Analisis Pengaruh Tanaman Vetiver Terhadap Stabilitas Lereng

DOI: https://doi.org/10.32722/pt.v19i2.2744

Putri Kurniawati

Abstract


This research analyzed the influence of vetiver strengthening on slope stability. The research do in prototype media, where the slope was planned 80°. Before planting vetiver, firstly original soil is tested by index and engineering properties test. Based on the test, we can conclude that the soil use is silty clay with the value of qu and cohesion of prototype with 3 vetiver are 0,322 kg/cm2 and 0,085 kg/cm2. In prototype with 6 vetiver, the value of qu and cohesion are 0,329 kg/cm2 and 0,025 kg/cm2. Vetiver planted and tested by direct shear and unconfined compression test at planting time 4 - 7 and 16 weeks. At 16 week, the value of qu and cohesion of prototype with 3 vetiver are 0,714 kg/cm2 and 0,306 kg/cm2. In prototype with 6 vetiver, the value of qu and cohesion are 0,782 kg/cm2and 0,325 kg/cm2. The test result parameters are used as inputs to GeoStudio. Based on the program, in prototype with 3 vetiver, the safety factor increase from 0,516 to 1,519, and in prototype with 6 vetiver the safety factor increase from 0,201 to 1,545. So, it can be concluded that vetiver can improve slope stability.


Keywords


Vetiver; Cohesion; Slope Stability; Safety Factor

References


L. van Du and P. Truong, “Vetiver grass system for erosion control on drainage and irrigation channels on severe acid sulfate soil in southern Vietnam,” Vetiver grass Syst. Eros. Control Drain. Irrig. channels Sev. acid sulfate soil South. Vietnam, no. Photo 1, pp. 1–11, 2002.

P. N. V. Truong and R. Loch, “Vetiver system for erosion and sediment control,” in Proceeding of 13th International Soil Conservation Organisation Conference, 2004, no. 247, pp. 1–6.

R. Wijayakusuma, “STABILISASI LAHAN DAN FITOREMEDIASI DENGAN VETIVER SYSTEM,” in Green Design Seminar, 2007, no. 021, pp. 1–16.

A. Noor, J. Vahlevi, and F. Rozi, “Stabilisasi Lereng untuk Pengendalian Erosi dengan Soil Bioengineering Menggunakan Akar Rumput Vetiver,” Poros Tek., vol. 3, no. 2 ISSN 2442-7764, 2015.

F. Ilham, “Karateristik Mekanis Perkuatan Lereng Menggunakan Geo-Root dengan Tanaman Akar Wangi Erosi permukaan lereng jalan dapat ditangani melalui berbagai metode , salah satu metode adalah dengan memanfaatkan media tanaman . Tanaman dapat berpengaruh baik untuk m,” Karateristik Mek. Perkuatan Lereng Menggunakan Geo-Root dengan Tanam. Akar Wangi, pp. 1–7, 2010.

Zulkarnain, “Metode Penanganan Kelongsoran Dalam Menjaga Infrastruktur Yang Ada,” Anal. Numer. Pengaruh Tanam. Vetiver Terhadap Stabilitas Lereng, p. 43, 2014.

D. Bina Marga, “Spesifikasi Penguatan Tebing,” 1992.

K. Pekerjaan Umum, “Penanaman Rumput vetiver untuk pengendalian erosi permukaan dan pencegahan longsoran dangkal pada lereng jalan,” 2012.


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