Sindy Witari, - (2024) STUDI KINERJA TWIN TUNNEL NANJUNG DALAM UPAYA PENANGANAN BANJIR SUNGAI CITARUM. S1 thesis, Universitas Pendidikan Indonesia.
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Abstract
Indonesia berisiko tinggi terhadap bencana alam seperti banjir, yang terutama mempengaruhi wilayah Jawa Barat. Banjir sering terjadi karena debit aliran yang tinggi dan kapasitas tampung badan air yang terlampaui, dipicu oleh curah hujan dan pertumbuhan penduduk. Kota-kota besar di Jawa Barat, rawan banjir akibat aliran sungai Citarum. Masalah banjir diperburuk oleh penyempitan sungai, drainase buruk, dan backwater, terutama di sekitar Citarum Hulu. Untuk mengurangi banjir di sekitar Citarum Hulu maka di bangun Twin Tunnel Nanjung. Karena itu peneliti tertarik untuk meninjau lebih jauh mengenai kinerja dan efektifitas dibangunnya Twin Tunnel Nanjung untuk penanganan Citarum Hulu. Penelitian ini menggunakan metode deskriptif dengan pendekatan permodelan software HEC-RAS v6.5 dengan metode 2D. Dari hasil permodelan didapat bahwa setelah pemasangan Twin Tunnel Nanjung luas genangan banjir berkurang 64% dari 13.44 km2 menjadi 4.8 km2 dan kedalaman berkurang dengan rata-rata 2-3 m yang ditinjau di 5 titik di daerah Dayeuhkolot. Indonesia is at high risk of natural disasters such as flooding, which particularly affects the West Java region. Floods often occur due to high flow rates and exceeding the carrying capacity of water bodies, triggered by rainfall and population growth. Major cities in West Java are prone to flooding due to the flow of the Citarum river. The flooding problem is exacerbated by river constriction, poor drainage, and backwater, especially around the Upper Citarum. To reduce flooding around the Upper Citarum, the Nanjung Twin Tunnel was built. Therefore, the researcher is interested in further reviewing the performance and effectiveness of the Twin Tunnel Nanjung for handling the Upper Citarum. This research uses descriptive method with HEC-RAS v6.5 software modeling approach with 2D method. From the modeling results, it is found that after the installation of Twin Tunnel Nanjung, the flood inundation area is reduced by 64% from 13.44 km2 to 4.8 km2 and the depth is reduced by an average of 2-3 m in 5 points in Dayeuhkolot area.
| Item Type: | Thesis (S1) |
|---|---|
| Uncontrolled Keywords: | Banjir, Twin Tunnel Nanjung, Kinerja Flood, Twin Tunnel Nanjung, Performance |
| Subjects: | T Technology > T Technology (General) T Technology > TA Engineering (General). Civil engineering (General) |
| Divisions: | Fakultas Pendidikan Teknik dan Industri > Jurusan Pendidikan Teknik Sipil > Program Studi Teknik Sipil |
| Depositing User: | Sindy Witari |
| Date Deposited: | 11 Sep 2024 01:08 |
| Last Modified: | 11 Sep 2024 01:08 |
| URI: | http://repository.upi.edu/id/eprint/124014 |
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