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Jurnal Teknik Pengairan: Journal of Water Resources Engineering
Published by Universitas Brawijaya
ISSN : 20861761     EISSN : 24776068     DOI : 10.21776
Core Subject : Engineering,
Engineering
Jurnal Teknik Pengairan is a scientific journal published regularly twice per year by Faculty of Engineering, Universitas Brawijaya. The paper submitted in this journal covers the fields of Water Resources Information System, Water Resources Conservation, Water Resources Utilization and Efficiency, Water Structure Engineering Planning and Water Resources Engineering Basic Knowledge. The submitted paper can be a summary of research reports or scientific literature review. The language used in this journal is either English or Indonesian.
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Articles 14 Documents
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Search results for , issue "Vol 5, No 1 (2014)" : 14 Documents clear
Analisa Keruntuhan Bendungan Gondang Dengan Menggunakan Program Zhong Xing HY21 Aryadi, Eric Virgiawan; Juwono, Pitojo Tri; Priyantoro, Dwi; Asmaranto, Runi
Jurnal Teknik Pengairan: Journal of Water Resources Engineering Vol 5, No 1 (2014)
Publisher : Fakultas Teknik, Universitas Brawijaya

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Abstract

Dam failure occured due to overtopping and piping. This can lead to rapid propagatioin of water flow so inundated the downstream of the dam. The purpose of this study was to analyze the various scenarios for the dam break. Dam Break Analysis conducted with Zhong Xing HY21 software. This study conducted the dam break analysis with overtopping and piping scenarios by insterting certain fracture parameters in order to obtain the outflow hydrograph.Gondang Dam Break greatest impact if experienced overtopping with Q Inflow 968,548 m /sec and produce Q Outflow 7671,57 m /sec. Result flood routing water level of the reservoir was located at an elevation of +40,593 (Gondang Dam Crest Elevation +42,00), so assumed the dam crest elevation of + 40,00. This flood could be trace Gondang River and flooded rice field and also the settlement area around ±73 km 2 . 3Keyword: Dam, Overtopping, Piping, Dam Break Analysis, ZhongXing HY21
Studi Tingkat Kekritisan Lahan Sebagai Dasar Arahan Rehabilitasi Hutan Dan Lahan Das Marisa Di Kabupaten Pohuwato Provinsi Gorontalo Wolok, Estefanus; Suhartanto, Ery; Harisuseno, Donny
Jurnal Teknik Pengairan: Journal of Water Resources Engineering Vol 5, No 1 (2014)
Publisher : Fakultas Teknik, Universitas Brawijaya

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Abstract

The forest degradation rate reached 2,83 million ha every year. From the total forest area of 120,5 million ha, about 59 million ha were critical areas. Besides, the critical Watersheds ini Indonesia increased. The watershed conservation efforts had brought motivation to develop the erosion estimation technologies that could assist in solving the erosion rate estimation problems spatially. The study was carried out at Marisa Watershed, Pohuwato Regency of Gorontalo Province. The results showed that the value of erosion rate in Marisa Watershed area was 169,364 ton/ha/year or 14,114 mm/year where the Marisa Watershed total wide was 14.842,5 ha. Whereas the sediment potential was 125,299 ton/year and runoff was 197,779 mm/year. The Erosion Danger Level was 3.654,146 ha (14,71%) hard and 3.353,834 ha (13,50 %) very hard. One of the assumptions why the land erosion rate was very high was because of the misuse of the land and geology condition at Marisa Watershed.To control the erosion rate, focussed to the recommendation of land utilization direction that referred to The Forest - Soil Conservation and Rehabilitation Program (ARHL) and building of 6 check dam. Meanwhile, the land utilization should notice The RTRW and the cooperation between local inhabitant and the government was needed indeed in the soil conservation and land rehabilitation efforts.Key Words: Erosion, Sediment, Run Off, Soil Conservation.
Studi Optimasi Pola Tanam Daerah Irigasi Kosinggolan Di Kabupaten Bolaang Mongondow Rudson, Rony; Soetopo, Widandi; Limantara, Lily Montarcih L
Jurnal Teknik Pengairan: Journal of Water Resources Engineering Vol 5, No 1 (2014)
Publisher : Fakultas Teknik, Universitas Brawijaya

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Abstract

Irrigation areas of Kosinggolan which is spread in Dumoga plains has potential broad in 5381 acres and irrigated functional areas 3865 acres at this time. After 28 years in operation Kosinggolan weir discharge decreased that effect on agricultural production. Due to the discharge limitations in Kosinggolan implementing the provision of irrigation water the class system is divided into three planting periods. Linier Optimization and Sensitivity Analysis to the crop pattern has been using Solver facility from Microsoft Excel.Based on the results ofthe conducted optimization analysis obtained extensive results optimum crop rice at dry conditions, condition low, under normal conditions and sufficient conditions: crop rice from 1450 – 3865 acres. While the maximum profit results in dry conditions, under conditions of low, under normal conditions and sufficient conditions: from Rp 11.133.750.357,00 until Rp33,200,350,000,00. For sensitivity analysis results of obtained land area sensitive: in dry conditions between, the low condition, under normal conditionsand the sufficient conditions: from 0–9307 acres.Keywords: irrigation, linier optimization, sensitivity
Studi Penilaian Indikator Kinerja Das Konaweha Akibat Perubahan Tata Guna Lahan Berdasarkan Kriteria Hidrologis Andono, Riwin; Limantara, Lily Montarcih; Juwono, Pitojo Tri
Jurnal Teknik Pengairan: Journal of Water Resources Engineering Vol 5, No 1 (2014)
Publisher : Fakultas Teknik, Universitas Brawijaya

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Abstract

Watershed assessment using hydrology indicators is a quick and effective way to know the performance of the Konaweha watershed due to land use changes. Konaweha watershed is located in Sulawesi Tenggara Province, which includes Kendari City, Konawe, and Kolaka with its ± 6020 km basin area. This study was conducted to evaluate the response of Konaweha watershed due to land use changes in the year of 2000 - 2010, and land use spatial direction (RTRW) of Sulawesi Tenggara Province, using spatial analysis methods by applying AVSWAT software. Watershed performance indicators which is used in the assessment indicators is discharge to know the value of Coefficient River Regim (KRS), runoff coefficient, and sediment transport in Konaweha Watershed. Based on both of the three indicators and the calculation of the spatial analysis showed that Konaweha Watershed is in good category. KRS values obtained in 2000 and 2010, as well as the spatial direction in between 99 - 102 indicating Konaweha watershed in medium category. Runoff coefficient indicator showed value in between 0.045 - 0.1 which indicating watershed in the good category. Furthermore, sediment transport indicators show the value of 0.5 - 0.105 were also indicating in good category. KRS values of Konaweha watershed which is in medium category, it is indicated that Konaweha watershed has poor capacity to retain and storage of water infiltration. Construction of dams, ponds, and other technical efforts are needed to be done in order to improve the performance of DAS Konaweha with decreasing the indicator score of River Regim Coefficient (KRS)Key words: Watershed Assesment, Land user changes, Hidrology

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