Analisis Penggunaan Tanaman Vetiver terhadap Stabilitas Lereng pada Bendungan Way Sekampung
Abstract
Problems that occur in the western part of As Way Sekampung have the potential for landslides to occur. Efforts used to handle slope strengthening by planting vetiver plants. The research method used to analyze slopes uses the limit equilibrium method on slip surface sections using the Morgenstren-Price method with the help of Geostudio 2023.1.0 software. SLOPE/W to get the safety factor under normal conditions and under seismic load conditions. By using a seismic load with a return period of 500 years (PE 10% in 50 years) with a Peak Ground Acceleration (PGA) value for the Way Sekampung Dam inundation area of 0,265 g. In vetiver plants, the root depth is simulated according to the top soil depth of 0,0 – 0,1 m. Soil planted with vetiver plants experienced an increase in the value of cohesion (c) by 74,42% and a decrease in the value of the angle of internal friction (φ˚) by 49,40%. The conclusion obtained was that slope stability in normal existing conditions was 4,525 and in normal vetiver plant strengthening conditions the safety factor increased to 4,529. Then, in the existing seismic conditions, the safety factor is 2,624 and in strengthening vetiver plants with seismic loads, the safety factor value increases to 2,626. It can be concluded that vetiver plants are able to strengthen slope conditions.
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Ardiansyah, M. R. 2023. Analisa Stabilitas Lereng Dengan Menggunakan Software GeoStudio 2023 Pada Lereng Aliran Sungai Brantas di Wilayah Permukiman Wringinanom Gresik. Jurnal Vokasi Teknik Sipil, 1(1), 127-132.
Asrurifak, M. 2018. Laporan Progres Revisi SNI 1726:2012 – Sub-Struktur. Rapat Teknis Sub-Struktur 23 Mei 2018, Jakarta.
BBWS Mesuji Sekampung, 2019, Laporan Studi Longsoran Pada Daerah Genangan Bendungan Way Sekampung
Chok, Y., Kaggwa, G., Jaksa, M., & Griffiths, D. 2004. Modelling the effects of vegetation on stability of slopes.
Cornelius Dwi Hartono Tumbel, Steeva G. Rondonuwu, Roski R. I. Legrans. 2020. Analisa Kestabilan Lereng Perkuatan Rumput Vetiver Kasus Daerah Rawan Longsor Winangun Dua. TEKNO, 17.
Depeartemen Pekerjaan Umum (Deppu) RI, 2005. Pedoman Konstruksi dan Bangunan: Rekayasa Penanganan Keruntuhan Lereng Pada Tanah Residual dan Batuan.
Gabriella, Violetta, Margaretha Pangemanan, A E Turangan, and O B A Sompie. 2014. Analisis Kestabilan Lereng Dengan Metode Fellenius (Studi Kasus: Kawasan Citraland). Jurnal Sipil Statik, 2(1), 37–46.
Hamdhan, Indra Noer, Desti Santi Pratiwi, Rizka Adisya, and Kamila Rahmah. 2020. Analisis Stabilitas Pada Lereng Dengan Perkuatan Tanaman Vetiver Menggunakan Metode Elemen Hingga 3D. Media Komunikasi Teknik Sipil
Agustina, D. H. 2012. Soil Bioengineering Sebagai Alternatif Metoda Stabilisasi Longsoran. Jurnal Dimensi, 1(1).
Kurniawati, Putri, and Sri Wulandari. 2020. Analisis Pengaruh Tanaman Vetiver Terhadap Stabilitas Lereng.
Noor, A., Vahlevi, J., & Rozi, F. 2011. Stabilisasi Lereng untuk Pengendalian Erosi dengan Soil Bioengineering Menggunakan Akar Rumput Vetiver. Poros Teknik, 3(2).
Sari, S. 2021. Studi Penggunaan Rumput Vetiver sebagai Perkuatan Lereng Timbunan Sampah pada Closed Landfill, Doctoral dissertation, Universitas Hasanuddin.
Saraun, Virginia G, Fabian J Manoppo, and Agnes T Mandagi. 2023. Analisis Stabilitas Lereng Menggunakan Aplikasi Google Earth Dan PLAXIS 3D.
Takwin, G. A., Turangan, A. E., & Rondonuwu, S. G. 2017. Analisis Kestabilan Lereng Metode Morgenstern-Price (Studi Kasus: Diamond Hill Citraland). TEKNO, 15(67).
Truong, P., & Loch, R. 2004. Vetiver system for erosion and sediment control. Proceeding of 13th international soil conservation organization conference, 1-6.
DOI: http://dx.doi.org/10.33087/jiubj.v24i2.5040
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