ANALISIS BANJIR MENGGUNAKAN SOFTWARE HEC-RAS 4.1.0 (Studi Kasus Sub-DAS Ciberang HM 0+00 – HM 34+00)
| Main Author: | MUTIA, TIA |
|---|---|
| Format: | Thesis NonPeerReviewed Book |
| Bahasa: | ind |
| Terbitan: |
, 2016
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| Subjects: | |
| Online Access: |
https://eprints.untirta.ac.id/11780/1/ANALISIS%20BANJIR%20MENGGUNAKAN%20SOFTWARE%20HEC-RAS%204.1.0%20%28STUDI%20KASUS%20SUB-DAS%20CIBERANG%20HM%200%2B00%20-%2034%2B00%29.PDF https://eprints.untirta.ac.id/11780/ |
Daftar Isi:
- Flood is one of the natural phenomenon that can be threatens the existence of human life in several regions in Indonesia especially in rainy season. Lebak regency is generally experienced floods every year, especially in the living area along the riverbanks. This is due to reduced capacity of the river so that the dimensions of river cross section are not able to accommodate the existing discharge and causing the overflow of Ciberang River. The purpose of this research is to know about the rate of the discharge flood in Ciberang River by using Q and to identify the flood-prone areas and also to give the solutions for any problems about flood in Ciberang River. viii 50 This research uses the secondary data in a form of the data in daily rainfall for 19 years and the cross-section dimensions of Ciberang sub-watersheds. The result of the count rains plan with a return period of 50 years is 105.875 mm, rain with the 6 hours durations there’s on the peak position on the third hour is 57.713 mm, while the discharge plan with the method of SCS obtained the peak discharge value is 523.174 m 3 /s and while using HSS Snyder method, it is obtained the peak discharge value is 1228.162 m 3 /s, the next step is using HEC-RAS 4.1.0 software to determine the carrying capacity of the river by using discharge flood Snyder. After analyze using the software, the sub-watershed of Ciberang River cannot accommodate the rate flow that occurred, therefore the rivers need an improvements in the form of normalization and raising the levee river.