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INDONESIA
Potensi : Jurnal Sipil Politeknik
Published by Politeknik Negeri Bandung
ISSN : 14112949     EISSN : 25808133     DOI : -
Core Subject : Engineering,
Civil Engineering, Building, Construction & Architecture Engineering Transportation
Potensi: Jurnal Sipil Politeknik merupakan hasil penelitian dalam ilmu ketekniksipilan yang dilakukan oleh Jurusan Teknik Sipil Politeknik Negeri Bandung. Potensi: Jurnal Sipil Politeknik ini terindeks google scholar dengan nomor ISSN 2580-8133 (online).
Arjuna Subject : -
Articles 203 Documents
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Finite Element Method Based Slope Stability Analysis of Crack Soil: Tana Toraja – Enrekang Road KM 240+400 Saputro, Oktavian Dwi; Khoiri, Mohamad; Warnana, Dwa Desa
Potensi: Jurnal Sipil Politeknik Vol. 28 No. 1 (2026): Potensi: Jurnal Sipil Politeknik
Publisher : Department of Civil Engineering, Politeknik Negeri Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35313/potensi.v28i1.6816

Abstract

Indonesia is a region with mountainous topography and high rainfall, a condition that naturally increase vulnerability to landslides. However, conventional slope stability assessments often produce inaccurate safety predictions because they tend to ignore the existence of macro structures such as cracked soil. This study investigates the landslide trigger mechanism on Tana Toraja – Enrekang road at STA 240+400 using finite element modeling via Plaxis 2D. The mechanical behavior of intact slope scenarios is compared against slopes with varying crack depths to evaluate worst-case stability boundaries. Numerical results demonstrate that even under fully saturated intact soil conditions, the slope remains stable with a Safety Factor (SF) of 1.181. Conversely, critical conditions leading to collapse (SF = 0.998) are reached when 9-meter deep cracks are fully infiltrated by rainwater. The analysis indicates that this instability is strongly driven by a critical combination of soil cohesion loss and hydrostatic water pressure acting as an active driving force within the cracks. These findings demonstrate the cracked soil mechanism is a determining factor for landslides at this site, highlighting the necessity of integrating crack depth thresholds into early warning and surface mitigation strategies
A Comparative Analysis of Pinned and Fixed Base Supports in Building Structural Modeling kasyanto, heri; Fazri Fahrezi, Irgi; Hanifa, Sania
Potensi: Jurnal Sipil Politeknik Vol. 28 No. 1 (2026): Potensi: Jurnal Sipil Politeknik
Publisher : Department of Civil Engineering, Politeknik Negeri Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35313/potensi.v28i1.6025

Abstract

In structural modeling, the superstructure and substructure are often analyzed separately. The choice of support for the superstructure should reflect the substructure’s behavior whether fixed, pinned, a combination, or spring based. In this study, two similar model with different support, that is pinned and fixed supports will be analyzed and the results subsequently compared to evaluate structural performance. An office building in Bandung, West Java, with a reinforced concrete frame was selected as the study object, and building irregularities were disregarded in the analysis. The natural periods, inter-story drift, as well as the demand capacity ratio resulted from the models were evaluated through this study. The results of this study show that pinned supports building model yields an average value of story drift that is 18.66% greater in the X direction and 19.33% greater in the Y direction compared to fixed supports building model. The demand capacity ratio of the pinned support building model was also 5.29% greater than that of fixed support, indicates that the required strength (internal force) of structural elements in models with pinned support is greater than fixed support.
Utilization of Styrofoam Waste as An Asphalt Modifier to Support The Development Of Environmentally Road Pavements Liana, Ulwiyah Wahdah Mufassirin; Prahmadanegara , Muhammad Jefri; Agustina, Fitriyati
Potensi: Jurnal Sipil Politeknik Vol. 28 No. 1 (2026): Potensi: Jurnal Sipil Politeknik
Publisher : Department of Civil Engineering, Politeknik Negeri Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35313/potensi.v28i1.6821

Abstract

The rising demand for road infrastructure as well as vehicle growth needs high-performance and eco-friendly pavement materials. However, plastic waste, especially non-biodegradable Styrofoam, still remains a major environmental challenge. Previous studies have examined styrofoam in plastic-modified asphalt, but limited research has addressed the optimum styrofoam content using a multi-parameter Marshall performance approach under local aggregate conditions and Bina Marga 2024 specifications. This study aims to evaluate the effect of styrofoam waste as an asphalt modifier on the Marshall characteristics of Asphalt Concrete–Wearing Course (AC-WC) mixtures and to determine the optimum styrofoam content. Laboratory tests were conducted with styrofoam variations of 5.8%, 6.0%, and 6.2% at an Optimum Asphalt Content of 5.81%. Styrofoam was cut into 1 × 1 cm pieces before being mixed into hot asphalt, with the mixing process carried out according to Bina Marga specifications. Marshall parameters were analyzed, including stability, flow, density, VIM, VMA, VFA, and Marshall Quotient. The results indicate that styrofoam modification improves mixture stiffness, stability, and resistance to deformation. The optimum performance was achieved at 6.0% styrofoam content. The utilization of styrofoam waste has the potential to reduce plastic pollution while enhancing pavement performance, contributing to sustainable infrastructure development aligned with SDG 9.

Page 21 of 21 | Total Record : 203

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