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All Journal Jurnal Teknik Pengairan: Journal of Water Resources Engineering Construction and Material Journal Jurnal Artesis
Trisno Lestari, Rini
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Civil Engineering, Building, Construction & Architecture Engineering Environmental Science Materials Science & Nanotechnology Transportation

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Journal : construction and material journal

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ANALISIS STABILITAS TIMBUNAN PROYEK PEMBANGUNAN JALUR GANDA JALAN KERETA API (KA) SEPANJANG-MOJOKERTO Wulan Anggarita, Ovilia; Putra Purnama, Paksitya; Nurtjahjaningtyas, Indra; Trisno Lestari, Rini
Construction and Material Journal Vol. 6 No. 2 (2024): Construction and Material Journal Vol. 6 No. 2 Oktober 2024
Publisher : Politeknik Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32722/cmj.v6i2.6630

Abstract

The construction of the Sepanjang-Mojokerto railway double track is an initiative to address the growing demand for railway transportation infrastructure. During the building of the double-track railroad, it is anticipated that the rail structure will endure the weight of traversing trains; hence, a stability study for settlement and sliding is essential. The settlement of the embankment between KM 49+500 and KM 49+750 was studied using sondir and borlog correlation data and then a geoslope model to see how stable the embankment was against sliding. The calculated findings indicate a reduction of 0.49 m to 1.49 m. The decrease is unsafe as it is above the permissible limit of 20 cm; achieving a decline to U90% requires around 0.9 years—15 years. Consequently, it is imperative to expedite the reduction using PVD and preloading. The PVD installation employs a triangle configuration with a spacing of 1.5 meters, requiring a duration of 16 to 20 weeks to achieve a 90% reduction. The stability control of the embankment against sliding on the railroad body yielded a safety factor (SF) value ranging from 1.63 to 2.33. SF > 1.5 indicates that the SF value is secure, surpassing the permissible threshold.
The ANALISIS PERBANDINGAN PERKUATAN DINDING PENAHAN TANAH DENGAN SHEET PILE Trisno Lestari, Rini; Herzanita Y, Ayu; Zuhdan, Muhammad Ghinva
Construction and Material Journal Vol. 7 No. 1 (2025): Construction and Material Journal Vol. 7 No. 1 Mei 2025
Publisher : Politeknik Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32722/cmj.v7i1.7075

Abstract

Natural disasters are recurring challenges experienced by countries worldwide, including Indonesia. One of the most common natural disasters in Indonesia is landslides, which frequently occur in various regions each year. Soil plays a critical role in construction, as stable and strong soil conditions are essential for structural integrity. However, poor soil conditions are often encountered, particularly on sloped terrain, increasing the risk of landslides. This study aims to analyze the Safety Factor (SF) of a slope using software based on the Limit Equilibrium Method (LEM). The SF value serves as a reference for further analysis; when SF < 1, reinforcement is required to support the applied loads. The slope stability analysis in this study yielded an SF value of 0.52. Based on this result, two reinforcement methods were evaluated: Retaining Wall and Corrugated Concrete Sheet Pile (CCSP). The analysis indicated that the Retaining Wall failed to adequately support the slope. In contrast, the CCSP reinforcement provided sufficient stability, with a Safety Factor of 1.587. Therefore, the Corrugated Concrete Sheet Pile (CCSP) is recommended as a safe and effective slope reinforcement solution.
Co-Authors Ayu Herzanita Dedy Pratama1, Dimas Dwi Ariyani Indra Nurtjahjaningtyas Luthfi Amri Wicaksono Prautama Dewi, Atri Purnama Putra, Paksitya Putra Purnama, Paksitya Putri Kirani, Fachriza Riyasyul Huda, Ahmad Wulan Anggarita, Ovilia Yasmin Kanwar, Sonia Zuhdan, Muhammad Ghinva