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All Journal Jurnal Teknik Sipil BENTANG : Jurnal Teoritis dan Terapan Bidang Rekayasa Sipil Jurnal Rekayasa Sipil Jurnal Ilmiah Rekayasa Sipil MOTIVECTION : Journal of Mechanical, Electrical and Industrial Engineering Jurnal Talenta Sipil SAINSTEK
Andriani Andriani
Jurusan Teknik Sipil, Fakultas Teknik, Universitas Andalas. Padang, Sumatera Barat, Indonesia
Automotive Engineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Electrical & Electronics Engineering Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Transportation

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Optimization of Bored Pile Foundation Usage in Apartment Development Projects in Batam Defitri, Hilga; Andriani, Andriani; Hakim, Abdul; Hape, Shafira Rahmadilla
Jurnal Teknik Sipil Vol 25, No 2 (2025): Vol 25, No 2 (2025): JURNAL TEKNIK SIPIL EDISI MEI 2025
Publisher : Fakultas Teknik Universitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/jts.v25i2.91760

Abstract

Batam is actively developing apartments and hotels to support the growing tourism sector. Proper planning of structures and foundations is essential in the construction process to ensure the building's strength. Several factors must be considered when designing bored pile foundations, such as depth, diameter, and pile cap dimensions. Costs increase as the piles' diameter and the pile cap's dimensions expand. Therefore, optimizing the foundation design to achieve the optimal pile diameter, number of piles, and bearing capacity is important while maintaining cost efficiency without compromising foundation safety standards. This study aims to optimize the allowable bearing capacity of the actual bored pile foundation using the N-SPT value approach and compare the costs of executing the actual bored pile foundation with the optimized bored pile foundation. The analysis results show that the actual foundation bearing capacity in the field is 21.038,448 kN, while the optimized foundation has a bearing capacity of 10.812 kN. The cost for the actual bored pile foundation in the field is IDR 604.862.538, while the cost for the optimized pile foundation is IDR 416.517.335. The difference in cost between the two is IDR 188.345.203, indicating a cost saving of 68,86% with the optimized foundation.
Karakteristik Material Tanah Galodo Gunung Marapi terhadap Potensi Bencana Riadi, Irvan; Hakam, Abdul; Andriani, Andriani
Jurnal Talenta Sipil Vol 8, No 2 (2025): Agustus
Publisher : Universitas Batanghari Jambi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33087/talentasipil.v8i2.903

Abstract

Mount Marapi in West Sumatra is an active mountain with a history of disasters, including galodo or flash floods due to eruptions and high rainfall. The soil material carried by the galodo greatly influences the potential for disaster. This research analyzes the classification and characteristics of galodo soil material and its relationship with disaster potential, as well as determining mitigation efforts that can be carried out. This research method uses laboratory experiments. Soil samples were taken from 16 points at seven river locations, namely Batang Jambu, Batang Malanang, Batang Bangkahan, Batang Arau, Sungai Talang, and Batang Anai, with a distance of 50 meters between points. Samples were collected in the form of disturbed soil, which was then analyzed to determine its physical and mechanical properties. The results showed that the galodo soil material was classified as sand (SW), silty sand (SM), and clayey sand (SC). Its physical properties include a specific gravity of 2.65-2.67, a bulk density of 1.61-1.96 gr/cm3, and a plasticity index of 8.25-9.17%. Mechanically, the soil has a cohesion of 0.029–0.071 kg/cm2 and a deep shear angle of 26.57–37.77°. These characteristics indicate non-cohesive properties, so when saturated due to high rainfall, the pore water pressure increases and causes high-speed debris flow. The kinetic energy of these flows can damage riverbanks, settlements, and infrastructure. Mitigation measures include structural measures such as the construction of check dams, groundsills, and sabo dams, as well as non-structural measures such as early warning, disaster education, and limiting settlements on riverbanks.
Simulasi Luas Genangan Banjir Batang Sinamar Nagari Taram Kab. Lima Puluh Kota Taufik, Arrahmat; Daud, Darwizal; Andriani, Andriani
Jurnal Talenta Sipil Vol 8, No 2 (2025): Agustus
Publisher : Universitas Batanghari Jambi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33087/talentasipil.v8i2.953

Abstract

Batang Sinamar is located in Lima Puluh Kota Regency, West Sumatra Province, and flows through Riau Province before emptying into the Strait of Malacca. Flooding can cause loss of life and property. In the Nagari Taram area, floods occur almost every year with an average inundation depth of 1–2 meters. However, no research has been conducted on flood control and early warning systems. Meanwhile, the economic losses experienced by the community are significant. Therefore, it is necessary to conduct simulations of flood inundation depth and flood-prone areas as an initial study for flood control planning. The simulation uses HEC-RAS 6.4.1 software, QGIS, and the DEMNAS base map from BIG. Hydrological analysis is performed using the Nakayasu and Snyder Synthetic Unit Hydrographs with flood return periods of 2, 5, 10, and 25 years. The simulation results show that the flood inundation area increases with higher return periods. For the flood event in 2019, the discharge was equivalent to a 5-year return period flood, which was 982.18 m³/s, with an inundation area of 293.51 hectares. Hazard zones (marked in red) are predominantly found along the riverbanks, with an average distance of around 100 meters from the river's edge. The study concludes that the areas along the riverbanks are unsuitable for residential settlements, schools, and agricultural activities due to inundation depths of ≥3.0 meters.
Co-Authors AA Sudharmawan, AA Abdul Hakam Abdul Hakim Azra, Dio Syahlung Bambang Istijono, Bambang Candra, Prasetia Dego Daud, Darwizal Defitri, Hilga Fachriansyah, Ikrar Febrin Anas Ismail Franky Leo Fernandez Giffari, Muhammad Al Hape, Shafira Rahmadilla Indra, Bambang Adi Jamhari Jamhari Laurency, Sonya Ostha Mahdi Mahdi, Mahdi Mahmudi, Fuad Muhammad Latif Narny, Yenny Putra, Hendri Gusti Raihan, Shufrael Riadi, Irvan Rina Yuliet, Rina Risma Apdeni Saputra, Dendi Taufik, Arrahmat Yossafra, Yossafra Yuliet, Rina Zelby, Rahayu Zis, Sirajul Fuad