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Humaira Afrila
University Lambung Mangkurat
Civil Engineering, Building, Construction & Architecture Computer Science & IT Electrical & Electronics Engineering Industrial & Manufacturing Engineering Mechanical Engineering

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Analisis Faktor Keamanan Tanggul Sungai dengan Perkuatan Turap Menggunakan Perangkat Lunak Geo5 di Desa Walangku Kabupaten Hulu Sungai Tengah Humaira Afrila; Markawie; Wira Lianto
Jurnal Teknik Vol 24 No 1 (2026): Jurnal Teknik
Publisher : Universitas Negeri Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37031/jt.v24i1.806

Abstract

Walangku Village, Pemangkih District, Hulu Sungai Tengah Regency, is crossed by a river channel located adjacent to a local access road. The river embankment has experienced a landslide, posing a potential risk to public safety and the protective function of the surrounding area. One alternative to improve embankment stability is reinforcement using a sheet pile wall. This study consisted of soil testing, stability analysis of the existing embankment, and stability analysis of the embankment with sheet pile reinforcement. Soil testing was conducted through field and laboratory investigations, including Standard Penetration Test (SPT), physical property testing, direct shear test and vane shear test. Embankment stability was analyzed using the Software Geo5. The test results indicate that the shallow soil layer has high water content, low shear strength, and soft soil conditions, which contribute to embankment instability. The stability analysis of the existing condition yielded a safety factor of 1.2, indicating that the embankment was unstable. After modeling the sheet pile reinforcement using the Software Geo5, the safety factor increased to 3.36, meeting the required safety criteria. These results show that sheet pile reinforcement is effective in improving embankment stability and may serve as an alternative solution for landslide mitigation at the study site.
Co-Authors Markawie Wira Lianto