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All Journal Jurnal Abdimas Ilmiah Citra Bakti (JAICB) Mitra Akademia: Jurnal Pengabdian Masyarakat Journal of Engineering and Applied Technology JURNAL POLI-TEKNOLOGI
Yelvi
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Journal : JURNAL POLI-TEKNOLOGI

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Analisis Stabilitas Dinding Penahan Tanah Pada Pembangunan Jalan Inspeksi Waduk Brigif Muhammad Rifqi Aryadi; Yelvi
Jurnal Poli-Teknologi Vol. 21 No. 3 (2022)
Publisher : Politeknik Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32722/pt.v21i3.5043

Abstract

The construction of the inspection road located in the Brigif retention pond was directly crossed by the Krukut River. For safety and comfortable road traffic against sliding, it would need a redesign of the slope of road in order to produce a safety factor (SF) ≥ 1,25 for static condition and SF ≥ 1,10 for dynamic condition. Slope conditions are considered when High Water Level (HWL) and Low Water Level (LWL) conditions. This analysis was carried out by using of manually calculations and SLOPE/W. Both assessment using the Simplified Bishop Method. The results shows that when HWL in static conditions is 3,20 for manual calculations and 2,48 for SLOPE/W. Then, when HWL conditions with the dynamic condition is 1,88 for manual calculations and 1,72 for SLOPE/W. In LWL of static conditions is obtained of 3,13 for manual calculations and 2,58 for SLOPE/W. The results of the analysis of SF LWL with dynamic conditions is 2,20 for manual calculations and 1,79 for SLOPE/W. It can be concluded partially that the slope condition is stable. Furthermore, to prevent the scouring effect on retaining walls on the slopes is used gabion. Stability safety factor (SF) for overturning is 4,25 ≥ 2; for sliding is 1,59 ≥ 1,5; and for the bearing capacity is 825,31 kN/m ≥ 378 kN/m. Overall stability analysis is shown that the slope with the reinforced with gabion system is able to retain the overturning, sliding and bearing capacity.
The Effect of Vetiver Roots on Stability Slope Siagian, Agung Prasetya; Yelvi; Praditya, Andikanoza
Jurnal Poli-Teknologi Vol. 23 No. 3 (2024)
Publisher : Politeknik Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32722/pt.v23i3.7039

Abstract

Slope stability is a crucial factor in land management, especially in the context of environmental protection and erosion control. Vetiver plants can increase the compressive and shear strength of soil. The purpose of this research is to analyze the effect of vetiver roots on soil cohesion and shear angle in the laboratory and to analyze the effect of vetiver roots on slope stability using Geostudio Slope/w software in 2024. The analysis method used is the bishop method. The results obtained based on laboratory testing state that vetiver roots that have an age of 5-6 months increase the cohesion value from 0.099 kg/cm2 to 0.240 kg/cm2. The cohesion value increased by 142% at a depth of 20 cm against a slope of 35.54°. Based on the slope stability analysis using Geostudio slope/w in 2024, the largest percentage increase in safety factor (SF) value was obtained at 4.98% with a distance between vetiver plants of 80 cm and 10.32% with a distance between vetiver plants of 30 cm. However, the subsequent increase in root length did not affect the safety factor (SF) value.
Co-Authors Eko Wiyono Eva Azhra Latifa Handi Sudardja, Handi Muhammad Rifqi Aryadi Nuraulia Rahmah, Firly Praditya, Andikanoza Rizal, Rikki Sofyan Salimah, A'isyah Sanubari, Agung Siagian, Agung Prasetya Sony PRAMUSANDI Sulis Setiowati