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All Journal Astonjadro Ranah Research : Journal of Multidisciplinary Research and Development
Nurdyansyah, Haris
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Analysis of the Effect of the Use of Sudetan Pipe Tunnels on the Water Level of the Ciliwung River and Cipinang River, East Jakarta Nurdyansyah, Haris; Desy, Natsar; Gusty, Sri
ASTONJADRO Vol. 14 No. 2 (2025): ASTONJADRO
Publisher : Universitas Ibn Khaldun Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32832/astonjadro.v14i2.17845

Abstract

Ciliwung River is one of the 13 major rivers in Jakarta that causes flooding, especially in the East Jakarta area. In an effort to reduce flooding along the Ciliwung River in the DKI Jakarta area, efforts were made to divert part of the Ciliwung River flow during floods to the East Flood Canal channel through the construction of a double pipe tunnel commonly called a sudetan in the Bidara Cina Village area, where the tunnel also passes through the Cipinang River as a diversion of discharge from the Cilwung River. The purpose of this study is to determine the effect of the sudetan pipe tunnel on the water level of Ciliwung River and Cipinang River. In this study, we will model the water level of Ciliwung River and Cipinang River to see the diversion of discharge into the sudetan pipe tunnel to reduce the overflow of water around Ciliwung River and Cipinang River. The method of this research is done by quantitative descriptive method to the value of water level in Ciliwung River and Cipinang River before the sudetan tunnel and after the sudetan tunnel and looking for comparison by using rating curve. The results of this study are based on the modeling analysis of the maximum flood discharge that can be accommodated by the ciliwung river before the existence of the sewer pipe tunnel in Q1 of 323 m3 / s there is an increase after the sewer pipe tunnel which is 539 m3 / s. It can be seen that the use of a sewer pipe tunnel can reduce the flood water level by 4 meters. It can be seen that the use of tunnel pipes can reduce the elevation of flood water up to 4 meters. Obtained for the ciliwung discharge of the return period Q1=323 m3/det Q2=377.66 m3/det Q5=433 m3/det Q10=462.45 Q25=493.52 m3/det Q50=518.83 m3/det Q100=539.62 m3/det.
Model Terowongan Pipa Sudetan Ciliwung-Cipinang dalam Mitigasi Banjir Kali Ciliwung dengan Metode HEC-RAS ver.6.3 Makkaraka, Muhammad Lottong; Chaerul, Muhammad; Hasibuan, Parlindungan; Nurdyansyah, Haris; Pasorong, Erich Purnama
Ranah Research : Journal of Multidisciplinary Research and Development Vol. 7 No. 6 (2025): Ranah Research : Journal Of Multidisciplinary Research and Development
Publisher : Dinasti Research

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.38035/rrj.v7i6.1749

Abstract

Penelitian ini bertujuan untuk menganalisis model terowongan pipa sudetan ciliwung cipinang dalam melakukan mitigasi kali ciliwung. Dalam memodelkan terowongan peneliti menggunakan aplikasi HEC-RAS 6.3 untuk membuat aligment terowongan yang meliputi penampang terowongan (cross section) dan (long section) serta memasukan debit banjir Q2th, Q5th, Q10th, Q25th, Q50th, dan Q100th. Penelitian ini menggunakan mix methode yaitu deskriptif kuantitatif, dengan memodelkan penampang terowongan serta memperhitungkan kondisi aliran bebas dan tertekan. Adapun dari hasil pemodelan penampang long section terowongan sudetan didapatkan nilai WS Q5 berada pada elevasi 7m, Q10 elevasi 12m, Q25 elevasi 13m, Q50 elevasi 15m, dan Q100 elevasi 16m. Adapun pada elevasi 9.67 m kondisi aliran bebas masih kategori stabil, elevasi rata-rata berada pada elevasi 11m Dimana kondisi aliran bebas ini masuk dalam kategori superkritis. Kesimpulan yang di peroleh dari keseluruhan Analisa data yaitu pada penampang long section terowongan didapatkan nilai tinggi muka air pada elevasi terendah yaitu pada Q5=7m dan nilai tinggi muka air pada elevasi tertinggi yaitu Q100=16m. Sehingga didapatkan bahwa terowongan pipa sudetan termasuk cara alternatif untuk melakukan mitigasi banjir khususnya pada lokasi kali ciliwung
Co-Authors Desy, Natsar Gusty, Sri Hasibuan, Parlindungan Makkaraka, Muhammad Lottong Muhammad Chaerul Pasorong, Erich Purnama