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All Journal Borneo Engineering: Jurnal Teknik Sipil Journal of Applied Civil Engineering and Infrastructure Technology (JACEIT)
Aldo Wirastana Adinegara
Politeknik Negeri Jakarta
Civil Engineering, Building, Construction & Architecture Engineering Environmental Science Materials Science & Nanotechnology Transportation

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Analisis Stabilitas Lereng Menggunakan Matras dan Cerucuk Bambu pada Projek X Musyaffa Esa Cahya; Intan Juliana; Yelvi Yelvi; Putera Agung Maha Agung; Aldo Wirastana Adinegara; Sony Pramusandi; Muhammad Fathur Rouf Hasan; Rahmat Faizal
Borneo Engineering: Jurnal Teknik Sipil Volume 9 Nomor 3 Tahun 2025
Publisher : Jurusan Teknik Sipil, Fakultas Teknik, Universitas Borneo Tarakan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35334/be.v9i3.336

Abstract

The construction of PT. X' depot in Langsa City, Aceh, is located on soft clay soil that requires slope stability analysis for the embankment. This research aims to analyze slope stability using bamboo mattresses and piles as reinforcement to improve the safety factor. The analysis was conducted using manual calculations (Bishop method) and GeoStudio software (also using the Bishop method), under both static conditions and seismic influence (pseudostatic approach with a horizontal seismic coefficient (kh) = 0.18). The manual calculation results showed that the unreinforced slope had a safety factor (SF) of 1.1428 < 1.25 (unstable), which decreased to 0.6711 < 1.1 (unstable) under seismic load. Meanwhile, the GeoStudio software analysis indicated that the unreinforced slope had an SF of 1.256 > 1.25 (stable) but dropped to 0.903 < 1.1 (unstable) under seismic load. The use of 1–4 layers of bamboo piles and matting increased the SF to 1.318–1.35 without seismic influence. Under seismic conditions, the SF of the slope reinforced with 1–4 layers of bamboo piles and matting improved to 0.931–0.97. However, the slope was still considered critical during an earthquake (SF < 1.1).
Perilaku Nilai Kuat Tekan Bebas pada Tanah Ekspansif Kabupaten Tangerang Putera Agung Maha Agung; Aida Nurfitria; Aldo Wirastana Adinegara; Zaindra Fakhri Salim
Journal of Applied Civil Engineering and Infrastructure Technology Vol 7 No 1 (2026): Agustus 2026
Publisher : Indonesian Society of Applied Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52158/jaceit.v7i1.961

Abstract

Expansive soil is a type of soil that often causes problems in construction due to its ability to swell and shrink due to fluctuations in moisture content. This study evaluates the behavior of an expansive soil sample from Kranggan Road, Cisauk Subdistrict, Tangerang Regency, using the laboratory unconfined compressive strength (UCT), including its physical properties. The unconfined compressive strength testing is needed to determine (qu) values of expansive soils. Road damage due to the expansive soil would cause some cracks and/ or pavement surface damage in a short time. The research aims to find the deformation behavior based on the plasticity index (PI) and (qu) value using PLAXIS 2D. The results show that the expansive soil could be classified as montmorillonite inorganic clay with a high value of plasticity index (PI) of 35.30%. Unconfined compression value was 3.53 kg/cm2 and 2.89 kg/cm2 in compacted and remoulded conditions, respectively. Magnitude of deformation during the rainy season indicated that a heave deformation of 0.14 mm and the settlement reached 0.47 mm with an SF value of 1.10. The maximum of a heave deformation value was 0.14 mm and 0.30 mm for settlement with a safety factor (SF) value of 1.30 during the dry season.
Co-Authors Aida Nurfitria Faizal, Rahmat Intan Juliana Muhammad Fathur Rouf Hasan Musyaffa Esa Cahya Putera Agung Maha Agung Sony PRAMUSANDI Yelvi Yelvi Zaindra Fakhri Salim