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All Journal Inersia : Jurnal Teknik Sipil dan Arsitektur International Journal of Science and Engineering (IJSE) Jurnal Ilmiah Poli Rekayasa IPTEK Journal of Proceedings Series Jurnal Dampak jurnal niara Jurnal Penelitian Pendidikan IPA (JPPIPA) Syntax Literate: Jurnal Ilmiah Indonesia Civil Engineering Dimension FROPIL (Forum Profesional Teknik Sipil) Rang Teknik Journal Dinamisia: Jurnal Pengabdian Kepada Masyarakat Jurnal Rekayasa Sipil Ensiklopedia of Journal Jurnal Ilmiah Rekayasa Sipil Jurnal Pembangunan Nagari Jurnal Civronlit Unbari Journal of Applied Engineering and Technological Science (JAETS) Jurnal Amplifier: Jurnal Ilmiah Bidang Teknik Elektro dan Komputer Jurnal Talenta Sipil Jurnal Teknik Sipil Institut Teknologi Padang Journal of Civil Engineering and Vocational Education
Bambang Istijono, Bambang
Civil Engineering Dept., Andalas University, Senior Lecturer, Padang
Agriculture, Biological Sciences & Forestry Arts Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Engineering Environmental Science Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Physics Public Health Social Sciences Transportation Other

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Analisis Risiko, Waktu dan Biaya dengan Simulasi Monte Carlo pada Lanjutan Rekonstruksi Bendung/ Cek Dam Sungai Limau 2024 Mayuli; Istijono, Bambang; Sonata MS, Herix
Jurnal Teknik Sipil Institut Teknologi Padang Vol 13 No 1 (2026): Jurnal Teknik Sipil Institut Teknologi Padang
Publisher : ITP Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21063/jts.2026.V1301.019-27

Abstract

Pada setiap tahapan-tahapan proses pekerjaan konstruksi memiliki risiko-risiko yang menjadi hambatan, yang berpengaruh terhadap durasi waktu pelaksanaan dan memiliki konsekuensi terhadap biaya. Penelitian ini menekankan cara identifikasi risiko yang memperoleh 10 faktor risiko terbagi menjadi 65 faktor risiko dan usaha-usaha mitigasi terhadap semua faktor risiko, untuk mengurangi hambatan yang mungkin terjadi, sehingga durasi waktu pekerjaan dan kerugian secara finansial bisa dihindari semaksimal mungkin. Untuk itu proses pekerjaan konstruksi dapat diantisipasi dengan membuat simulasi terhadap kemungkinan terjadinya risiko yang akan memperpanjang durasi waktu pekerjaan dengan metode Network Diagram (diperoleh jalur kritis berisi 10 aktivitas kritis serta durasi masing-masing) dan korelasinya terhadap biaya proyek khususnya Biaya Variabel. Dengan menggunakan data hasil survei terhadap 10 responden terpilih (Non-Probability Sampling) diperoleh skor likehood dan consequences untuk mendapat probabilitas yang digunakan dalam Simulasi Monte Carlo untuk memprediksi risiko mana akan terjadi dan seberapa parah akibat risiko tersebut, serta analisis hubungan antara risiko dengan aktivitas kritis, sehingga dapat diperhitungkan kemungkinan kerugian tiap aktifitas kritis. Simulasi ini juga digunakan untuk memperhitungkan durasi waktu masing-masing aktivitas kritis, dengan menggunakan tiga durasi waktu, pesimis, forecast, dan optimis. Dengan probabilitas terjadinya risiko dan akibat terhadap durasi waktu pelaksanaan diperoleh nilai kerugian finansial (biaya) baik akibat probabilitas risiko dan keparahannya, serta keterlambatan waktu, serta perbandingan kerugian dengan mitigasi dan tanpa mitigasi risiko.
Evaluation of Water Needs and Availability in The Design of The Water Needs Masterplan on The IPDN West Sumatera Campus Fauzi, Fauzi; Istijono, Bambang; Hidayat, Benny
Journal of Applied Engineering and Technological Science (JAETS) Vol. 7 No. 1 (2025): Journal of Applied Engineering and Technological Science (JAETS)
Publisher : Yayasan Riset dan Pengembangan Intelektual (YRPI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37385/jaets.v7i1.8171

Abstract

The sustainable availability of clean water is crucial for supporting academic, residential, and institutional operational activities in higher education settings. In general, previous research has primarily focused on clean water planning at the city or regional level, without examining the need and availability of water on boarding campuses that have distinct consumption patterns and distribution systems. This research aims to fill the gap by conducting an integrated evaluation of water needs and availability, serving as the basis for preparing a water management master plan at the West Sumatra IPDN Campus. A mixed-methods approach is employed, combining quantitative analysis based on SNI 03-7065-2005 to estimate water needs with qualitative analysis of infrastructure conditions and water quality through field surveys, interviews, and laboratory tests. The results showed that the water demand reached 92,150 liters/day (1.1 liters per second), while the source capacity was 5.03 liters per second, resulting in a surplus of 1,839%. Although the water supply was quantitatively adequate, quality tests revealed turbidity and bacteriological contamination at some distribution points, attributed to the corrosion of galvanized pipes and the absence of secondary filtration. This confirms that sufficient quantity does not guarantee the quality and efficiency of distribution. Therefore, network modernization, the implementation of layered filtration, and periodic monitoring are necessary. This research contributes to the development of a sustainable campus water management model in Indonesia.
Assessing the Performance of PNP Reservoir Based on Short-Term Rainfall Data in the Upper Kuranji Watershed, Padang, Indonesia Masdaf, Nofra; Fauzan; Bambang Istijono; Revalin Herdianto
INERSIA lnformasi dan Ekspose Hasil Riset Teknik Sipil dan Arsitektur Vol. 21 No. 2 (2025): December
Publisher : Universitas Negeri Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21831/inersia.v21i2.85199

Abstract

This study was conducted to assess the performance of the PNP Reservoir in managing water resources as well as reducing flood risk in the Batu Busuk Sub-watershed, which is located in the upstream part of the Kuranji watershed, Padang City. The uniqueness of this study lies in the comprehensive approach that combines IDF analysis with three methods (Talbot, Sherman, and Ishiguro), flood discharge estimation through the Rational and Nakayasu SUH methods, and modeling of reservoir inflows and outflows using the Muskingum flood routing method. Based on the results of the IDF analysis, the highest rain intensity during the two-hour duration was recorded at 27.22 mm/hour (Talbot), 24.67 mm/hour (Sherman), and 23.49 mm/hour (Ishiguro). Before the reservoir was constructed, the peak flood discharge reached 0.33 m³/sec at 0.35 hours. The simulation results showed that the reservoir was able to reduce the peak discharge by 0.57% and caused a delay in the peak flow of 0.6 minutes. This finding shows that the PNP reservoir contributes positively to flood control, although the efficiency of the reduction is still limited. Overall, the results of this study can serve as an important reference in the design of adaptive reservoirs in areas characterized by steep topography and high rainfall, and emphasize the role of reservoirs as part of sustainable flood mitigation infrastructure in tropical urban areas.
Laboratory Study of Geotechnical Characteristics of Soil in Landslide-Prone Zone in Talamau District, West Pasaman Regency Nofrizal; Fauzan; Abdul Hakam; Bambang Istijono; Andriani Setiawan; Aprisal
Jurnal Penelitian Pendidikan IPA Vol 11 No 8 (2025): August
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v11i8.12046

Abstract

The main triggering factor for landslides is high rainfall intensity, especially during the rainy season. Excessive rainfall can cause an increase in water content in the soil, which in turn will reduce the shear strength of the soil and increase the volume weight of the soil. The method used is a laboratory experiment by taking samples from the field. The sample of this study was sandy clay soil taken from a landslide-prone area located in Talamau District, West Pasaman Regency. Based on the results of soil geotechnical laboratory tests in the landslide-prone zone in Talamau District, West Pasaman Regency, it can be concluded that the soil sample has moderate plasticity characteristics with a Liquid Limit of 59.39%, Plastic Limit of 49.77%, and Plasticity Index of 9.62%. The soil reaches a maximum dry density of 1.37 gr/cm³ at an optimum water content of 500 ml, with a grain size distribution dominated by the sand fraction (83.978% retained on sieve No. 4-20) and a very low fine material content (1.234%). The results of the triaxial test showed soil behavior that varied from brittle to strain-hardening depending on the level of cell stress. Overall, the soil can be classified as well-graded sand with good drainage but low cohesion, thus requiring additional stabilization for construction applications in landslide-prone areas.
Co-Authors -, Amrizal Saidi AA Sudharmawan, AA Abdul Hakam Abinight, Akbaar Ade Kurnia Putri Adhadi Kurniawan Aditya Abdi Pratama Ahmad Junaidi Ahmad Junaidi Ahmad Junaidi Ahmad, Dzakwan Fathullah Akhmad Suraji Alfito Alfito Amrizal Saidi Andriani Andriani Andriani Setiawan Andrizky Andrizky Aprisal Aprisal, Aprisal Ari Syaiful Rahman Arifin Arian Dodi Bayu Martanto Adji, Bayu Martanto Benny Hidayat Benny Hidayat Boy, Wendy Bujang Rusman Cindy Murdiaman Guci Daoed, Darwizal Dasril Dasril Desirwan, Haikal Fikri Elvi Roza Syofyan Farah Sahara Farid Akmal Fauzan Fauzan Fauzan . Fauzi Fauzi Febiana Maulani Febrin Anas Ismail Ferial, Rudy Firdaus Firdaus Firdaus Firdaus Fitria Yulia Geby Aryo Agista Giffari, Muhammad Al Gustia, Siti Rahmi Hadri, Ferdian Al Handayani, Yanolanda Suzantry Hendy Jaza, Muhamad James Hellyward Junaidi Junaidi Junaidi Junaidi Junaidi, Junaidi Khatab, Umar Laurency, Sonya Ostha Madjid, Tsabita Alliya Mahdi Mahdi Mahdi Mahdi, Mahdi Masdaf, Nofra Mayuli Mochammad Imron Awalludin Muhamad Arifin Muhammad Al Giffari Narny, Yenny Nofrizal Nurhamidah, Nurhamidah Ophiyandri, Taufika Ophiyandri, Taufika Rahmad Yuhendra Rahmi, Yosa Anggia Rasyid, Fadillah Revalin Herdianto Revalin Herdianto Ridha Sari Rina Yuliet, Rina Rinaldi Ekaputra Rinaldi Ekaputra RR. Ella Evrita Hestiandari Sakri, Harfa Saputra, Dendi Sari, Ridha Sonata MS, Herix Sunaryo, Budi Taufika Ophyandri Umar Khatab Wahyu Putra Utama Winda Fitria Yervi Hesna Yolla Fransiska Yossafra, Yossafra Yuliza, Yenni Zis, Sirajul Fuad