Deby, Rachmat and Dr. Very Dermawan,, ST., MT. and Dian Sisinggih,, ST., MT., Ph.D. (2019) Analisis Genangan Banjir Sungai Wanggu Kota Kendari Provinsi Sulawesi Tenggara Dengan Menggunakan HEC-RAS 5.0.6. Magister thesis, Universitas Brawijaya.
Abstract
Penurunan kualitas Daerah Aliran Sungai menyebabkan terjadinya kekeringan di musim kemarau dan banjir di musim penghujan. Sebagai salah satu sungai utama yang melewati Kota Kendari, Sungai Wanggu mengalami permasalahan banjir yang disebabkan oleh ketidakmampuan sungai dalam menampung debit air pada saat musim penghujan. Kajian ini bertujuan untuk mengetahui kala ulang banjir yang pernah terjadi serta alternatif bangunan pengendalian banjir yang bisa dilakukan untuk menanggulangi genangan banjir. Hasil kajian menunjukan banjir yang terjadi pada Sungai Wanggu sebesar 330,21 m3/detik setara dengan debit banjir kala ulang 25 tahunan. Alternatif yang direkomendasikan untuk sistem pengendalian banjir Sungai Wanggu berdasarkan hasil analisis HEC-RAS 5.0.6 adalah melakukan kombinasi kegiatan normalisasi sungai dengan pembangunan tanggul banjir. Kombinasi ini mampu mereduksi genangan banjir 100 % dan mempunyai nilai B/C Ratio 1,74.
English Abstract
The decline in the quality of watersheds causes drought in the dry season and flooding in the rainy season. As one of the main rivers that passes through Kendari City, Wanggu River experiences flooding problems caused by the inability of the river to accommodate water discharge during the rainy season. This study aims to determine the return period of flooding that ever occurred as well as alternative flood control structures that can be done to overcome flood inundation. The results of the study showed that flooding that occurred in the Wanggu River was 330,21 m3/second equal to flood discharge of 25 years return period. The recommended alternative for the Wanggu River flood control system based on the results of the analysis of HEC-RAS 5.0.6 is to combine river normalization activities with the construction of flood dikes. This combination can reduce flood inundation 100% and has a value of B/C Ratio 1,74.
| Item Type: | Thesis (Magister) |
|---|---|
| Identification Number: | TES/627.4/DEB/a/2019/041903004 |
| Uncontrolled Keywords: | Sungai, Pengendalian banjir, HEC-RAS 5.0.6, Reduksi, B/C Ratio,River, Flood control, HEC-RAS 5.0.6, Reduction, B/C Ratio. |
| Subjects: | 600 Technology (Applied sciences) > 627 Hydraulic engineering > 627.4 Flood control |
| Divisions: | S2/S3 > Magister Teknik Pengairan, Fakultas Teknik |
| Depositing User: | soegeng sugeng |
| Date Deposited: | 12 Aug 2022 02:18 |
| Last Modified: | 12 Aug 2022 02:19 |
| URI: | http://repository.ub.ac.id/id/eprint/193190 |
![[thumbnail of RACHMAT DEBY.pdf]](http://repository.ub.ac.id/style/images/fileicons/text.png) |
Text
RACHMAT DEBY.pdf Download (15MB) |
Actions (login required)
 |
View Item |