Article Per Year (5 Year)
p-Index From 2021 - 2026
2.162
P-Index
This Author published in this journals
All Journal KURVA S JURNAL MAHASISWA Kurva S : Jurnal Keilmuan dan Aplikasi Teknik Sipil Zero : Jurnal Sains, Matematika, dan Terapan JURNAL PENDIDIKAN TAMBUSAI Journal of Applied Science, Engineering, Technology, and Education Jurnal Teknik Industri Terintegrasi (JUTIN) International Journal of Humanities Education and Social Sciences Jurnal Abdimas Lamin
Viva Oktaviani, Viva
Unknown Affiliation
Agriculture, Biological Sciences & Forestry Humanities Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Mathematics Mechanical Engineering Physics Social Sciences Other

Published : 21 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 21 Documents
Search

 1   2   3 
Hydraulic Diagnosis of Urban Flood Mechanisms using HEC-RAS: A Case Study of the Bontang River, Indonesia Viva Oktaviani; Heri Purnomo
ZERO: Jurnal Sains, Matematika dan Terapan Vol 10, No 2 (2026): Zero: Jurnal Sains Matematika dan Terapan
Publisher : UIN Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30829/zero.v10i2.29945

Abstract

Flooding along the Bontang River in Gunung Telihan Village, Bontang City, recurs almost annually, yet its causes had not been diagnosed mechanistically. This study applied one dimensional steady-flow HEC-RAS 4.1 modeling to a 1,936 m reach, using primary topographic data and design discharges (Q2, Q10, Q20) from the Nakayasu Synthetic Unit Hydrograph. Unlike prior single mechanism studies, the analysis resolved four co occurring flood mechanisms: bank-asymmetry overflow, right bank levee overflow, undersized sluice-gate backwater, and a downstream constriction. Although nominal channel capacity (13.83 m3/s) marginally exceeded Q2 (11.88 m3/s), the low right bank reduced the effective overflow threshold below Q2. A 95% confidence interval on design discharge, computed using Kite's asymptotic method, indicated the downstream constriction could approach overflow at the upper bound of Q10 uncertainty. An independent tidal sensitivity check showed the tidal range effect at the confluence (2.2 m) exceeded the sluice-gate backwater step alone (0.42-0.68 m). A planned condition simulation combining retention ponds, levee reinforcement, and gate augmentation achieved safe status at all critical points, indicating site differentiated intervention is a promising, land feasible direction pending detailed design verification.
Co-Authors ABDUL TALIB, ABDUL Adelia Farahdita Maharani Esanugraha, Dettry ESWAN, TUKIMUN, Heri Purnomo Heri Purnomo MARZUKI, ROBBY Musrifah Musrifah, Musrifah Prawoto, Alif Rony, Zahara Tussoleha Suharto Suharto Suharto Suharto Suharto Suharto Suharto, Harto Sulistyono, Rudi TOHIR, MUSRIFAH Wulandari, Chintia Agustina Yayuk Sri Sundari