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All Journal Rekayasa Sipil
Harimurti Harimurti
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Civil Engineering, Building, Construction & Architecture

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Analisis Probabilitas Keruntuhan Pada Lereng Tanah Residual Dengan Variasi Sudut Kemiringan Lereng Thiya Fianti; Eko Andi Suryo; Harimurti Harimurti
Rekayasa Sipil Vol 12, No 2 (2018)
Publisher : Department of Civil Engineering, Faculty of Engineering, University of Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.rekayasasipil.2018.012.02.5

Abstract

Slope is (part of) the side of a hill or mountain. Slope stability became the main concern while working on a construction project, especially on road/highway project. Slope stability determined by soil parameters which include: physical & mechanical behavior of the soil, ground water level, rock mass structure, etc. Because there is an uncertainty on parameters value in the slope design, causing the slope vulnerable, it needs a concept such as probability analysis to find the stability of the slope. Probability analysis using Monte Carlo method involved a few parameters such as unit weight, cohesion and friction angle. Soil and Slope Geometry data were obtain from prior research. In this analysis there are three trials conducted with various slope angle along with similar material. The result will show a safety factor and failure probability percentage. From this analysis, it can be concluded that the steeper the slope, the lower safety factor number will be shown. The contrary result applied on probability of failure, the steeper the slope, the bigger probability of failure for soil material will occur.
PREFABRICATRED VERTICAL DRAIN IMPROVED SOFT SOIL USING THREE-DIMENSIONAL FINITE ELEMENT METHOD Gilang Ramadan Kololikiye; Yulvi Zaika; Harimurti Harimurti
Rekayasa Sipil Vol. 15 No. 2 (2021)
Publisher : Department of Civil Engineering, Faculty of Engineering, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.rekayasasipil.2021.015.02.10

Abstract

The subgrade layer of freeway construction in East Java contains high compressibility of soft soil with 24.5 m depth and 10.2 m height of the embankment. It is necessary to stabilize using PVD by accelerating the process of consolidation to increase its bearing capacity. In this study, 3D FEM programming is used to analyze the consolidation in pursuing to compare with the analytical results. 3D FEM shows the settlement without PVD is 0.834 m with excess pore water -4 kN/m2, while using PVD the settlement 0.819 m with excess pore pressure -8 kN/m2. For the analytical results, both variations indicate the settlement 0.787 m. It’s because the FEM discretization analyzed in 3D gives more accurate results.
Co-Authors Eko Andi Suryo Gilang Ramadan Kololikiye Thiya Fianti Yulvi Zaika