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All Journal Jurnal Teknik Sipil dan Perencanaan Wahana Teknik Sipil: Jurnal Pengembangan Teknik Sipil Syntax Literate: Jurnal Ilmiah Indonesia Journal of Green Science and Technology Jurnal Sosial dan Teknologi Journal Of World Science Jurnal Locus Penelitian dan Pengabdian INJURITY: Journal of Interdisciplinary Studies Indonesian Journal of Advanced Research (IJAR) Jurnal Civil Engineering Study Jurnal Konstruksi dan Infrastruktur : Teknik Sipil dan Perencanaan International Journal of Mechanical, Electrical and Civil Engineering Journal of Green Science and Technology
Ohan Farhan
Fakultas Teknik Universitas Swadaya Gunung Jati Cirebon Jawa Barat, Indonesia
Aerospace Engineering Humanities Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Engineering Environmental Science Health Professions Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Mathematics Public Health Social Sciences Transportation Other

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Journal : Journal of Green Science and Technology

 1 
THE PERFORMANCE ANALYSIS OF IRRIGATION AREA OF CIBENDUNG WEIR OF BREBES REGENCY Nur Azis Zain; Ohan Farhan
Journal of Green Science and Technology Vol 1 No 1 (2017): Journal of Green Science and Technology
Publisher : Faculty of Engineering, Universitas Swadaya Gunung Jati

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33603/jgst.v1i1.1031

Abstract

Cibendung Weir comprised in the district of Banjarharjo Brebes Center Java, the located approximately less than 50 km from Cirebon and 40 km from Brebes Center Java, and exist some villages such as, Cikakak, Karang Maja, Tiwulandu Village in East and Tonjong, Singkup, Gandol in West.Cibendung Weir have duct the name is Induk Cibendung Weir or named D.I Jangkelok Hilir. At first, the water able to dilute more less 6677ha but in this time only more less 6349ha, the trouble is diversion of the use of land. This Cibendung Weir was built in the years 1901 – 1904.  The irrigation areas of Cibendung Weir supply six kemantren such as Kemantren Cibendung, Kemantren Bantarsari, Kemantren Losari Hulu, Kemantren Losari Hilir, Kemantren Kubangjero, and Kemantren Rungkang.The purpose of this research is become reference from evaluation performance of the irrigation area in Cibendung Weir by analyzing the physical condition of building although duct in the irrigation area of Cibendung Weir, analyzing of human resource in the irrigation area of Cibendung Weir, analyzing of rain Hydrology in the irrigation area of Cibendung Weir, analyzing of income from Bendung Cibendong, analyzing of the patterns plants in the irrigation area of Cibendung Weir, and analyzing planning plant and the realization of planting in the irrigation area of Cibendung Weir.The method of this research is qualitative method, in which the fission of the problem is explained that subject or the object research based on the facts which used during doing the research in performance of irrigation system and try to make a good relation in deep from the aspects particularly.Based on the build condition in this irrigation area is classified as satisfactory with percentage of damage reached 11,30%. Meanwhile, the duct condition in this irrigation area Cibendung Weir is good classified with percentage of damage reached 8,21%. The condition of organizer in DI Jangkelok Cibendung Weir only available 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 which less wake or always damaged, this situation should be increased.From the results of the analysis of the ratio of demand discharge with available discharge added effective rainfall in Irrigation Area Jengkelok,Cibendung Weir fulfilled,but many unused discharge it is necessary to modify cropping pattern in orde to maximize the potential of available discharge. The planting realization in 7 years ago in the irrigation area Jangkelok Cibendung Weir  it is less from the planning plant, but in the period of 2011/2012 occurs increased 7,34% and the realization of intensity planting is average 243,77% while the average of planning plan is 268,91% thus the lower plant in productivity in this case since it can’t be done to planting in this wide area.
The Analysis Of Hydrology In Comal River Gunawan Gunawan; Saihul Anwar; Ohan Farhan
Journal of Green Science and Technology Vol 3 No 2 (2019): JOURNAL OF GREEN SCIENCE AND TECHNOLOGY
Publisher : Faculty of Engineering, Universitas Swadaya Gunung Jati

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33603/jgst.v3i2.2384

Abstract

This research was conducted to find out the availability of water to the requirements of water and also predict flood plan discharge for return period based on hydrological analysis in Comal River.Calculations are carried out using rainfall data obtained from PUSDATARU of Pemali - Comal from 1999 - 2017.Used the rainstation in the region of Comal Watershed, there are 7 rain stations. Catchment area of rain station used Thiessen Polygon Method to know value of catchment area of each rain station. The Gumbel distribution (Generalized Extreme Value distribution Type-I) is used to model the distribution of the maximum (or the minimum) of a number of samples of various distributions. The calculation of the flood discharge design is using the Nakayasu, Rational, Weduwen, Weduweden, and Haspers method.Based on the result of this research it can be concluded that the biggest water potential occurs in January is 199.60 m3/s and the smallest in August is 0.84 m3/s. Cropping pattern carried out with one year there are three cropping patterns, namely paddy - paddy - secondary crops. For the water requirements, enough can be fulfilled, but in August and September, where the planting period III for the secondary crops experiences a deficit. The method used to design flood discharge is the Nakayasu method. For the embankment construction and normalization is profitable.Keywords: River, Flood, Embankment, Thiessen, Comal  
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.
ANALYSIS OF THE CARRYING CAPACITY OF URBAN DRAINAGE DIMENSIONS Awliya Tribhuwana; Fathur Rohman; Ohan Farhan
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.v5i1.4954

Abstract

The rain that fell in the city of Cirebon, especially the drainage on Jalan Pemuda, could not accommodate and drain the water so that it could create puddles on the roads and surrounding areas. Hourly rain intensity, planned flow rate and channel cross-sectional dimensions are the first steps for flood prevention. Hydrological analysis is used to calculate the discharge capacity of the drainage plan. The results were then analyzed the dimensions of the channel, the drainage ability to accommodate the falling rainwater where Qs is bigger than Qp. the channel discharge has not been able to accommodate the Q plan in the channel so that there will be a runoff of 17.759%. So to anticipate runoff, it is necessary to have a channel improvement plan of 33.477%. In addition to channel improvement solutions, arrange and define the boundaries of water storage areas by measuring and mapping boundaries and issuing regulations that prohibit or limit the construction of buildings that can reduce the ability of areas to store and absorb rainwater by referring to the basic building coefficient (KDB) permitted as stated in the RT/RW.
Surface Flow Analysis as an Efforts Flood Mitigation Awliya Tribhuwana; Fathur Rohman; Ohan Farhan
Journal of Green Science and Technology Vol 8 No 1 (2024): Journal of Green Science and Technology Vol.8 No.1 March 2024
Publisher : Faculty of Engineering, Universitas Swadaya Gunung Jati

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33603/jgst.v8i1.144

Abstract

Problems that often arise in the city of Cirebon are flooding caused by rain, land changes not supported by adequate infrastructure, narrowing of drainage channels and sedimentation of channels. This is the location where flooding often occurs in the Pemuda Street area and its surroundings. Therefore, it is necessary to carry out research on surface flow analysis as an effort to handle floods with the aim of inundation management strategies to reduce excessive rainwater runoff in drainage areas and channels. The research methods used were problem identification, literature study, data collection, analysis and design planning. The results can show that inundation is handled in two ways, first by changing the dimensions of the channel at the initial height H to 0.45m, it still experiences inundation, this is due to the difference in elevation which causes inundation in the channel. There was a change in the flood inundation area to 23,127 ha from the original 58,958 ha, meaning that the flood free area increased from 9,388 ha to 35,831 ha. The second way is by making 378 infiltration wells spread across 34 channels that experience flooding. With these infiltration wells, the flooding can be reduced to a minimum from an area of ​​23,127 ha to 0.040 ha. The success rate for flood management efforts reached 99.908%, with failure being 0.092%. Of the area of ​​68,346 ha, the flood-free area reached 68,306 ha and the remaining inundated area was 0.040 ha..
Performance Analysis of Pedestrian Paths in The Colonial Historical Area of Kota Lama Cirebon Mira Lestira Hariani; Arni Muslimah Handayani Widjaja; Martinus Agus Sugiyanto; Ohan Farhan; Fathur Rohman
Journal of Green Science and Technology Vol 7 No 3 (2023): Journal of Green Science and Technology Vol.7 No.3 Special Edition : Applied scie
Publisher : Faculty of Engineering, Universitas Swadaya Gunung Jati

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33603/jgst.v7i3.102

Abstract

Pedestrian path conditions are one of the factors that affect willingness to walk and play an important role in supporting historical tourism activities. This study analyzes the performance of pedestrian paths expressed by Pedestrian Level of Service (PLOS) in the colonial historical area of Kota Lama Cirebon.  The method used in this study was to conduct a geometric survey of pedestrian paths, pedestrian flow surveys, and pedestrian travel time surveys in 10 segments scattered throughout the study area. The survey results were analyzed regarding the 1985 Highway Capacity Manual (HCM) and PLOS values generated based on available walking space. The study shows that in terms of walking space availability, most of the segments in the study area have a PLOS A score, which means they are performing well. In comparison, some segments have poor PLOS, such as Merdeka Street, Yos Sudarso Street, TJ Street, and Kebumen Street, due to the unavailability of sufficient walking paths to serve pedestrians or the presence of side obstacles that reduce the effective width of the pedestrian path. To overcome these problems, several things need to be done, such as: 1) issue a policy prohibiting selling on pedestrian paths to reduce side obstacles so that the effective width of the pedestrian path can increase; 2) widen the pedestrian path at least according to the applicable standards; and 3) provide pedestrian paths on segments that do not yet have pedestrian paths.
Co-Authors Agus Kosasih, Agus Ahmad Mansubun Zamanudin Ahmad Taufik Aini, Syafira Luthfi Ainun Yusri Akbar Winasis Aldi Aldi Andi Gunawan Ardianti Agustina Arni Muslimah Handayani Widjaja Awliya Tribhuwana Awliya Tribhuwana Azriel Albani Syahrain Casuya, Casuya Cecep Priyono Derry Taddarus Dita Rosiyanah Fathur Rohman Fathur Rohman Fathur Rohman Feby Novela Gunawan Gunawan Gunawan Gunawan Haikal Abu Nidal Hanapi, Fajri Heri Mulyono Ibnu El Musayyab Jati, Muhamad Alfito Kelli Dwi Yusup Lulu Raudlatul Aulia Lumtunnanie, Annisa Martinus Agus S Mira Lestira Hariani Muhamad Faisal, Muhamad Novriani, Shinta Nur Azis Zain Nur Fieka Putri Nur S, Elang Ramdhan Rafli, Mochamad Rahayu, Pony Ramadhan, Erik Rizky Saifutdin, Muchammad Arif Saihul Anwar Sugiyanto, Martinus Agus Suparman Suparman Syahputra, M Reza Wahidan, Fikri Zaenal Muttaqin Zain, Nur Azis