Analysis of Bolifar River Flood Protection in East Seram Regency, Indonesia
Agung Tahta Hidayatullah1, Farouk Maricar2, Rita Tahir Lopa3
1Agung Tahta Hidayatullah, Department of Civil Engineering, Faculty of Engineering, University of Hasanuddin, Makassar, Indonesia.
2Farouk Maricar, Department of Civil Engineering, Faculty of Engineering, University of Hasanuddin, Makassar, Indonesia.
3Rita Tahir Lopa, Department of Civil Engineering, Faculty of Engineering, University of Hasanuddin, Makassar, Indonesia.
Manuscript received on 01 February 2019 | Revised Manuscript received on 07 February 2019 | Manuscript Published on 13 February 2019 | PP: 54-58 | Volume-8 Issue- 4S February 2019 | Retrieval Number: DS2832028419/2019©BEIESP
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© The Authors. Blue Eyes Intelligence Engineering and Sciences Publication (BEIESP). This is an open-access article under the CC-BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)
Abstract: Flood is a natural phenomenon that is destructive, both in terms of material and loss of life. Floods can come from overflowing rivers. One of the rivers that often experience a flood is the Bolifar River located in Maluku Province, Indonesia. This study aims to determine the flood discharge, water level and determine the dimension of the embankment as one of the efforts of flood control. The topography measurement of the Bolifar River is conducted, then obtaining rainfall data, watershed characteristics, and soil mechanics examination. The flood discharge is calculated with Hidrograf Unit Synthetic (HSS) Nakayasu method. The return period Q2Tahun = 341,446 m³ / sec, return period Q5Tahun = 433,956 m³ / sec, return period Q10Tahun = 486,583 m³ / sec, and return period Q20Tahun = 521,211 m³ / sec and with hydraulic calculations resulted in a flood water level of 2.6 meters from the river bed. From the calculation result, the dimension of embankment with h = 2.5 meters, width of the embankment = 4 meters, and the slope ratio of 1: 1.5 where the embankment is planned to be stable against bolsters, stable to the soil support force and the slop stability is quite safe.
Keywords: Embankment, Flood Control, HSS, Rainfall, Topography Measurement.
Scope of the Article: Computational Techniques in Civil Engineering