STUDI KINERJA KOLAM RETENSI FAJAR INDAH DAN JATILUHUR SEBAGAI PENGENDALIAN BANJIR KOMPLEK FAJAR INDAH

    Farhan Trianda Utomo, - and Odih Supratman, - (2025) STUDI KINERJA KOLAM RETENSI FAJAR INDAH DAN JATILUHUR SEBAGAI PENGENDALIAN BANJIR KOMPLEK FAJAR INDAH. S1 thesis, Universitas Pendidikan Indonesia.

    Abstract

    Komplek Fajar Indah yang terletak di wilayah dataran rendah Kota Bekasi Barat yang sering dilanda banjir saat musim hujan datang. Banyak usaha penanggulangan banjir yang dilakukan pemerintah, salah satunya adalah pembuatan Kolam Retensi Fajar Indah dan Kolam Retensi Jatiluhur yang berada di komplek Fajar Indah. Namun setelah dibangunya Kolam Retensi Fajar Indah dan Kolam Retensi Jatiluhur masih sering terjadi banjir di Komplek Fajar Indah hingga kini. Oleh karena itu perlu dilakukan penelitian lebih lanjut mengenai Kolam Retensi Fajar Indah dan Kolam Retensi Jatiluhur, apakah Kolam Retensi Fajar Indah dan Kolam Retensi Jatiluhur yang telah dibangun telah sesuai dengan salah satu fungsinya yakni mereduksi banjir di kawasan komplek Fajar Indah. Analisis yang dilakukan yakni perhitungan curah hujan wilayah, curah hujan rencana dan dilakukanya perhitungan debit banjir dengan bantuan perangkat lunak HEC-HMS 4.7.1. Didapatkan puncak debit banjir rencana berturut – turut dengan kala ulang Q2, Q5, Q10, Q20, Q25, dan Q50 sebesar 44.10 m3/s, 87.90 m3/s, 117.8 m3/s, 146.70 m3/s, 156 m3/s, 184.4 m3/s. Selanjutnya dilakukan pemodelan embung pada perangkat lunak HEC-RAS 6.5 untuk mendapatkan kondisi genangan di wilayah Komplek Fajar Indah. Dari hasil pemodelan didapatkan hasil Kolam Retensi Fajar Indah dan Kolam Retensi Jatiluhur dapat mereduksi banjir sebesar 18,71% dan menunjukkan bahwa setelah dibangunnya Kolam Retensi Fajar Indah dan Kolam Retensi Jatiluhur masih terjadi genangan di beberapa titik di wilayah Komplek Fajar Indah. Dengan berbagai pertimbangan, dibuat penanggulangan banjir lanjutan dengan pembuatan tanggul pada titik – titik mula terjadinya luapan. The Fajar Indah Complex, located in the low-lying area of West Bekasi City, is often hit by flooding during the rainy season. The government has implemented numerous flood mitigation efforts, one of which is the construction of the Fajar Indah Retention Pond and the Jatiluhur Retention Pond within the Fajar Indah Complex. However, despite the construction of these retention ponds, flooding in the Fajar Indah Complex continues to occur frequently to this day. Therefore, further research is needed on the Fajar Indah Retention Pond and Jatiluhur Retention Pond to determine whether the retention ponds that have been built are fulfilling one of their functions, namely reducing flooding in the Fajar Indah complex area. The analysis conducted included calculating the regional rainfall, planned rainfall, and flood discharge using HEC-HMS 4.7.1 software. The planned flood discharge peaks were obtained with return periods of Q2, Q5, Q10, Q20, Q25, and Q50, were 44.10 m³/s, 87.90 m³/s, 117.8 m³/s, 146.70 m³/s, 156 m³/s, and 184.4 m³/s, respectively. respectively. Subsequently, reservoir modelling was performed using HEC-RAS 6.5 software to determine the flooding conditions in the Fajar Indah Complex area. The modelling results showed that the Fajar Indah Retention Pond and Jatiluhur Retention Pond could reduce flooding by 18,71% and indicated that flooding still occurred at several points in the Fajar Indah Complex area after construction Fajar Indah Retention Pond and Jatiluhur Retention Pond. After careful consideration, further flood control measures were implemented by constructing embankments at the points where the overflowing began.

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    Official URL: https://repository.upi.edu/
    Item Type: Thesis (S1)
    Additional Information: SINTA ID DOSEN PEMBIMBING Odih Supratman: 5995373
    Uncontrolled Keywords: Kali Baru, Banjir, Pengendalian, Kolam Retensi, HEC-RAS Kali Baru, Flood, Control, Water Retention, HEC-RAS
    Subjects: T Technology > TC Hydraulic engineering. Ocean engineering
    Divisions: Fakultas Pendidikan Teknik dan Industri > Jurusan Pendidikan Teknik Sipil > Program Studi Teknik Sipil
    Depositing User: Farhan Farhan Trianda Utomo
    Date Deposited: 10 Oct 2025 06:50
    Last Modified: 10 Oct 2025 06:50
    URI: http://repository.upi.edu/id/eprint/141199

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