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Salim, Zaindra Fakhri
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Civil Engineering, Building, Construction & Architecture Engineering Environmental Science Materials Science & Nanotechnology Transportation

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Perilaku Nilai Kuat Tekan Bebas pada Tanah Ekspansif Kabupaten Tangerang Maha Agung, Putera Agung; Nurfitria, Aida; Adinegara, Aldo Wirastana; Salim, Zaindra Fakhri
Journal of Applied Civil Engineering and Infrastructure Technology Vol 7 No 1 (2026): Agustus 2026 (Articles in Press)
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.
Simulasi Angka Keamanan Menggunakan Metode Elemen Hingga Berdasarkan Nilai Kohesi (c) dan Sudut Geser Dalam Maha Agung, Putera Agung; Salim, Zaindra Fakhri; Nurfitria, Aida; Adinegara, Aldo Wirastana
Journal of Applied Civil Engineering and Infrastructure Technology Vol 7 No 2 (2026): Desember 2026 (Articles in Press)
Publisher : Indonesian Society of Applied Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52158/jaceit.v7i2.962

Abstract

Expansive soil is a type of soil that can expand and shrink based on the moisture content. In Cisauk Subdistrict, Tangerang City, there are many damages to building structures and/ or roads caused by the expansive soil. This research is intended to identify the expansive soil, including its physical characteristics, in determining the cohesion (c) and internal shear angle (f) values using the UU (unconsolidated undrained) triaxial test. Test results indicated that the cohesion value was around 0.33 kg/cm² or 32.94 kN/m², and an internal shear angle of 20.51°. Both datasets were used to analyze slope stability modeling in defining the safety factor (SF) using PLAXIS software in 2D during rainy and dry seasons. Each condition was evaluated by the three slope variations, such as 20°, 40°, and 60°. Modeling results show that the (SF) would be higher on flatter slopes, and on the contrary, would decrease on steeper slopes. In addition, the (SF) would be higher during the dry season than the rainy season. The soil condition would be more saturated during the rainy season.
Co-Authors Adinegara, Aldo Wirastana Nurfitria, Aida Putera Agung Maha Agung