ALTERNATIF PEMILIHAN TIPE PEREDAM ENERGI PADA SPILLWAY BENDUNGAN KARIAN, LEBAK - BANTEN
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Institusion
Institut Teknologi Perusahaan Listrik Negara
Author
Sholikhah, Faizatus
Pantouw, John Paulus
Pantouw, John Paulus
Subject
Teknik Sipil
Datestamp
2019-10-07 05:57:02
Abstract :
Since the 1970s, industrial development and urbanization in Jakarta, Bogor, Tangerang and Bekasi ("JABOTABEK") have developed rapidly. So as to encourage rapid increase in city and industrial water needs. Through JWRMS, the Indonesian government has set a master plan for urban and industrial water supply, one of which is by building the Karian dam. In the Karian dam section it is determined to use flip bucket and plunge pool type energy absorbers. Which in this study, is given an alternative selection of energy absorbers with type USBR I, II, III, IV. And use rainfall data from 2006-2017. Based on the results of the analysis of calculations that have been done to get the 1000-year return inflow debit of 1,427.96 m3 / sec and the return period for PMF of 3,898.54 m3 / sec, the return flow of 1000 years is 247.63 m3 / sec and PMF return period is 1,056.02 m3 / sec. Selection of the type of energy reducer calculated by the Froude number in Q1000 is 2,632 and for QPMF is 2,612. From the froude results obtained by both of them are entered into the USBR Type IV qualification. The energy reducer with 1000 year return period is planned with d1 = 0,722 m, d2 = 3,077 m, floor length (L) = 11,513 m, and 19 chute blocks are installed, downstream end threshold = 0,722 m and guard height (h) amounting to 0,935 m. Whereas for PMF return period, the depth of d1 = 2,350 m, d2 = 5,661 m, floor length (L) = 28,307 m, chute block installed as much as 4 pieces, downstream threshold = 3,385 m, height of guard (h) = 2,429 m.
Since the 1970s, industrial development and urbanization in Jakarta, Bogor, Tangerang and Bekasi ("JABOTABEK") have developed rapidly. So as to encourage rapid increase in city and industrial water needs. Through JWRMS, the Indonesian government has set a master plan for urban and industrial water supply, one of which is by building the Karian dam. In the Karian dam section it is determined to use flip bucket and plunge pool type energy absorbers. Which in this study, is given an alternative selection of energy absorbers with type USBR I, II, III, IV. And use rainfall data from 2006-2017. Based on the results of the analysis of calculations that have been done to get the 1000-year return inflow debit of 1,427.96 m3 / sec and the return period for PMF of 3,898.54 m3 / sec, the return flow of 1000 years is 247.63 m3 / sec and PMF return period is 1,056.02 m3 / sec. Selection of the type of energy reducer calculated by the Froude number in Q1000 is 2,632 and for QPMF is 2,612. From the froude results obtained by both of them are entered into the USBR Type IV qualification. The energy reducer with 1000 year return period is planned with d1 = 0,722 m, d2 = 3,077 m, floor length (L) = 11,513 m, and 19 chute blocks are installed, downstream end threshold = 0,722 m and guard height (h) amounting to 0,935 m. Whereas for PMF return period, the depth of d1 = 2,350 m, d2 = 5,661 m, floor length (L) = 28,307 m, chute block installed as much as 4 pieces, downstream threshold = 3,385 m, height of guard (h) = 2,429 m.
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