Journal of Geosciences and Applied Geology
Vol 3, No 3 (2019): Journal of Geological Sciences and Applied Geology

SLOPE STABILITY ANALYSIS USING FINITE ELEMENT METHOD (FEM) IN WARA OPEN PIT COAL MINE, PT ADARO INDONESIA, TABALONG, SOUTH KALIMANTAN

Josua Washington Sihotang (Fakultas Teknik Geologi, Universitas Padjadjaran)
Taufiq Bakhtiar (PT Adaro Indonesia)
Nur Khoirullah (Laboratorium Geologi Teknik, Universitas Padjadjaran)
Raden Irvan Sophian (Laboratorium Geologi Teknik, Universitas Padjadjaran)
Zufialdi Zakaria (Laboratorium Geologi Teknik, Universitas Padjadjaran)



Article Info

Publish Date
12 Feb 2020

Abstract

The stability of slope is impacted by Rock Mass Rating, material properties, and slope geometry. Furthermore, the slope stability analysis was needed to know the slope stability condition. This research aims to know the Strength Reduction Factor (SRF) value by using Finite Element Method (FEM) using Hu=1 and Hu=Auto. The geotechnical mapping that is Rock Mass Rating (RMR) and Measured Section were done to get the Geological Strength Index (GSI) and profile of layer rocks in highwall slope SCT_J1 and SCT_J2. From the FEM analysis, actual slope SCT_J1 has the SRF=1.25 with Hu=1 and SRF=1.4 with Hu=Auto. SCT_J2 has SRF=1.21 with Hu=1 and SRF=1.3 with Hu=Auto. From the slope stability analysis, SCT_J1 and SCT_J2 were classified into stable slope due to the SRF value higher than 1.2.

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Journal Info

Abbrev

gsag

Publisher

Subject

Earth & Planetary Sciences Engineering

Description

Journal of Geological Sciences and Applied Geology (GSAG) is a National multidisiplinary Journal focus on Geological Sciences, Applied Geology, and Geological Engineering and Earth Science. Our Mission is to publish research related to (but not limited) Geology Petrology Paleontology Stratigraphy ...