PEMODELAN FAKTOR KEAMANAN LERENG BERBASIS CURAH HUJAN DAN KEMIRINGAN LERENG DI KECAMATAN SUMEDANG SELATAN
DOI:
https://doi.org/10.20961/ijed.v4i2.2473Keywords:
Disaster Mitigation; Landslide; Rainfall; Slope Safety Factor; Slope InclinationAbstract
MODELING OF SLOPE SAFETY FACTORS BASED ON RAINFALL AND SLOPE SIDE IN SOUTH SUMEDANG DISTRICT
Sumedang Selatan Subdistrict is one of the subdistricts in Sumedang Regency, West Java, which has had many landslide incidents. This is the main reason for the need for landslide disaster mitigation. The first step in landslide disaster mitigation is mathematical modeling as an early warning system. This study aims to model the mathematical equation for the slope safety factor (FK) in Sumedang Selatan Subdistrict based on rainfall data and slope inclination. The mathematical equation used is the Bowles 1996 slope safety factor (FK) equation. The data used are daily rainfall data from 2024 and slope inclination data (DEMNAS) from 2021. The results obtained are graphs of rainfall (P) and slope inclination (θ) against the slope safety factor (FK). The critical point was identified at a daily rainfall of 110 mm and a slope inclination 35°. Rainfall and slope inclination have a negative correlation with the slope safety factor.
References
Ahmid, D. A., Wahyudi, T., Kusnawan, K., Cahyono, S. S., Gunawan, G., Zulfahmi, Z., Supriyanto, B. A., Tarsono, T., & Setiawan, L. (2023). Landslide Potential in Cihanjuang, Cimanggung, Sumedang, West Java Province. Riset Geologi dan Pertambangan, 33(2), 89–97.
Aisah, E., & Gofar, N. (2022). Studi Pengaruh Curah Hujan Terhadap Stabilitas Lereng Menggunakan Program Perisi. Jurnal Rekayasa Sipil, 18(2), 133–147.
Arsyad, M. (2017). Modul Manajemen Penanggulangan Bencana Pelatihan Penanggulangan Bencana Banjir. Pusat Pendidikan Dan Pelatihan Sumber Daya Air Dan Kontruksi, 77.
Bowles, J. E. (1996). Foundation Analysis and Design. In Civil Engineering Materials.
BPS Kabupaten Sumedang. (2024). Pengamatan Unsur Iklim 2021. https://sumedangkab.bps.go.id/id/statistics-table?subject=539
BPS Sumedang. (2024). Sumedang dalam Angka 2024. In Badan Pusat Statistik (Vol. 11, Nomor 1). http://scioteca.caf.com/bitstream/handle/123456789/1091/RED2017-Eng-8ene.pdf?sequence=12&isAllowed=y%0Ahttp://dx.doi.org/10.1016/j.regsciurbeco.2008.06.005%0Ahttps://www.researchgate.net/publication/305320484_SISTEM_PEMBETUNGAN_TERPUSAT_STRATEGI_MELESTARI
Byron, | E, & Nelson, P. (2023). Probabilistic Modeling of Landslide Hazards to Improve the Resilience of Transportation Infrastructure. 500(July), 1–70.
Crosta, G. B., Imposimato, S., & Roddeman, D. G. (2022). Numerical modelling of large landslides stability and runout. Natural Hazards and Earth System Science, 3(6), 523–538. https://doi.org/10.5194/nhess-3-523-2003
Day, R. W. (1992). Effective cohesion for compacted clay. Journal of geotechnical engineering, 118(4), 611–619.
Ekawati, R., Wahda, S. K., & Adi, N. P. (2024). Mekanisme Terjadinya Tanah Longsor Desa Tieng Kejajar Analisis Interaksi Gaya Gravitasi dan Kestabilan Lereng. Lamda: Jurnal Ilmiah Pendidikan MIPA dan Aplikasinya, 4(3), 202–210.
Fadillah, R., Tjahjono, B., & Dwiyanti, F. G. (2024). Landslide Hazard Analysis Based on Geographic Information Systems in Sumedang Regency. Jurnal Penelitian Pendidikan IPA, 10(SpecialIssue), 147–158.
Firdaus, K. (2021). Model Matematika untuk Mengkaji Tsunami oleh Longsoran.
Gudehus, G. (2021). Implications of the principle of effective stress. Acta Geotechnica, 16(6), 1939–1947.
Hutomo, I. A., & Maryono, M. (2016). Model Prediksi Kawasan Rawan Bencana Tanah Longsor di Kecamatan Karangkobar. Jurnal Pembangunan Wilayah & Kota, 12(3), 303. https://doi.org/10.14710/pwk.v12i3.12905
Ihsan, H. M., & Isya, H. R. M. (2024). Utilization of Sentinel-1 for Landslide Hazard Zoning on Agricultural Land Cover in Sumedang Regency. E3S Web of Conferences, 600, 2003.
Kottama, G. W., Candra, A. I., Rivianto, A., Rohman, M. R. F., Budiawan, M., Taufani, M. S., & Prasetyo, M. W. (2023). Optimasi Geometri Lereng dengan Evaluasi Nilai Faktor Keamanan Menggunakan Software Geostudio. Jurnal Manajemen Teknologi dan Teknik Sipil, 6(2).
Kumar, G. P., Das, A., Rai, R., & Jaiswal, A. (2015). Slope Stability Analysis Using Radial Slices: A Mathematical Model. Journal of The Institution of Engineers (India): Series D, 96(2), 189–193. https://doi.org/10.1007/s40033-015-0065-9
Labuz, J. F., & Zang, A. (2014). Mohr–Coulomb failure criterion. In The ISRM Suggested Methods for Rock Characterization, Testing and Monitoring: 2007-2014 (hal. 227–231). Springer.
Larasati, F., Suci Richasari, D., & Mu, A. (2021). Pemodelan Regresi Double Log dan Semi Log Untuk Nilai Tanah di Daerah Rawan Tanah Longsor (Studi Kasus: Kecamatan Songgon, Kabupaten Banyuwangi). Prosiding FIT ISI, 1, 145–152. https://proceedings.undip.ac.id/index.php/isiundip2021/article/view/633
Oktaviani, I., Ngirtjuk, N., Sampurna, H., & Putra, J. (2024). KAJIAN PENGARUH PENAMBAHAN NANO SiO2 PADA NILAI KOHESI DAN SUDUT GESER DALAM TANAH LEMPUNG EKSPANSIF KARAWANG. Jurnal Sains dan Teknologi ISTP, 21(01), 23–28.
Prasetyo, M. A., Zakaria, Z., & Sophian, R. I. (2020). Hubungan Tinggi dan Sudut Lereng Terhadap Potensi Longsor Yang Diindikasikan Oleh Faktor Keamanan pada Lereng Tunggal. Geoscience Journal, 4(3), 238–242.
Prawiradisastra, F., Shomim, A. F., Trisnafiah, S., Khaerani, P., Tejakusuma, I. G., & Zakaria, Z. (2023). Forensic assessment of landslides induced by environmental changes in Sumedang, Indonesia, an important step for the future disaster prevention. IOP Conference Series: Earth and Environmental Science, 1201(1), 12065.
Rabani, I. R. (2023). Analisis Perbandingan Kestabilan Lereng Jenuh dan Lereng Tidak Jenuh yang Dipengaruhi Infiltrasi Hujan= Comparative Analysis of Saturated and Unsaturated Slopes Stabilities Affected by Rainfall Infiltration. Universitas Hasanuddin.
Santo Frans, J., & Nurfalaq, M. H. (2019). Studi Geoteknik Pengaruh Muka Air Tanah Terhadap Kestabilan Lereng Tambang Batubara. Prosiding Temu Profesi Tahunan PERHAPI, 1(1), 475–488.
Sugianti, K., Yunarto, Sadisun, I. A., & Kartiko, R. D. (2022). Analysis of Maximum-Rainfall-Infiltration-Induced Slope Stability Using the Transient Rainfall Infi ltration and Grid-based Regional Slope-stability Model in Cililin, West Java, Indonesia. Indonesian Journal on Geoscience, 9(2), 263–278. https://doi.org/10.17014/IJOG.9.2.263-278
Tagore, R. F., Helmi, M., Satriadi, A., Khoirunnisa, H., & Ismanto, A. (2025). Kajian Karakteristik dan Run-Up Gelombang Tsunami Berdasarkan Pemodelan Hidrodinamika 2D di Perairan Selatan Bali. Buletin Oseanografi Marina, 14(1), 90–100.
Yassar, M. F., Nurul, M., Nadhifah, N., Sekarsari, N. F., Dewi, R., Buana, R., Fernandez, S. N., & Rahmadhita, K. A. (2020). Penerapan Weighted Overlay Pada Pemetaan Tingkat Probabilitas Zona Rawan Longsor di Kabupaten Sumedang, Jawa Barat. Jurnal Geosains dan Remote Sensing, 1(1), 1–10. https://doi.org/10.23960/jgrs.2020.v1i1.13
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