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ANALYSIS OF DRAINAGE CHANNEL CAPACITY IN CIREMAI RAYA, LARANGAN SUB-DISTRICT OF CIREBON CITY Akbar Winasis; Ohan Farhan; Heri Mulyono
Journal of Green Science and Technology Vol 5 No 1 (2021): JOURNAL OF SCIENCE AND TECHNOLOGY VOL. 5 NO. 1 MARCH 2021
Publisher : Faculty of Engineering, Universitas Swadaya Gunung Jati

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33603/jgst.v5i1.4907

Abstract

The perumnas gunung area is one of the areas in the Larangan sub-district, Harjamukti Subdistrict, Cirebon City, whose drainage system greatly disturbs the activities of the population in Cirebon City because when heavy rain causes the high volume of water in the drainage so that it comes out to the highway and is very disturbing it can also cause congestion.To solve the problem of inundation and flooding, it requires maximum rainfall data, population density data and hydraulic data from direct observation at the research location. From the rainfall data, the intensity of the rainfall is calculated, then the standard deviation is calculated to get the return period value using the Gumble formula. From the calculation of the Return Period, the calculation of the flood discharge is carried out using a rational method and calculating the discharge of the existing channel. Calculation of the capacity of the existing channel discharge is carried out by calculating the discharge of rainwater and discharge of household wastewater.From the calculation of Hydrology and Hydraulics, the value of Rainfall Intensity is 46.632 mm / day, the overall channel discharge = 0.603 m3 / s, the calculation of the total discharge from household wastewater and rainwater discharge for the 2-year return period is 0.0076 m3 / s. . From the calculation results, the authors conclude that the dimensions of the existing canal can still accommodate the flow of rainwater and household wastewater. The solution to overcome flood inundation on Jalan Ciremai Raya, it is necessary to normalize the drainage channel so that the drainage channel can function properly.
PERFORMANCE ANALYSIS OF IRRIGATION AREA IN PEMALI BREBES Muhamad Salman Salahuddin; Saihul Anwar; Heri Mulyono
Journal of Green Science and Technology Vol 4 No 3 (2020): JOURNAL OF GREENSCIENCE AND TECHNOLOGY, VOL.4 NO.3 (2020)
Publisher : Faculty of Engineering, Universitas Swadaya Gunung Jati

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33603/jgst.v4i3.4940

Abstract

Irrigation Area Pemali comprised in the district of Banjarharjo Brebes Center Java, the located Approximately less than 50 km from Cirebon and 40 km from Bradford Center Java, and exist some villages such as, Cikakak, Coral Maja, Tiwulandu Village in East and Tonjong, shovel , Gandol in West.Irrigation Area Pemali duct have the name is the Regional Master Irrigation Pemali or named DI Jangkelok Hilir. At first, the water Able to dilute more less 6677ha but in this time only more less 6349ha, the trouble is the diversion of the use of land. This Pemali irrigation area was built in the years 1901 - 1904. The irrigation areas of irrigation area Pemali supply six kemantren such as Kemantren Cibendung, Kemantren Bantarsari, Kemantren Losari Upstream, Downstream Losari Kemantren, Kemantren Kubangjero, and Kemantren Rungkang. The purpose of this research is Become a reference from evaluation of performance of the irrigation area in irrigation area Pemali by analyzing the physical condition of building Although duct in the irrigation area of the Regional Irrigation Pemali, analyzing of human resource in the irrigation area of the Regional Irrigation Pemali, analyzing of rain Hydrology in the irrigation area of the Regional Irrigation Pemali, analyzing of income from weir Cibendong, analyzing of the patterns plants in the irrigation area of the Regional Irrigation Pemali, and analyzing planning plant and the realization of planting in the irrigation area of the Regional Irrigation Pemali. The method of this research is qualitative method, in the which the fission of the problem is explained that the subject or the object of research based on the facts roomates used during doing the research in the performance of irrigation system and try to make a good relation in deep from the aspects particularly subject. Based on the build irrigation condition in this area is classified as satisfactory with percentage of damage Reached 11.30%. Meanwhile, the duct condition in this irrigation area irrigation area is good Pemali classified with percentage of damage Reached 8.21%. The condition of the organizer in DI Jangkelok available irrigation area Pemali only 51 people, while in needed is 67 people with less percentage Reached 17.94% so that service toward the duct condition is less completed and have the impact to net condition wake or less roomates always damaged, this situation should be increased.From the results of the analysis of the ratio of demand with available discharge effective discharge rainfall added Irrigation Area in Jengkelok, Cibendung Weir fulfilled, but many unused discharge it is Necessary to modify the cropping pattern in order to maximize the potential of available discharge. The planting realization in 7 years ago in the irrigation area Irrigation Area Jangkelok Pemali it is less from the planning plant, but in the period of 2011/2012 Occurs Increased 7.34% and the realization of planting intensity is average 243.77% while the average of planning plan is 268.91% Tus in the lower plant productivity in this case since it can not be done to planting in this wide area. Keyword: Irrigation, Performance Analysis, Regional Irrigation
ANALISIS PERENCANAAN DAN PENANGGULANGAN BANJIR STUDI KASUS SUNGAI CIBERES KAB. CIREBON Novan Ardiansyah; Heri Mulyono
Jurnal Konstruksi dan Infrastruktur : Teknik Sipil dan Perencanaan Vol 7 No 1 (2018): JURNAL KONSTRUKSI (JANUARI 2018)
Publisher : Civil Engineering Department, Faculty of Engineering, Universitas Swadaya Gunung Jati

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33603/jki.v7i1.3933

Abstract

ABSTRAKSungai Ciberes merupakan sungai yang selalu menjadi daerah langganan banjir, ini dikarenakanadanya pengendapan sedimentasi baik di hulu sungai maupun di darah muara sungai Ciberes, di sungaiCiberes ini terdapat bendung Waled.Permasalahan yang sering terjadi pada sungai ini yaitu dalam DAS ini sedimentasi sudah sangattinggi maka takheran apabila sungai ini selalu banjir, selain itu kurangnya kesadaran masyarakat yangmembuang limbah/sampah kedalam sungai yang tentunya akan berpotensi meningkatkan banjir yang ada,tingginya curah hujan dalam 2 tahun terakhirBerdasarkan hasil analisis diperoleh intensitas hujan yang tinggi dan debit yang sangat besar selainitu sungai Ciberes Kapasitas tampung sungai Ciberes saat ini adalah 48.2 m3/set, sedangkan menurut debitrencana yaitu adalah 173.8 m3/set, sehingga dapat kita ketahui sungai Ciberes berpotensi banjir. Dan halini perlu adanya kegiatan normalisasi sungai sehingga dampak banjir dapat di minimalisir.Kata kunci :Sedimentasi, Curah Hujan, Debit, BanjirABSTRACTCiberes River is a river that has always been a subscription area of the flood, this is due tosedimentation both upstream and in the river Ciberes estuary, the river Ciberes is contained Waled dam.The problem that often occurs in this river is in this watershed sedimentation is very high then theriver if the river is always flooded, other than that the lack of awareness of people who throw waste / wasteinto the river which would potentially increase the existing flood, high rainfall in 2 years the latterBased on the results of analysis obtained high rainfall intensity and very large discharge besidesCiberes River Capacity of Ciberes river current is 48.2 m3 / set, while according to the plan debit is 173.8m3 / set, so we can know Ciberes river potentially flood. And this is necessary for the normalization of theriver so that the impact of flooding can be minimized.Keywords : Sedimentation, Rainfall, Debit, Flood