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Jurnal Karajata Engineering
Published by Universitas Muhammadiyah Parepare
ISSN : -     EISSN : 27755266     DOI : -
Core Subject : Engineering,
Civil Engineering, Building, Construction & Architecture
JURNAL KARAJATA ENGINEERING adalah jurnal ilmiah pada bidang Teknik Sipil yang diterbitkan oleh Fakultas Teknik Universitas Muhammadiyah Parepare. Jurnal KARAJATA ENGINEERING berisi tulisan yang diangkat dari hasil penelitian pada bidang Teknik Sipil yang mencakup bidang penelitian Struktur, Transportasi, Keairan, Manajemen Konstruksi, Informatika Teknik Sipil dan bidang lain yang relevan
Arjuna Subject : Teknik (semua kategori) - Teknik Sipil dan Struktur
Articles 100 Documents
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Pengendalian Limpasan Pada Lahan Miring Menggunakan Metode Ekodrainase Awaluddin; Rahmawati; Didi, Andi Bustan
Jurnal Karajata Engineering Vol. 4 No. 2 (2024): 2024
Publisher : Fakultas Teknik Universitas Muhammadiyah Parepare

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31850/karajata.v4i2.3128

Abstract

The drainage concept common mistake that often occurs is dumping stagnant water into the river which will exceed the river's capacity, resulting in flooding. The eco drainage system can be a more environmentally friendly solution by absorbing as much surface runoff as possible into the soil naturally or channeling the water into rivers without exceeding the river's capacity limits. This research aims to determine how much water runoff is on sloping land, the effectiveness of the eco drainage method in controlling water runoff and its effect in increasing soil infiltration on sloping land. This experimental research was tested using a Rainfall Simulator with slopes of 13° and 20° and dead-end drainage holes. On a land slope of 13⁰ with rainfall of 3.67 L/minute, the amount of runoff with dead-end drainage is 3.71 L/minute and without which is 4.14 L/minute. Meanwhile on a land slope of 20⁰ with rainfall of 3.99 L/minute, the amount of runoff with dead-end drainage is 8.4 L/minute and without which is 9,63 L/minute. Providing dead-end drainage on sloping land can reduce the speed of surface runoff which will then enter the soil in the form of infiltration water.
Analisis Pengaruh Transpor Sedimen Terhadap Morfologi Sungai Calendu di Kabupaten Bantaeng Muh. Albuharram Rasyidin Nur; Nenny; Farida Gaffar; Samsir
Jurnal Karajata Engineering Vol. 4 No. 2 (2024): 2024
Publisher : Fakultas Teknik Universitas Muhammadiyah Parepare

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31850/karajata.v4i2.3087

Abstract

Sungai adalah aliran air di permukaan bumi yang terbentuk secara alami, mulai dari hulu kecil hingga hilir besar. Transportasi sedimen, sebagai proses alami yang melibatkan pergerakan material sedimen di sepanjang sungai, dapat berdampak cukup besar pada morfologi sungai. Keberadaan sedimen yang terlalu banyak dapat mempengaruhi perubahan morfologi seperti perubahan bentuk aliran dan kedangkalan di sungai, yang dapat menyebabkan air meluap yang dapat menyebabkan bencana banjir setiap tahunnya. Dalam banyak kasus yang ditemukan di Kabupaten Bantaeang, Sungai Calendu mengalami perubahan morfologi yang signifikan akibat sedimentasi yang terlalu tinggi. Tujuan dari penelitian ini adalah untuk mengetahui seberapa banyak transportasi sedimen dan pengaruh sedimen terhadap perubahan aliran Sungai Calendu di Kabupaten Bantaeng. dan hasil yang diperoleh untuk metode USBR, kejadian pengangkutan sedimen terapung sebesar 13,85 ton/tahun dan total pengangkutan sedimen terapung dengan debit desain Q50 sebesar 178,52 ton, pengangkutan sedimen dasar menggunakan metode Mayer Petter Muler sebesar 1903,72 ton/tahun, Einstein 78,70 ton/tahun, dan berdasarkan data lapangan sebesar 56,22 ton/tahun. Metode yang mendekati data lapangan adalah metode Einstein. Berdasarkan tahun 2018 hingga 2021, terjadi perubahan morfologi dimana pada tahun 2020 diperoleh pengangkutan sedimen terbesar, yaitu 24,39 ton/tahun.
Analisis Stabilitas Pada Struktur Penahan Tanah (Studi Kasus Pantai Punaga Kabupaten Takalar) Mustazim; Afdaliah, Athira; Syamsuri, Andi Makbul; Kasmawati
Jurnal Karajata Engineering Vol. 4 No. 2 (2024): 2024
Publisher : Fakultas Teknik Universitas Muhammadiyah Parepare

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31850/karajata.v4i2.3217

Abstract

Punaga Beach which located in Takalar Regency is frequently visited by tourists because it has a beautiful panorama. However, this tourist attraction also has problems that highly need attention. In certain seasons, this beach experiences increasingly severe coastal erosion problems due to strong waves and ocean currents. The impact of high tides that occur in several places causes coastal erosion and nearly damage the buildings. The purpose of this study was to determine the characteristics that occur at Punaga Beach and the effect of these characteristics on the stability of the revetment structure. This research was conducted at Punaga Beach, Mangarabombang District, Takalar Regency, South Sulawesi. The results of this study obtained the highest wave in 2022 was about 3.5 m and the toe protection stability value was obtained about 0.480. Therefore the toe protection stability number was about 90.5 which can be able to protect the revetment building from collapse
Analisis Kapasitas Penampang Sungai untuk Mengidentifikasi Banjir Menggunakan Software HEC-RAS 6.3.1 Ahmad Fajrin; Asrul; Nurnawaty; Indriyanti
Jurnal Karajata Engineering Vol. 4 No. 2 (2024): 2024
Publisher : Fakultas Teknik Universitas Muhammadiyah Parepare

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31850/karajata.v4i2.3237

Abstract

Floods occur due to a situation where the water flow is not accommodated Banjir, Hec-ras 6.3.1, Sungai. by the riverbed, as a result floods can cause property losses and loss of life. The purpose of this study was to determine the capacity of the Pangkajene River cross-section and identify flood overflows that occurred in the Pangkajene River. The model used in this study is the flow Hec-ras 6.3.1 (River Analysis System (RAS) Center (HEC). The results of the study showed that many river cross-section points experienced overflows and the highest discharge point was at STA 2400 of 254.48 m3/sec and an overflow height of 1.0 m. The main cause is the high intensity of rainfall accompanied by sedimentation deposits in the river which makes the river shallower so that almost every year there is a flood overflow at the research location
Integrasi Model Hujan-Aliran Dan Sistem Informasi Geografis (Studi Kasus DAS Katingan Provinsi Kalimantan Tengah) Yusrianti, Destia Fitri; Nomeritae; Saputra, Raden Haryo
Jurnal Karajata Engineering Vol. 4 No. 2 (2024): 2024
Publisher : Fakultas Teknik Universitas Muhammadiyah Parepare

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31850/karajata.v4i2.3323

Abstract

The Katingan watershed in Central Kalimantan Province, Indonesia, has experienced land use changes that have led to a reduction in the groundwater recharge areas. This study aims to examine the hydrological response of the Katingan watershed due to land cover changes by simulating the discharge of the Katingan River in Kasongan using the Arc-SWAT model integrated with Geographic Information System or GIS. The calibration results showed that the dominant physical parameters influencing the model were CN2 and ALPHA_BF. The CN2 value increased from 80 in 2013 to 83 in 2022, indicating a decrease in recharge areas and an increase in surface runoff volume. Meanwhile, the ALPHA_BF value remained 1 for all calibration years, indicating no significant changes in groundwater volume. The best-performing model was found for the calibration and validation years 2022 and 2023, indicating that land cover changes had a significant impact on the hydrological response of the Katingan watershed
Simulasi Pemanenan Hujan dan Pengaruhnya terhadap Debit Drainase Primer di Jalan Pangeran Samudera, Palangka Raya I Made Kamiana; Adi Wicaksono; Nomeritae
Jurnal Karajata Engineering Vol. 4 No. 2 (2024): 2024
Publisher : Fakultas Teknik Universitas Muhammadiyah Parepare

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31850/karajata.v4i2.3381

Abstract

Flooding in the residential areas of Palangka Raya City has become more frequent, including in the neighborhoods around Jalan Pangeran Samudera. A viable approach for managing flood risks is the use of rooftop rainwater harvesting. The objective of this study is to model the effects of implementing a rooftop rainwater harvesting system in these residential areas on the flow of the main drainage system. The study was conducted in 2024 using a simulation approach. The data used includes maximum daily rainfall, the drainage network and its flow directions, as well as the roof areas of buildings around Jalan Pangeran Samudera. The Rational Method was employed to analyze the discharge both without and with the rainwater harvesting scenario. The research findings show that, for return periods of 2 to 20 years, the drainage discharge without the implementation of the rooftop rainwater harvesting scenario ranges from 4.414 m³/second to 7.396 m³/second. Meanwhile, with the implementation of the rooftop rainwater harvesting scenario, the drainage discharge is estimated to range from 1.847 m³/second to 3.095 m³/second. In other words, for return periods of 2 to 20 years, the implementation of the rooftop rainwater harvesting scenario is estimated to reduce the drainage discharge by between 2.566 m³/second and 4.300 m³/second. On average, the drainage discharge is expected to decrease by 58.15%.
Analisa Pengaruh Variasi Penggabungan Asbuton dan Aspal Minyak Terhadap Campuran AC-BC Haikal, Muhammad Fikry; Jasman; Widarto, Hendro
Jurnal Karajata Engineering Vol. 4 No. 2 (2024): 2024
Publisher : Fakultas Teknik Universitas Muhammadiyah Parepare

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31850/karajata.v4i2.3441

Abstract

Asbuton, which has a higher stability and softening point and also lower deformation is expected to be an alternative to overcome the weaknesses of asphalt concrete mixtures. Also cheaper operational costs are the selling point of asbuton that needs to be watch out for. The aim of this study was to determine the Optimum Asphalt Content or also known as KAO of the mixing between asbuton and asphalt in order to obtain a mixture composition that meet the AC-BC characteristics requirements. The research method used in this paper is the experimental method and analyzed in accordance with the General Specification of Bina Marga 2018 revision 2. Based on the results of research conducted in the laboratory of University of Muhammadiyah Parepare, the asphalt mixture with Asbuton LGA type 50/30 with a content of 7%, 8% and 9% KAO was obtained at 6.75%. From the three variations, AC-BC with the addition of 7% LGA has the best stability with a MQ value of 319.93 kg/mm
Evaluasi Kinerja Saluran Sekunder Irigasi (Studi Kasus Daerah Irigasi Kampili Kecamatan Pallangga Kabupaten Gowa) Trimalino, Tedy; Virlayani, Asnita; Gaffar, Farida
Jurnal Karajata Engineering Vol. 4 No. 2 (2024): 2024
Publisher : Fakultas Teknik Universitas Muhammadiyah Parepare

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31850/karajata.v4i2.3443

Abstract

The Kampili irrigation system has experienced some damage, such as damage on channel body by ages, wild plants due to lack of maintenance and there are several channels that are not used to irrigate land according to the planned drainage area. The purpose of this study was to analyze secondary channel water loss and analyze the efficiency value of water distribution. This research was held on September 2024 and analyzed using the experimental methods. The results showed that the level of efficiency of the secondary channel was 79% which was still in the good category. That means it still functions well to channel water to the tertiary channels in Pallangga Village. This level of efficiency is supported by the physical structure of irrigation which also still in a good condition. In addition to water loss due to seepage, water loss was also caused by evaporation of 0.004209 m3/s but the level of efficiency still in standard.
Studi Kawasan Kerentanan Tanah Longsor Pada Ruas Jalan Poros di Kecamatan Enrekang Menggunakan Aplikasi ArcGis Satrama; Sulfanita, Andi; Hamka
Jurnal Karajata Engineering Vol. 4 No. 2 (2024): 2024
Publisher : Fakultas Teknik Universitas Muhammadiyah Parepare

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31850/karajata.v4i2.3458

Abstract

The prevalence of landslides has resulted in great losses, including the loss of human lives, the loss of property, and the disruption of natural ecosystems, especially in Enrekang District, Enrekang Regency. This study aims to identify landslide-prone areas and the level of landslide risk by using a landslide-prone map in Enrekang District. This study uses quantitative descriptive method techniques, spatial analysis with GIS analysis tools, and assessment analysis is carried out by multiplying the weight values and scores for variables such as slope, rainfall, soil rock type, and land use. The results of the study showed that three classes of vulnerability were obtained in Enrekang District, namely, high vulnerability with an area of 128.80 Ha, medium vulnerability with an area of 24033.26 Ha, and low vulnerability with an area of 3817.16 Ha.
Analisis Penggunaan Pasir Kuarsa dengan Tambahan Superplasticizer terhadap Kapasitas Kuat Tekan dan Tarik Belah Beton Wahidah Sulkaeda Aseh Syahda; Mustakim, Mustakim; Misbahuddin, Misbahuddin
Jurnal Karajata Engineering Vol. 4 No. 2 (2024): 2024
Publisher : Fakultas Teknik Universitas Muhammadiyah Parepare

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31850/karajata.v4i2.3475

Abstract

Aggregate is one of the concrete forming materials that has the largest composition in the concrete mixture, the large number of uses of concrete in construction results in an increase in the need for concrete materials, triggering rock mining as one of the materials forming concrete on a large scale. This study aims to determine the effect of quartz sand substitution and superplasticizer on the compressive and tensile strength of concrete, and to determine the results of the comparison of each mixture of pure sand substitution with quartz sand plus additive superplasticizers on the compressive strength and tensile strength of concrete. The method used in this study was an experiment at the Civil Engineering Structure and Material Laboratory, University of Muhammadiyah Parepare. From January to April 2023. The results showed that the results of compressive strength testing of concrete at the age of 28 days on normal concrete with an average of 27.45 Mpa. For a variation of 25% quartz sand with an average of 20.75 Mpa. For the CPC 300 variation with an average compressive strength of 25.10 Mpa. As for the BPK500 variation with an average compressive strength of 20.76 Mpa, while for the results of concrete tensile testing that pays attention to variations in superplasticizer mixtures with 4 variations, namely BN, BPK0, BPK300 and BPK500, the results of the tensile strength test test obtained an average value of 10.44 MPa. For the 25% variation, an average value of 4.22 MPa was obtained. For the BPK300 variation, an average value of 5.11 MPa was obtained. As for the CPC 500 variation with an average value of 5.22 MPa.

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