ANALISIS STABILITAS LERENG DAN PENANGANAN LONGSORAN MENGGUNAKAN METODE ELEMEN HINGGA PLAXIS V.8.2 (STUDI KASUS : RUAS JALAN LIWA SIMPANG GUNUNG KEMALA STA.263+650)
ABSTRACT: The downpour in most
of Taman Nasional Bukit Barisan Selatan (TNBBS) Lampung areas caused landslide
on a cliff in Liwa Simpang Gunung Kemala STA.263+650 roadside so that a part of
the roadside covered by the landslide. For this case, it takes slope stability
analysis to determine safety factors of the slope in research site that can
figuring accordance with the real conditions on the field in order to enable
the approaches condition on the result of analysis and to simplify theprocess
of figuring the handling, one of them is through the using of manual formulas
and Plaxis program.
The result of this research shows that soil parameters greatly affect the
stability of slope. Partiallysaturated slope condition has the smallest
stability compared to other conditions. Based on the analysis conducted before
handling condition, it is acquired the deformed mesh = 885x10-3 m; active pore
pressures = -168.89 m; effective stress = -535.76 kN / m2; safety factor =
0.2847. On the condition after handling, it is obtained values of deformed mesh
= 818x10-3 m; active pore pressures = -132.36 m; effective stress = -209.77 kN
/ m2; safety factor = 1.3548.
Penulis: Setyanto, Ahmad Zakaria, Giwa Wibawa Permana
Kode Jurnal: jptsipildd160708
