ANALISIS STABILITAS LERENG DENGAN PERKUATAN TIANG MENGGUNAKAN METODE ELEMEN HINGGA (STUDI KASUS JALAN DIPONEGORO KM. 2 PASIR PENGARAIAN)
DOI:
https://doi.org/10.30606/aptk.v11i1.1691Keywords:
slope stability, safety factor, finite element method, strength reduction analysis.Abstract
The slope that often occurs on the road Diponegoro Km. 2 Pasir Pengaraian has always been a problem by Dinas Bina Marga Dan Pengaira Kabupaten Rokan Hulu, but previously improvements were made but were not entirely successful. Then the slope repair with retaining walls using the bore pile pile foundation was considered quite successful to prevent landslides on the road section. Based on these conditions the author tries to analyze and evaluate the stability of the slope by strengthening the bore pile pile, by analyzing the influence of the pile position (Xp/X), pile diameter, pile length (Lz/L) pile and pile spacing (S/D) on the slope. The object of the research was carried out on the slope of Diponegoro Km. 2 Pasir Pengaraian. The analysis used is field tension analysis with finite element method analysis of strength reduction. Soil parameters are known from several tests in the field and laboratories which are used as design variables in the analysis process.This thesis presents the safety factor of the two-dimensional finite element method with strength reduction analysis using the OPTUMG2 program to validate the slope stability analysis, slope stability analysis simulation with homogeneous clay soil, medium homogeneous clay and homogeneous rigid clay with mast strengthening and evaluation of slope stability analysis in the study case. The results of the numerical analysis based on the influence of the pile position on the slope, pile diameter, pile length, and spacing between the piles with two pile head conditions is free head and fixed head, the condition of the mast is sufficient to improve the safety factor of slope stability.References
Ausilio, E., Conte, E., and Dente, G. (2001). “Stability analysis of slopes reinforced with piles.” Computers and Geotechnics, Vol. 28, No. 8, 591-611.
Abramson, L.W., Lee, T.S., Sharma, S, and Boyce, G.M. (2002). “Slope stability and stabilization methods.” 2nd ed. John Wiley
Ang, E.C. (2005). “Numerical investigation of load transfer mechanism in slopes reinforced with piles.” PhD. Thesis, University of Missouri-Columbia.
Ausilio, E., Conte, E., and Dente, G. (2001). “Stability analysis of slopes reinforced with piles.” Computers and Geotechnics, Vol. 28, No. 8, 591-611.
Bahan-bahan kuliah mekanika tanah 1, 2 dan Lanjutan
Chen, C.Y. and Martin, G.R. (2002). “Soil-straucture interaction for landslide stabilizing piles.” Computers and Geotechnics, Vol. 29, 363-386.
Cai F, and Ugai K.(2000). “ Numerical analysis of the stability of a slope reinforced with piles.” Soils Found, Japan Geotech Society, Vol. 40(1), 73–84.
Das, Braja M., Mekanika Tanah (Prinsip-Prinsip Rekayasa Geoteknis), Jilid 1 dan Jilid 2, Penerbit Erlangga, Jakarta, 1995.
Bowles, Joseph E., Analisis dan Desain Pondasi, Jilid 1, Edisi Keempat, Penerbit Erlangga, Jakarta, 1998. Das, Braja M., Mekanika Tanah (Prinsip-Prinsip Rekayasa Geoteknis), Jilid 1 dan Jilid 2, Penerbit Erlangga, Jakarta, 1995
Hardiyatmo, Hary Christady, Mekanika Tanah 1 dan Mekanika Tanah 2, Gramedia Pustaka Utama, Jakarta, 2002
Sunggono KH, Buku Teknik Sipil, Penerbit Nova, Bandung, 1995
Dinas Bina Marga Dan Pengairan Kabupaten Rokan Hulu
Duncan, J.M. and Dunlop, P. (1969). “Slopes in stiff –fissured clay and shales.” Journal of Soil Mechanics and Foundation Division, ASCE, Vol. 95, No.2, 467 – 492.
Duncan, J.M. (1996). “State of the art: limit equilibrium and finite-element analysis of slopes.” Journal of Geotechnical Engineering, Vol. 122, No. 7, 577-596.
Duncan, J.M. and Wright, S.G. (2005). Soil Strength and Slope Stability, Wiley, New Jersey.
Griffiths, D.V., and Lane, P.A. (1999). “Slope stability analysis by finite elements.” Géotechnique, Vol. 49, 387-403.
Hassiotis, S., Chameau, J.L, Gunaratne, M. (1997). “Design method for stabilization of slopes with piles.” Journal of Geotechnical and Geoenvironmental Engineering, Vol. 123 No.4, 314–23.
I-Hsuan Ho, 2009, Optimization of Pile Reinforced Slopes Using Finite Element Analysies, Lowa Satae University
Ito, T., Matsui, T., and Hong, W.P. (1981), “Design method for stabilizing piles against
Matsui, T., and San, K. C., 1992, “Finite element slope stability analysis by shear strength reduction technique.” Soils and Foundations, Vol. 32, No. 1, 59-70.
Wei, W.B., and Cheng, Y.M. (2009). “Strength reduction analysis for slope reinforced with one row of piles.” Computers and Geotechnics, Vol. 36, 1176-1185.
Hirnawan, R.F., 1993, Ketanggapan Stabilitas Lereng Perbukitan Rawan Gerakan tanah atas Tanaman Keras, Hujan & Gempa, Disertasi, UNPAD, 302pp
