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All Journal Jurnal Teknik Sipil Journal of Geoscience, Engineering, Environment, and Technology Journal of Applied Civil Engineering and Infrastructure Technology (JACEIT)
Adinegara, Aldo Wirastana
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Civil Engineering, Building, Construction & Architecture Earth & Planetary Sciences Engineering Environmental Science Materials Science & Nanotechnology Physics 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.
Pengukuran Langsung Kurva Karakteristik Air – Tanah (SWCC) Pada Limbah Beton Dengan Metode Tempe Cell Adinegara, Aldo Wirastana; Ramadhan, Rabbani Isya; Hamdany, Abdul Halim; Sagitaningrum, Fathiyah Hakim
Jurnal Teknik Sipil Vol 32 No 1 (2025): Jurnal Teknik Sipil - Edisi April
Publisher : Institut Teknologi Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5614/jts.2025.32.1.4

Abstract

Abstrak Terjadinya peningkatan volume limbah padat akibat pekerjaan konstruksi, sangat berdampak terhadap permasalahan ekologi serius. Dalam praktik rekayasa geoteknik, Capillary Barrier System dikenal sebagai suatu sistem konstruksi ramah lingkungan yang tersusun dari material limbah beton. Secara eksperimental, studi terhadap karakteristik material limbah beton pada kondisi takjenuh masih belum banyak dilakukan saat ini. Tujuan penelitian ini ialah untuk melakukan pengukuran secara langsung terhadap SWCC dan permeabilitas takjenuh pada material limbah beton dengan menggunakan alat Tempe Cell. Pengukuran SWCC berdasarkan alat Tempe Cell dilakukan secara bertahap, dengan mengaplikasikan tekanan udara sebesar 0.5, 1, 3, 5, 10, 20, dan 40 kPa. Adapun hasil data pengukuran, selanjutnya direpresentasikan dalam kurva best fit SWCC yang dianalisis dengan menggunakan fungsi regresi non-linier. Secara statistik, estimasi terhadap fungsi permeabilitas juga dilakukan berdasarkan hasil data pengujian permeabilitas jenuh dan representasi dalam kurva best fit SWCC. Berdasarkan hasil analisis, dapat diketahui bahwa karakteristik dari sifat hidraulik pada material limbah beton memiliki kemampuan penyimpanan air sebesar 31 %, serta pengaliran air dalam kondisi jenuh sebesar 1.12 x 10-5 m/s dan takjenuh sebesar 3.76 x 10-16 m/s. Kata Kunci : Fungsi permeabilitas, kurva karakteristik tanah-air, limbah beton, tempe cell. Abstract  The rise in solid waste from construction activities significantly impacts ecological issues. In geotechnical engineering practice, the Capillary Barrier System is an environmentally friendly construction system composed of concrete waste materials. Experimental studies on the characteristics of concrete waste materials under unsaturated conditions haven't been widely conducted at this time. The purpose of this study was to directly measure the SWCC and unsaturated permeability of concrete waste materials using the Tempe Cell. SWCC measurements based on the Tempe Cell were performed in stages, applying air pressures of 0.5, 1, 3, 5, 10, 20, and 40 kPa. The measurement data results were then presented in the SWCC best-fit curve, which was analyzed using a non-linear regression function. A statistical estimation of the permeability function was carried out using data from the saturated permeability tests and the SWCC best-fit curve. Based on the analysis results, it is evident that the characteristics of the hydraulic properties of concrete waste material have a water storage capacity of 31 % and water flow in saturated conditions of 1.12 x 10-5 m/s and unsaturated conditions of 3.76 x 10-16 m/s. Keywords: Concrete waste, permeability function, soil-water characteristic curve, tempe cell.
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.
Investigation of Aquifer Model to Potential of Ground Movement at Brau Village, Kota Wisata Batu, Jawa Timur, indonesia Maha Agung, Putera Agung; Gautama, Gregorius Aryoko; Istiatun; Amir, Mardiana; Adinegara, Aldo Wirastana; Eko Wiyono; Wacono, Sidiq
Journal of Geoscience, Engineering, Environment, and Technology Vol. 10 No. 3 (2025): JGEET Vol 10 No 03 : September (2025)
Publisher : UIR PRESS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25299/jgeet.2025.10.3.16836

Abstract

Soft soils at Brau Village area, Kota Wisata Batu (KWB) usually form in alluvial highlands due to weathering of sedimentary rocks. An upper and lower aquifer of sandy layer exist between soft soil. Groundwater pools into aquifer layers and infiltration from surface water into the soft soil layers (clayey and/ or silty) generated a ground movement potential. Study will elaborate the behavior of layers of clayey and/ or silty separated by 2 (two) aquifer layers in detail causing some damages to infrastructure. Wall and/ or floor cracks at school buildings and collapse and/ or differential settlement in road pavement  are a failure of soil layers due to high pore water pressure coming from direction of aquifer zone especially during rainy season. Pore water pressures were determined by rate of settlement prediction from consolidation laboratory analyzed by Ying et al (2015) and actual measurement using electromagnetic data. Research results found that gradually increment of pore water pressure would exceed a total stress in reducing an effective stress drastically and created a location of initial ground movement at the toe of slope around infrastructure area. High pore water pressure due to the increment of water volume at aquifer layer can push down soil layers with safety factor (SF) < 1.0. At the same time, ground movement would generate cracks > 10 cm width at wall and floor of school building structure; and collapse or differential settlement occurred in road construction > 18 cm depth due to bonding agent separated between soil particles.
Co-Authors Eko Wiyono Gautama, Gregorius Aryoko Hamdany, Abdul Halim Istiatun mardiana amir, mardiana Nurfitria, Aida Putera Agung Maha Agung Ramadhan, Rabbani Isya Sagitaningrum, Fathiyah Hakim Salim, Zaindra Fakhri Sidiq Wacono