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Studi Perencanaan Bendung (Studi Kasus Bendung Kayuangin Kabupaten Majene Provinsi Sulawesi Barat) Ahmad Adhyaksa; Zulkifly; Agussalim, M.; Mahmuddin
Jurnal Karajata Engineering Vol. 5 No. 1 (2025): 2025
Publisher : Fakultas Teknik Universitas Muhammadiyah Parepare

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31850/karajata.v5i1.3557

Abstract

Water is a vital resource that supports various aspects of life, including domestic needs, agriculture, industry, and environmental conservation. The development of infrastructure such as dam plays a key role in maintaining the sustainability of water resources. So it is necessary to pay attention to hydrological analysis, lighthouse, and also stability of a weir. The aim of this research is to be able to understand and know how to plan weir by using existing technical data on weir designs as a guide and as a comparison parameter in this research. This research was carried out in Majene Regency, West Sulawesi Province during March to August 2024. The results of this research show that in general the hydraulic planning review for Kayuangin weir consists of a lighthouse height of 5 m, a weir width of 108 m, an effective width of the weir of 99,5 a deckzerk elevation of 26,59, a lighthouse elevation of 23,20, front floor elevation 17,95, and front floor length 20,60.
Analisis Debit Dengan Metode F.J. Mock Dan NRECA Serta Perbandingannya Terhadap Debit Pos Duga Air Agussalim, M.; Azis, Indriyanti; Antaria, Sukmasari; K, Riswal; Febrianti, Annisa; Rosdiana, Ayu
Jurnal Karajata Engineering Vol. 5 No. 1 (2025): 2025
Publisher : Fakultas Teknik Universitas Muhammadiyah Parepare

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31850/karajata.v5i1.3624

Abstract

The Makawa river basin located in the Rongkong watershed has an increase in surface flow which affects the discharge flow which can cause flooding. Therefore, discharge data is needed to manage existing water resources. This study aims to analyze the water discharge using the F.J. Mock and NRECA methods, which are then compared to the water estimation post discharge. The results of this study showed that the F.J. Mock method has a relative error of 48% and a correlation coefficient of 0,690 with a strong interpretation, while NRECA showed a relative error of 50% and a correlation coefficient of 0,669 with a strong interpretation. Therefore, it is concluded that the F.J. Mock method is more appropriate than the NRECA method with lower relative error results, and a higher correlation coefficient than NRECA. The result of the simulation discharge between F.J. Mock, NRACA and water estimation post discharge are quite far apart.
Pemetaan Zona Rawan Banjir Berbasis Skoring dan Pembobotan di Kecamatan Balusu, Kabupaten Barru Agussalim, M.; Aziz, Indriyanti; Fahril
Jurnal Karajata Engineering Vol. 5 No. 2 (2025): 2025
Publisher : Fakultas Teknik Universitas Muhammadiyah Parepare

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31850/karajata.v5i2.3799

Abstract

Balusu District is one of the areas in Barru Regency that has geographical characteristics that are prone to flooding. Topographically, this district has lowlands that tend to be prone to flooding during the rainy season. The purpose of this study was to determine the most dominant factors that causing flooding and to map the area of ​​flood-prone areas in Balusu District, Barru Regency. The method used in this study was to use the scoring and weighting method. The parameters of this study namely rainfall, land height, slope, soil type and land use will later be assessed by giving weights and classification values to each and then processed using the ArcGIS software. The results obtained from this study are the most dominant factors and causes of flood vulnerability in Balusu District are land elevation and high rainfall and the distribution of flood-prone areas in Balusu District is 42.68% of the total area of ​​Balusu District, which is 104.82 km².