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Detail Karya Ilmiah Dosen

Wahyu Gendam Prakoso, B. Rahman, Heny Purwanti, P. Irawan

Judul : Flood risk mapping of the Sukamahi Dam failure with overtopping scenario
Abstrak :

Sukamahi dam at Cisukabirus river, part of the upper Ciliwung watershed, located at Bogor  regency.  Sukamahi  dam  was  designed  for  flood  reduction  purposes,  especially  for  the downstream region, e.g., City of Bogor, Bogor regency, City of Depok, and Jakarta. Sukamahi dam  will  give  flood  reduction  13.53  m3/s  with  probability  exceeded  2  %,  and  time  to concentration (tc) for peak discharge (Qp) at least 4 hours longer than existing condition. Despite providing the benefits of flood control, the construction of dams also has the potential to increase the risk, i. E if a dam fails due to overtopping. Based on the Sukamahi dam flood failure scenario, dam failure has the potential to occur if the bottom outlet ( tunnel) and spillway fail when flood discharge with a 1000 year return period or more occur. Modeling of Sukamahi dam failure using 2 D HEC-RAS with unsteady flow analysis from sta 0 + 000 to STA 8 + 500 produces a map of inundation area of 36.89 Ha. The flood flow velocity is reaching 8.43 m/sec with a maximum flood flow depth of 69.72 m.

Tahun : 2020 Media Publikasi : Jurnal Internasional
Kategori : Jurnal No/Vol/Tahun : doi:10.1088/1755-1315/622/1/012006 / 000 / 2020
ISSN/ISBN : 0000
PTN/S : Universitas Pakuan Program Studi : TEKNIK SIPIL
Bibliography :

Sukamahi dam at Cisukabirus river, part of the upper Ciliwung watershed, located at Bogor  regency.  Sukamahi  dam  was  designed  for  flood  reduction  purposes,  especially  for  the downstream region, e.g., City of Bogor, Bogor regency, City of Depok, and Jakarta. Sukamahi dam  will  give  flood  reduction  13.53  m3/s  with  probability  exceeded  2  %,  and  time  to concentration (tc) for peak discharge (Qp) at least 4 hours longer than existing condition. Despite providing the benefits of flood control, the construction of dams also has the potential to increase the risk, i. E if a dam fails due to overtopping. Based on the Sukamahi dam flood failure scenario, dam failure has the potential to occur if the bottom outlet ( tunnel) and spillway fail when flood discharge with a 1000 year return period or more occur. Modeling of Sukamahi dam failure using 2 D HEC-RAS with unsteady flow analysis from sta 0 + 000 to STA 8 + 500 produces a map of inundation area of 36.89 Ha. The flood flow velocity is reaching 8.43 m/sec with a maximum flood flow depth of 69.72 m.

URL : https://intl-conference.com/iscee2020/

 

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