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All Journal CIVED (Journal of Civil Engineering and Vocational Education) JOIV : International Journal on Informatics Visualization RACIC : Rab Construction Research Jurnal Rekayasa Sipil Jurnal Ilmiah Rekayasa Sipil Journal of Applied Agricultural Science and Technology Journal of Civil Engineering and Vocational Education
Daoed, Darwizal
Universitas Andalas
Agriculture, Biological Sciences & Forestry Civil Engineering, Building, Construction & Architecture Computer Science & IT Education Engineering Environmental Science Transportation

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Journal : Journal of Applied Agricultural Science and Technology

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Study on The Causes of Flooding in Batang Mahat, Lima Puluh Kota Regency, West Sumatera Junaidi Junaidi; Darwizal Daoed; Diva Syandriaji
Journal of Applied Agricultural Science and Technology Vol. 7 No. 2 (2023): Journal of Applied Agricultural Science and Technology
Publisher : Green Engineering Society

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55043/jaast.v7i2.161

Abstract

This research is located in Batang Mahat Lima Puluh Kota Regency, about 9.26 km2 from the narrowing location at Batu Kisok to the upstream, prone to flood. Due to several flooding events in Batang Mahat, various assumptions and hypotheses have emerged regarding the causes of Batang Mahat flooding. This research analyses the causes of flooding in Batang Mahat using Steady Flow simulation in HEC-RAS 6.2 software. The result implies that two factors caused the flood: (1) The channel capacity is insufficient to accommodate flood water discharge, where the simulation results shown at the Q50 discharge (2003.07 m3/s) flood inundated several areas in cross-sections upstream and tributary. (2) The impact of the narrowing location at the river channel in Batu Kisok, which is shown by the simulation of a decrease in water elevation at eight cross-sections at the upstream and two cross-sections at the tributary after the cross-sections in Batu Kisok are widened from ±30 m to ±45 m (50%), ±60 m (100%), and ±75 m (150%).
Co-Authors Ahmad Junaidi Bambang Istijono, Bambang Bayu Budi Irawan Benny Hidayat Bujang Rusman Diva Syandriaji Ferial, Rudy Junaidi, Junaidi Liza Sartika Muhamad Dwiko Febriansyah Nurhamidah, Nurhamidah Ozzy Pratiwi Rafika Andari Regi Citra Pesela Septi Wila Zarinda Silta Yulan Nifen Sunaryo, Budi Syarief Hidayatullah Syukur, Masril Vionadwiuchtia Idrat Wahyu Putra Utama Yayan Oktiawan Yossyafra Yossyafra