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All Journal Jurnal Ilmiah Universitas Batanghari Jambi Angkasa: Jurnal Ilmiah Bidang Teknologi Jurnal Darma Agung Jurnal Talenta Sipil Jurnal Konstruksi Electrician : Jurnal Rekayasa dan Teknologi Elektro
Alfath Zain
Universitas Teknokrat Indonesia
Agriculture, Biological Sciences & Forestry Humanities Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Electrical & Electronics Engineering Engineering Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Library & Information Science Materials Science & Nanotechnology Social Sciences

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Analisis dan Mitigasi Bencana Alam Kekeringan terhadap Kebutuhan Air Baku di Perumahan Antasari Permai Sukabumi Bandar Lampung Sandya, I Gede Agung; Zain, Alfath; Jamaludin, Jamaludin
Jurnal Ilmiah Universitas Batanghari Jambi Vol 24, No 3 (2024): Oktober
Publisher : Universitas Batanghari Jambi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33087/jiubj.v24i3.5076

Abstract

This research aims to carry out a drought analysis of raw water needs in these settlements, as well as designing mitigation strategies to overcome this problem. The research method involves field surveys and drought index analysis using the Standardized Precipitation Index (SPI) method. The results of analysis using the SPI-3 and SPI-12 methods show that in the last 20 years the nature of the drought index in the Antasari Permai Housing Complex has been dominated by "Normal" characteristics. The times that should receive more attention are June to November because in these months the drought shows the characteristics of "Extreme Dry" compared to other months. As a response, the proposed mitigation strategies can be implemented in the short term or long term. In the short term, mitigation is carried out by supplying clean water using water tankers, PDAM or by building rainwater reservoirs. Meanwhile, the long term is carried out in an integrated and sustainable manner by considering natural phenomena, weather anomalies, groundwater cycles. Maintaining the groundwater cycle by means of reforestation and groundwater conservation planning in the form of biopores or infiltration wells. Implementation of this strategy is expected to increase the resilience of settlements to drought and ensure the availability of adequate raw water for community needs.
Simulasi Potensi Banjir Sungai Way Balau Menggunakan HEC-RAS dan Data Curah Hujan Satelit Ananda, Dea Septa; Zain, Alfath; Safitri, Destiana
Jurnal Konstruksi Vol 23 No 2 (2025): Jurnal Konstruksi
Publisher : Institut Teknologi Garut

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33364/konstruksi/v.23-2.2401

Abstract

This study aims to simulate the flood potential of the Way Balau River, Bandar Lampung City, using rainfall data from the GPM-IMERG satellite and HEC-RAS software. The analysis uses a log-normal distribution for rainfall, a rational method for discharge calculation, and water level simulation is performed at STA. 301. The results show that a 0.5 m high embankment on the left side is capable of withstanding a 5-year return period discharge, but in the 25, 50, and 100-year return periods, there is overflow on the right side with water heights of 0.16 m, 0.25 m, and 0.33 m, respectively. This study recommends increasing the capacity of the embankment on the right side of the river to mitigate the risk of long-term flooding.
Simulasi Potensi Luapan Sungai Menggunakan HEC-RAS pada Kondisi Curah Hujan Ekstrem Sitorus, Roland; Zain, Alfath; Wahyu Ningsih, Panti
Jurnal Konstruksi Vol 23 No 2 (2025): Jurnal Konstruksi
Publisher : Institut Teknologi Garut

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33364/konstruksi/v.23-2.2402

Abstract

This study simulates flood potential in the Nunyai River, Bandar Lampung City, using GPM-IMERG satellite rainfall data from 2014–2023. A normal distribution was applied to estimate design rainfall, which was then converted into flood discharge using the rational method. The HEC-RAS 5.0.6 simulation results indicate that five river cross-sections are unable to accommodate Q10–Q100 discharges, leading to overflow on the left, right, or both sides. These findings highlight the need for river normalization and levee reinforcement at vulnerable overflow points.
Pengaruh Variasi Campuran Serbuk Kayu Akasia, Jati, Medang Terhadap Kuat Tekan Beton Sandita Pranatya, Made; Zain, Alfath
Jurnal Konstruksi Vol 23 No 2 (2025): Jurnal Konstruksi
Publisher : Institut Teknologi Garut

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33364/konstruksi/v.23-2.2478

Abstract

This study aims to evaluate the effect of adding teak, acacia, and medang wood powder on the compressive strength of concrete and its suitability for non-structural applications. This study was conducted experimentally in a laboratory by making cylindrical concrete test specimens and testing their compressive strength after 28 days. Wood powder was mixed into normal concrete with variations of 0% (control concrete), 20%, 40%, and 60%. The test results showed that concrete with a 20% wood powder mixture still met the criteria for non-structural use, with an average compressive strength of 9.60 MPa. However, the addition of large amounts of wood powder (40%–60%) caused a significant decrease in compressive strength, with average values ranging from 6.49 MPa to 4.42 MPa. The control concrete without wood powder showed the best performance with an average compressive strength of 10.79 MPa. These findings indicate that wood powder from Teak, Acacia, and Medang trees can be used as a partial substitute for sand in non-structural concrete mixtures with a maximum usage limit of 20%. The implication is that the use of wood powder at this level not only has the potential to reduce production costs but also helps reduce the need for sand by around 0.93 kg per concrete mixture, thereby contributing to wood waste management and natural resource conservation.
Co-Authors Adinata, Chandra Ananda, Dea Septa Anugriansyah, Anggry Dalimunthe, Ernando Rizki Dian Pratiwi dirga, Dirga Rama setiadi Jamaludin . M Rizky Ismail Misdalena, Felly Novia Utami Putri Prayoga, Anggi Pujianto, Tri Safitri, Destiana Sandita Pranatya, Made Sandya, I Gede Agung Saputra, Achmad Faisal Saputra, Edo Dwi Sari, Renanda Okta Sitorus, Roland Wahyu Ningsih, Panti Yacub, Vanita Kesumawati Yudhatama, Aldi