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All Journal Journal of the Civil Engineering Forum Civil Engineering Dimension Media Ilmiah Teknik Sipil Jurnal Kreativitas PKM Bulletin of Civil Engineering Prosiding Seminar Nasional Program Pengabdian Masyarakat
Ani Hairani
Universitas Muhammadiyah Yogyakarta
Agriculture, Biological Sciences & Forestry Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Economics, Econometrics & Finance Environmental Science Health Professions Medicine & Pharmacology Nursing Public Health Social Sciences

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Journal : Media Ilmiah Teknik Sipil

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Studi Pengaruh Kejadian Hujan Terhadap Banjir Lahar Di Sungai Gendol Menggunakan SIMLAR: Study Of The Effect Of Rain Incidence On Debris Flow In The Gendol River Using SIMLAR Jazaul Ikhsan; Azqia Dara Adam; Ani Hairani
Media Ilmiah Teknik Sipil Vol. 11 No. 1 (2023): Media Ilmiah Teknik Sipil
Publisher : ​Institute for Researches and Community Services Universitas Muhammadiyah Palangkaraya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33084/mits.v11i1.3975

Abstract

Indonesia is a country with the largest number of active volcanoes in the world and has the potential to erupt. This causes primary and secondary disasters, one of which is secondary disasters caused by lava floods during heavy rains. So disaster mitigation is needed by simulating lava floods to find out the predictions of speed, volume, height and area affected by lava floods. The simulation was carried out using SIMLAR software, carried out on Gendol River which is one of the watersheds that has the threat of lahar flooding. The test was carried out with 3 hyetograph patterns and for each pattern there were 3 simulations with different rainfall intensities, namely 162 mm, 243 mm and 324 mm. From these tests, the speed values ​​in patterns 1, 2 and 3 increased each simulation to the existing simulation. The speed value obtained by pattern 1 at 162 mm rain intensity is 2.35 m/s, at 243 mm rain intensity is 2.48 m/s, and at 324 mm rain intensity is 2.58 m/s. In addition, at high yields, volume and area also increase in each simulation due to the higher rainfall intensity. This proves that the intensity of rain is directly proportional to speed, volume, area and height. In addition, the hyetograph pattern also affects the peak hours when the maximum volume, maximum height and maximum speed are reached.
Co-Authors Adam Pamudji Rahardjo Agus Setyo Muntohar Anselma Diksita Prajna Duhita Azqia Dara Adam Burhan Barid Djoko Legono Farid Nur Bahti Jazaul Ikhsan Muhamad Hafidzudin Ichsan Muhammad Fikri Permana Nadia Kumala Sari Nursetiawan Nursetiawan