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All Journal Teknologi Sipil : Jurnal Ilmu Pengetahuan dan Teknologi
Salsabila Zahra
Universitas Muhammadiyah Semarang
Civil Engineering, Building, Construction & Architecture Engineering

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ANALISIS STABILITAS DAN JUSTIFIKASI TEKNIS PERKUATAN STRUKTUR PADA TANAH LUNAK (STUDI KASUS : REHABILITASI DAERAH IRIGASI GLAPAN TIMUR DAN BARAT) suudi al mukarom; Ian Karunia Perkasa; Salsabila Zahra
Teknologi Sipil : Jurnal Ilmu Pengetahuan dan Teknologi Vol 10, No 1 (2026): JTS TEKNOLOGI SIPIL
Publisher : Universitas Mulawarman

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30872/ts.v10i1.26684

Abstract

This study presents a technical justification for structural reinforcement in the rehabilitation of the Glapan Irrigation Area Phase II, focusing on soft soil conditions prone to sliding failure. The research aims to evaluate the stability of the existing lining structure and to determine an appropriate reinforcement method. The methodology includes field investigation, geotechnical analysis, slope stability evaluation, and assessment of alternative reinforcement solutions. The results indicate that the existing structure does not meet the minimum safety requirements, with a safety factor of 1.15 against sliding, which is below the standard value of 1.5. To address this issue, a minipile system is proposed as the most effective reinforcement solution. The designed minipile, with a diameter of 20 cm and a depth of 3–4 meters, significantly improves structural performance. The analysis shows that the safety factor increases to 2.15 after reinforcement, indicating a substantial enhancement in stability. This study provides a technically justified recommendation for design modification, ensuring structural safety and long-term performance under soft soil conditions. The findings contribute to improving the reliability of irrigation infrastructure in similar geotechnical environments.
Co-Authors Ian Karunia Perkasa suudi al mukarom