Analisis Geologi Teknik Longsor di Desa Kuatae, Kecamatan Kota Soe, Nusa Tenggara Timur

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Published: May 31, 2021
DOI: https://doi.org/10.17146/eksplorium.2021.42.1.6081
Keywords:
Kota Soe, longsor, translasi, rotasi, degradasi kuat geser

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Heri Syaeful
Pusat Teknologi Bahan Galian Nuklir - BATAN
Dhatu Kamajati
Pusat Teknologi Bahan Galian Nuklir - BATAN
Yoshi Rachael
Pusat Teknologi Bahan Galian Nuklir - BATAN
Ebenheser Damaledo
Badan Penelitian dan Pengembangan Daerah Kabupaten TTS

Abstract

Landslides in Kuatae Village, Kota Soe District often occur during the rainy season. The slope failures cause damage to houses and other infrastructures. The research of slope failure has been carried out by using engineering geological mapping, engineering geological drilling, laboratory test, slope stability analysis, and identification of countermeasure options. Based on the mapping results, slope failures occur in two models, the first one was coral limestone blocks translation failure over marl and claystone, and the second one was rotation failure on marl that controlled by the base layer which contact with claystone. The result of the standard penetration test on claystone and marl showed a very high consistency value. The slope stability analysis had shown the slope is in a stable state, but slope failure occurred in several places on the marl and claystone area. Those indicated that the material had encounter shear strength degradation under several circumstances. Further investigation on the degradation of the rock material, such as slake durability and swelling clay are very important to determine the most appropriate countermeasure option to be applied in the landslide case of Kuatae Village.


 

Article Details

How to Cite
Syaeful, H., Kamajati, D., Rachael, Y., & Damaledo, E. (2021). Analisis Geologi Teknik Longsor di Desa Kuatae, Kecamatan Kota Soe, Nusa Tenggara Timur. EKSPLORIUM, 42(1), 55–68. https://doi.org/10.17146/eksplorium.2021.42.1.6081
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Vol. 42 No. 1 (2021): MEI 2021
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References

[1] H. Jocom, D. D Kameo, I. Utami, dan A. I. Kristijanto, “Air dan Konflik: Studi Kasus Kabupaten Timor Tengah Selatan,” J. Ilmu Lingkung., vol. 14, no. 1, hal. 51–61, 2016, doi: 10.14710/jil.14.1.51-61.

[2] Pemerintah Kabupaten Timor Tengah Selatan, Kajian Lingkungan Hidup Strategis. Soe, 2017.

[3] R. Hidayat, S. Jonson Sutanto, dan M. Deddy Munir, “Kondisi Geologi Dan Pola Hujan Sebagai Pemicu Longsor Di Jawa Tengah Bagian Selatan Pada Juni 2016,” Tek. Hidraul., vol. 7, no. 2, hal. 147–162, 2016.

[4] Hasnawir, “Intensitas Curah Hujan Memicu Tanah Longsor Dangkal di Sulawesi Selatan,” J. Penelit. Kehutan. Wallacea, vol. 1, no. 1, hal. 62–73, 2012, doi: 10.18330/jwallacea.2012.vol1iss1pp62-73.

[5] Y. Chen, K. R. Withanage, T. Uchimura, W. Mao, dan W. Nie, “Shear Deformation and Failure of Unsaturated Sandy Soils in Surface Layers of Slopes During Rainwater Infiltration,” Meas. J. Int. Meas. Confed., vol. 149, 2020, doi: 10.1016/j.measurement.2019.107001.

[6] R. Yang, J. Huang, D. V. Griffiths, J. Meng, dan G. A. Fenton, “Optimal Geotechnical Site Investigations for Slope Design,” Comput. Geotech., vol. 114, no. May, 2019, doi: 10.1016/j.compgeo.2019.103111.

[7] R. Indera K., E. Mina, dan S. B, “Analisis Stabilitas Lereng dan Perencanaan Soil Nailing dengan Software Geostudio 2007,” Fondasi, vol. 4, no. 1, 2015.

[8] Departemen Pekerjaan Umum, Rekayasa Penanganan Keruntuhan Lereng pada Tanah Residual dan Batuan, no. Pd T-09-2005-B. 2005.

[9] A. Su, Z. Zou, Z. Lu, dan J. Wang, “The Inclination of the Interslice Resultant Force in the Limit Equilibrium Slope Stability Analysis,” Eng. Geol., vol. 240, hal. 140–148, 2018, doi: 10.1016/j.enggeo.2018.04.016.

[10] A. Santo, S. Del Prete, G. Di Crescenzo, dan M. Rotella, “Karst Processes and Slope Instability: Some investigations in the Carbonate Apennine of Campania (Southern Italy),” Geol. Soc. Spec. Publ., vol. 279, hal. 59–72, 2007, doi: 10.1144/SP279.6.

[11] P. J. Sabatini, R. C. Bachus, P. W. Mayne, J. A. Schneider, dan T. E. Zettler, “Evaluation of Soil and Rock Properties,” Geotech. Eng. Circ., vol. 5, hal. 385, 2002.

[12] H. Syaeful, W. Cakrabuana, dan Y. Rachael, “Investigasi Tanah di PTBGN-BATAN, Pasar Jumat, Jakarta, Indonesia,” in Prosiding Seminar Geologi Nuklir dan Sumber Daya Tambang 2019, 2019, hal. 234–241.

[13] W. Norhaliza, B. Ismail, A. T. S. Azhar, dan N. J. Nurul, “Shear Strength of Remoulding Clay Samples Using Different Methods of Moulding Shear Strength of Remoulding Clay Samples Using Different Methods of Moulding,” in IOP Conf. Series: Materials Science and Engineering 136 (2016), 2016, hal. 7, doi: 10.1088/1757-899X/136/1/012018.

[14] X. Zhang, X. Liu, C. Chen, dan L. Kong, “Engineering Geology of Residual Soil Derived from Mudstone in Zimbabwe,” Eng. Geol., 2020, doi: https://doi.org/10.1016/j.enggeo.2020.105785.

[15] Z. Hong, S. Liu, S. Shen, dan T. Negami, “Comparison in Undrained Shear Strength between Undisturbed and Remolded Ariake Clays,” Geotech. geoenvironmental Eng., vol. 132, no. February, hal. 272–275, 2006, doi: 10.1061/(ASCE)1090-0241(2006)132:2(272).

[16] Supandi, Z. Zakaria, E. Sukiyah, dan A. Sudradjat, “The Correlation of Exposure Time and Claystone Propoerties at the Warukin Formation Indonesia,” Geomate, vol. 15, no. 52, hal. 160–167, 2018, doi: https://doi.org/10.21660/2018.52.68175.

[17] A. Sridharan dan K. Prakash, “Classification Procedures for Expansive Soils,” Proc. Inst. Civ. Eng. - Geotech. Eng., vol. 143, no. 4, hal. 235–240, 2009, doi: 10.1680/geng.2000.143.4.235.

[18] H. Syaeful dan W. Cakrabuana, “Analisis Potensi Ekspansi Batulempung Formasi Bojongmanik,” J. Pengemb. Energi Nukl., vol. 21, no. 1, hal. 25–34, Agu 2019, doi: 10.17146/jpen.2019.21.1.5476.

[19] B. Oztekin, T. Topal, dan C. Kolat, “Assessment of Degradation and Stability of a Cut Slope in Limestone, Ankara-Turkey,” Eng. Geol., vol. 84, hal. 12–30, 2006, doi: 10.1016/j.enggeo.2005.11. 012.

[20] Kementerian Pekerjaan Umum, “Peta Hazard Gempa Indonesia 2010,” 2010.

[21] A. M. Youssef dan N. H. Maerz, “Slope Stability Hazard Assessment and Mitigation Methodology Along Eastern Desert Aswan-Cairo Highway, Egypt,” J. King Abdulaziz Univ. Earth Sci., vol. 20, no. 2, hal. 161–181, 2009, doi: 10.4197/Ear.20-2.8.

[22] M. Grošić, S. Dugonjić, dan D. Udovič, “Designing, Constructing and Monitoring of Slopes in Rock Mass in Croatia,” in Proceedings of the International Young Scholars’ Symposium on Rock Mechanics - Boundaries of Rock Mechanics Recent Advances and Challenges for the 21st Century, 2008, hal. 463–469, doi: 10.1201/9780203883204.ch88.