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Integrated Slope Safety Factor Analysis Using Geotechnical Bishop Method and Resistivity Method for Calculating Landslides Probabilities in Imogiri area, Special Region of Yogyakarta
Abstract
Landslides potential analysis is very serious issue in disaster mitigation processes. The risk of landslide potential in a slope can be assessed through the calculation of Slope Safety Factors, involving data on soil physical properties, soil mechanics (geotechnical properties), and slope geometry. Research was conducted using a combination of resistivity and Bishop geotechnical methods. The geoelectric method was employed to determine the lithology of landslide materials and the geometry of the sliding plane. The Bishop geotechnical method was used to calculate the slope safety factor based on geoelectric data, soil mechanics data, and rock mechanics data obtained in the study area. A total of 2 geoelectric measurement profiles, each 120-150 meters long, were taken in the Imogiri region of Yogyakarta. The research results indicate that the sliding plane is located at a depth of 10 meters with clay lithology. The calculated slope safety factor using the Bishop method was performed under two conditions: saturated and unsaturated. The saturated slope safety factor has a low value, less than 1.07, while the unsaturated condition yields a higher value, greater than 1.25.
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P. Arrogante-Funes, A. G. Bruzón, F. Arrogante-Funes, R. N. Ramos-Bernal, and R. Vázquez-Jiménez, “Integration of vulnerability and hazard factors for landslide risk assessment,” Int J Environ Res Public Health, vol. 18, no. 22, Nov. 2021, doi: 10.3390/ijerph182211987.
Z. Zakaria, I. Sophian, Z. S. Sabila, and L. H. Jihadi, “Slope Safety Factor and Its Relationship with Angle of Slope Gradient to Support Landslide Mitigation at Jatinangor Education Area, Sumedang, West Java, Indonesia,” in IOP Conference Series: Earth and Environmental Science, Institute of Physics Publishing, May 2018. doi: 10.1088/1755-1315/145/1/012052.
S. Xiao, W. Dong Guo, and J. Zeng, “Factor of Safety of Slope Stability from Deformation Energy.” [Online]. Available: www.nrcresearchpress.com
S. N. Nasution, S. Rachman, and H. Pramudito, “Slope stability analysis using bishop method and kinematic analysis,” IOP Conf Ser Mater Sci Eng, vol. 1098, no. 6, p. 062041, Mar. 2021, doi: 10.1088/1757-899x/1098/6/062041.
C. Prasetyadi et al., “Conservation of groundwater in Nglanggran Area, Gunung Kidul District, Yogyakarta,” in IOP Conference Series: Earth and Environmental Science, Institute of Physics Publishing, Dec. 2018. doi: 10.1088/1755-1315/212/1/012007.
R. W. Van Bemmelen, The Geology of Indonesia, vol. IA. The Hague: U.S. Goverment Printing Office, 1949.
Surono, “Litostratigrafi Pegunungan Selatan Bagian Timur Daerah Istimewa Yogyakarta Dan Jawa Tengah,” Jurnal Geologi dan Sumberdaya Mineral, vol. 19, no. 3, pp. 209–221, 2009.
L. P. Negara, D. Lestari, F. A. Kurnianto, F. A. Ikhsan, B. Apriyanto, and E. A. Nurdin, “An overview of depositional environment between the mountains of southern java and the fold mountain of north java,” in IOP Conference Series: Earth and Environmental Science, IOP Publishing Ltd, Mar. 2021. doi: 10.1088/1755-1315/683/1/012005.
B. Prastisho, P. Pratiknyo, A. Rodhi, and C. Prasetyadi, “03. Prociding SCIENE & TECHNOLOGY LPPM 2017 (1),” in Prociding Science & Technlogy LPPM, 2017, pp. 31–36.
T. R. Rahmani, D. P. Sari, A. Akmam, H. Amir, and A. Putra, “Using the Schlumberger configuration resistivity geoelectric method to analyze the characteristics of slip surface at Solok,” in Journal of Physics: Conference Series, Institute of Physics Publishing, May 2020. doi: 10.1088/1742-6596/1481/1/012030.
A. Octova, A. S. Muji, M. Raeis, and R. R. Putra, “Identification of aquifer using geoelectrical resistivity method with schlumberger array in Koto Panjang Area, Nagari Tigo Jangko, Lintau Buo Sub-District, Tanah Datar Regency,” in Journal of Physics: Conference Series, Institute of Physics Publishing, May 2019. doi: 10.1088/1742-6596/1185/1/012009.
Y. Yatini and I. Suyanto, “Identification of slip surface based on geoelectrical dipole-dipole in the landslides hazardous area of Gedangsari District, Gunungkidul Regency, Province of Daerah Istimewa Yogyakarta, Indonesia,” in IOP Conference Series: Earth and Environmental Science, Institute of Physics Publishing, Dec. 2018. doi: 10.1088/1755-1315/212/1/012013.
E. Rolia and D. Sutjiningsih, “Application of geoelectric method for groundwater exploration from surface (A literature study),” in AIP Conference Proceedings, American Institute of Physics Inc., Jun. 2018. doi: 10.1063/1.5042874.
O. R. Hermawan and D. P. Eka Putra, “The Effectiveness of Wenner-Schlumberger and Dipole-dipole Array of 2D Geoelectrical Survey to Detect The Occurring of Groundwater in the Gunung Kidul Karst Aquifer System, Yogyakarta, Indonesia,” Journal of Applied Geology, vol. 1, no. 2, p. 71, Jul. 2016, doi: 10.22146/jag.26963.
W. M. Telford, L. P. Geldart, and R. E. Sheriff, Applied Geophysics, Second. Cambridge: Cambridge University Press, 1990.
A. W. Bishop, “First Technical Session : General Theory oj Stability of Slopes THE USE OF THE SLIP CIRCLE IN THE STABILITY ANALYSIS OF SLOPES,” 1954.
T. Zhang, Q. Cai, L. Han, J. Shu, and W. Zhou, “3D stability analysis method of concave slope based on the Bishop method,” Int J Min Sci Technol, vol. 27, no. 2, pp. 365–370, Mar. 2017, doi: 10.1016/j.ijmst.2017.01.020.
K. J. Agbelele, G. O. Adeoti, D. Y. Agossou, and G. G. Aïsse, “Study of Slope Stability Using the Bishop Slice Method: An Approach Combining Analytical and Numerical Analyses,” Open Journal of Applied Sciences, vol. 13, no. 08, pp. 1446–1456, 2023, doi: 10.4236/ojapps.2023.138115.
K. Gelisli, T. Kaya, and A. E. Babacan, “Assessing the factor of safety using an artificial neural network: case studies on landslides in Giresun, Turkey,” Environ Earth Sci, vol. 73, no. 12, pp. 8639–8646, Jun. 2015, doi: 10.1007/s12665-015-4027-1.
L. Li and X. Chu, “Failure Mechanism and Factor of Safety for Spatially Variable Undrained Soil Slope,” Advances in Civil Engineering, vol. 2019, 2019, doi: 10.1155/2019/8575439.
S. Mulyaningsih, M. Muchlis, N. W. A. A. T. Heriyadi, and D. Kiswiranti, “Volcanism in The Pre-Semilir Formation at Giriloyo Region; Allegedly as Source of Kebo-Butak Formation in the Western Southern Mountains,” Journal of Geoscience, Engineering, Environment, and Technology, vol. 4, no. 3, p. 217, Sep. 2019, doi: 10.25299/jgeet.2019.4.3.2262.
J. Castro, M. P. Asta, J. P. Galve, and J. M. Azañón, “Formation of clay-rich layers at the slip surface of slope instabilities: The role of groundwater,” Water (Switzerland), vol. 12, no. 9, Sep. 2020, doi: 10.3390/w12092639.
R. Rekzyanti, S. Balamba, and L. Manaroinsong, “ANALISA KESTABILAN LERENG AKIBAT GEMPA (STUDI KASUS : IAIN MANADO),” vol. 14, no. 66, 2016.
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