Jurnal Konstruksi
Vol 21 No 1 (2023): Jurnal Konstruksi

Analisis Perbandingan Curah Hujan dan Debit Banjir di Das Citanduy Hulu Bendungan Leuwikeris

Sulwan Permana (Sekolah Tinggi Teknologi Garut)
Bambang Haidar Dwiyanto (Institut Teknologi Garut)



Article Info

Publish Date
31 May 2023

Abstract

The Citanduy River, which is located in the East Priangan Region in West Java Province, recently during the rainy season, very high rainfall, long duration of rain, and uneven distribution of rain have caused flooding problems in several places, especially in the Tasikmalaya Regency, Ciamis, Banjar City, and Pangandaran Regency. Floods and landslides often occur in the upper reaches of the river, such as in the Tanjungsari area, Sukaresik District. Meanwhile, downstream, residents experienced flooding caused by the overflow of the Citanduy River, such as in the Sindangreja, Wanareja, Lakbok and surrounding areas. This study aims to obtain a comparative value of rainfall intensity in the upstream Citanduy watershed area to the Leuwikeris Dam using the Talbot, Sherman, and Ishiguro method, while the flood discharge uses the Nakayasu method. Based on the results of the comparative analysis of rainfall intensity calculations, the Ishiguro method is the most effective method used in calculating rainfall intensity with a value of 938.82 mm/hour in 2008-2014 and in 2015-2021 of 1126.74 mm/hour . Comparison of flood discharge for a return period of 2 years obtained results of 193.94 m3/second in 2008-2014 and in 2015-2021 obtained results of 232.77 m3/second, so from the results of calculating the comparison of flood discharges it can be concluded that the flood discharge in 2015-2021 is greater than the flood discharge in 2008-2014.

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Journal Info

Abbrev

konstruksi

Publisher

Subject

Civil Engineering, Building, Construction & Architecture

Description

Jurnal Kosntruksi yang dapat menampung dan mempublikasikan hasil karya penelitian, karya tulis dan pengabdian masyarakat baik mahasiswa dan dosen-dosen intern maupun dari pihak luar. Jurnal Konstruksi memberikan informasi yang diperoleh dari laboratorium dan workshop penelitian maupun dari lapangan/ ...