Hia, Victor Bela Sendoro (2026) Analisis Penyebab Kerusakan pada Jalan Eksisting dan Alternatif Perencanaan Jalan dengan Timbunan Tanah Dikombinasi dengan Mortar Busa yang Diperkuat dengan Geotekstil. Studi Kasus: Ruas Jalan Aruk – Sp. Take STA 99+000 s.d. STA 99+550, Kalimantan Barat. Masters thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Pembangunan jalan pada ruas Aruk - Sp. Take di Kabupaten Sambas, Kalimantan Barat, menghadapi tantangan geoteknik berupa lapisan tanah lunak sedalam 8 meter dan kendala hidrologi yang menyebabkan kerusakan berulang berupa penurunan (settlement) dan pergerakan tanah. Desain awal menggunakan metode Pile Slab yang memerlukan biaya konstruksi sangat tinggi. Penelitian ini bertujuan untuk merencanakan alternatif penanganan jalan yang lebih efisien dari segi biaya dan waktu tanpa mengabaikan faktor keamanan. Metode penelitian mencakup analisis hidrologi, perhitungan penurunan konsolidasi, dan analisis stabilitas menggunakan perangkat lunak GEO5. Hasil penelitian menunjukkan bahwa kerusakan disebabkan oleh kapasitas box culvert eksisting yang tidak memadai terhadap debit banjir rencana Q_{100} serta penurunan konsolidasi tanah yang mencapai 1,94 meter. Sebagai solusi, direncanakan struktur jembatan bentang 14 meter dan kombinasi timbunan dengan Prefabricated Vertical Drain (PVD). Analisis komparatif menunjukkan bahwa penggunaan 100% material timbunan biasa yang dikombinasi dengan PVD pola pemasangan segitiga jarak 1,25 meter merupakan opsi paling optimal. Metode ini mampu mencapai derajat konsolidasi 91,2% dalam 22 minggu dengan total biaya Rp 26,8 Miliar dan durasi pelaksanaan 264 hari. Hal ini berarti perencanaan alternatif yang dilakukan dalam studi ini memberikan penghematan biaya yang signifikan dibandingkan dengan konstruksi Pile Slab.
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Road construction on the Aruk - Sp. Take section in Sambas Regency, West Kalimantan, faces geotechnical challenges involving an 8-meter-deep soft soil layer and hydrological constraints, which result in recurring damage such as settlement and soil displacement. The initial design utilized the Pile Slab method, which requires excessively high construction costs. This research aims to design alternative road handling measures that are more cost- and time-efficient without compromising safety factors. The research methodology includes hydrological analysis, consolidation settlement calculations, and stability analysis using GEO5 software. The results indicate that the damage was caused by the existing box culvert's inadequate capacity relative to the Q_{100} design flood discharge, as well as soil consolidation settlement reaching 1,94 meters. As a solution, a 14-meter span bridge structure and a combination of embankment with Prefabricated Vertical Drains (PVD) are proposed. Comparative analysis shows that the use of 100% ordinary embankment material combined with PVD in a triangular pattern at 1.25-meter spacing is the most optimal option. This method is capable of achieving a 91.2% degree of consolidation within 22 weeks, with a total cost of 26.8 billion rupiah and an execution duration of 264 days. Consequently, the alternative planning conducted in this study provides significant cost savings compared to Pile Slab construction.
| Item Type: | Thesis (Masters) |
|---|---|
| Uncontrolled Keywords: | Tanah Lunak, Mortar Busa, Prefabricated Vertical Drain, Geotekstil Soft Soil, Foam Mortar, Prefabricated Vertical Drain, Geotextile |
| Subjects: | T Technology > TA Engineering (General). Civil engineering (General) > TA174 Computer-aided design. T Technology > TA Engineering (General). Civil engineering (General) > TA434 Inorganic polymers T Technology > TA Engineering (General). Civil engineering (General) > TA439 Lightweight concrete. High strength concrete. T Technology > TE Highway engineering. Roads and pavements > TE175 Road and highway design |
| Divisions: | Faculty of Civil, Planning, and Geo Engineering (CIVPLAN) > Civil Engineering > 22101-(S2) Master Thesis |
| Depositing User: | Victor Bela Sendoro Hia |
| Date Deposited: | 26 Jan 2026 06:51 |
| Last Modified: | 26 Jan 2026 06:51 |
| URI: | http://repository.its.ac.id/id/eprint/130363 |
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