and Blast Division, PT Gunung Bumi Perkasa, Internal Documentation (2022).
A. C. Effendi, Kusnama, and B. Hermanto, Peta Geologi Lembar Bogor, Jawa, Skala 1:100.000 , 2nd ed. (Pusat Penelitian dan Pengembangan Geologi, Bandung, 1998).
R. Farrand, “Analisis Kestabilan Lereng Pada Desain DISPOSAL Suwota Tahun 2018 di Tambang PT ANTAM TBK UBPN Maluku Utara, Kabupaten Halmahera Timur, Maluku Utara” (Unpublished Undergraduate Thesis, Universitas Pertambangan, 2019).
Feasibility Study Report, PT Gunung Bumi Perkasa (2017).
E. Hoek, “Rock Mass Properties,” Practical Rock Engineering Chapter 11, available at https://www.roscience.com/assets/resources/learning/hoek/Practical-Rock-Engineering-Chapter-11-Rock-Mass-Properties.pdf (accessed February 2024).
W. Hustrulid, M. McCarter, and D. van Zyl, Slope Stability in Surface Mining (Society for Mining, Metallurgy & Exploration, Inc., Littleton, CO, 2000).
A. Imron, “Identifikasi Persebaran Lapisan Batuan Andesit Menggunakan Metode Geolistrik Tahanan Jenis Dan Resistivity Log Pada Desa Malingping Utara, Kecamatan Malingping Utara, Kabupaten Lebak,” unpublished report, available at http://docplayer.info/186391510-Identifikasi-persebaran-lapisan-batuanandesit-menggunak-an-metode-geolistrik-tahanan-jenis-dan-resistivity-log (accessed March 2024).
Ministry of Public Works Indonesia, Peta Zonasi Gempa Indonesia (Ministry of Public Works, Jakarta, 2010).
C. A. Kliche, Rock Slope Stability (Society for Mining, Metallurgy & Exploration, Inc., Littleton, CO, 1999).
Minister of Energy and Mineral Resources Republic of Indonesia, Keputusan Menteri Energi dan Sumber Daya Mineral Republik Indonesia Nomor 1827 K/30/MEM/2018 Tentang Pedoman Pelaksanaan Kaidah Teknik Pertambangan Yang Baik (Jakarta, 2018).
Minister of Energy and Mineral Resources Republic of Indonesia, Peraturan Menteri Energi dan Sumber Daya Mineral Republik Indonesia Nomor 26 Tahun 2018 Tentang Pelaksanaan Kaidah Pertambangan yang Baik dan Pengawasan Pertambangan Mineral dan Batubara (Jakarta, 2018).
DOI: https://doi.org/10.15408/fiziya.v7i2.42160
Refbacks
- There are currently no refbacks.
This work is licensed under a CC-BY-SAÂ