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Jurnal Teknik
Published by Universitas Negeri Gorontalo
ISSN : 16936191     EISSN : 27157660     DOI : https://doi.org/10.37031/jt
Core Subject : Science, Engineering,
Civil Engineering, Building, Construction & Architecture Computer Science & IT Electrical & Electronics Engineering Industrial & Manufacturing Engineering Mechanical Engineering
Jurnal Teknik (JT) is a peer-reviewed journal published by Faculty of Engineering, State University of Gorontalo. JT is published two times annually, in June and December. JT provides a place for academics, researchers, and practitioners to publish scientific articles. The scope of the articles listed in this journal is related to various topics such as Civil Engineering, Electrical Engineering, Informatics Engineering, Craft Engineering, Architecture, Industrial Engineering, Mechanical Engineering, Engineering Education, and other related engineering fields.
Arjuna Subject : Teknik (semua kategori) - Teknik (Lain-Lain)
Articles 123 Documents
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Analisis Besaran Erosi dan Stabilitas Lereng dengan Perkuatan Soil Nailing Balu, Rasyid; Patuti, Indriati Martha; Achmad, Fadly
Jurnal Teknik Vol 23 No 1 (2025): Jurnal Teknik
Publisher : Universitas Negeri Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37031/jt.v23i1.614

Abstract

The Gorontalo Outer Ring Road (GORR), with a length of 45.3 km, is a road constructed by cutting through the foot of slopes, posing a potential risk of landslides. Land-use changes on the slopes have been utilized by local residents for agricultural purposes and tourist attractions. This, of course, can affect the stability of the slopes surrounding the road. Therefore, this study aims to determine the magnitude of erosion and slope stability along the Gorontalo Outer Ring Road. In this study, erosion analysis was conducted using the USLE (Universal Soil Loss Equation) method, while slope stability analysis – both natural and reinforced with soil nailing – was performed using the Bishop method with the aid of Geo5 software. Based on the research results, the erosion analysis using the USLE method found that the average erosion rate on the northern slope is 79.77 tons/year, while the average erosion rate on the southern slope is 25.27 tons/year. The slope safety factor analysis shows that the southern slope under seismic load has a safety factor (FK) of 0.78, while the northern slope under seismic load has a safety factor (FK) of 0.66. Slope safety factor analysis with soil nailing reveals that the southern slope under seismic load has a safety factor (FK) of 1.87, and the northern slope has a safety factor (FK) of 1.73. Based on the analysis results, the slopes meet the required standards, with FK > 1.11 in accordance with SNI 8460:2017.
Augmented Reality Sebagai Media Edukasi Pengenalan Anggota Keluarga Pada Anak: Studi Kasus Penggunaan Buku Interaktif Setyo Kurniawati, Lintang; Fitriyah, Nur Qodariyah; Fitriyah, Bait Syaiful Rijal; Fitriyah, Aurelia Agustin; Fitriyah, Cetta Ugama Putra
Jurnal Teknik Vol 23 No 1 (2025): Jurnal Teknik
Publisher : Universitas Negeri Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37031/jt.v23i1.622

Abstract

This study develops an educational media based on Augmented Reality (AR) in the form of an interactive book to introduce family members to early childhood learners. AR technology enables more engaging visual interaction compared to conventional learning methods. The research method used is Research and Development (R&D) with stages including needs analysis, design, development, implementation, and evaluation. The trial results indicate that this media significantly improves children's understanding of family members, with a statistically significant increase in post-test scores compared to pre-test (p < 0.05). Evaluations from teachers and parents also show that this media is effective, engaging, and easy for children to use. Therefore, AR-based interactive books have the potential to be an innovative solution in early childhood education.
Optimalisasi Kecepatan Kendaraan Angkutan Sampah di Kota Manado Kumaat, Meike; Lefrandt, Lucia
Jurnal Teknik Vol 23 No 1 (2025): Jurnal Teknik
Publisher : Universitas Negeri Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37031/jt.v23i1.625

Abstract

Waste management is a problem in all regions in Indonesia, including the city of Manado. Delays in waste transportation can cause odor problems and accumulation of waste that will disturb the surrounding environment. A good waste transportation system is needed, especially for the city of Manado, which is effective and efficient. The efficiency reviewed is in terms of Vehicle Operating Costs (BOK), so that it can be known exactly the BOK per kilometer of the garbage truck for each route reviewed.The BOK analysis uses PCI analysis to calculate the BOK per kilometer for dumptruck vehicles. The route taken by the garbage trucks operating in Malalayang Sub-district has 2 villages, namely Malalayang 1 West Village and Malalayang 1 Village. The first ritation of the truck goes to Wolter Monginsidi Street, transports garbage along the protocol road and returns to Sumompo Landfill. The second ritation of garbage trucks will go to the Intermediate Transfer Station (SPA) in Malalayang 1 Barat and Malalayang 1 villages to wait for garbage carts that transport door to door and then return to the Sumompo landfill. The results of the BOK research for trucks operating in Malalayang 1 West Village amounted to Rp. 292,463 for one day of operation. While the BOK for garbage trucks operating in Malalayang 1 Village is Rp. 283,526 for one day of operation
Pengaruh Desain Cerobong Boiler Terhadap Sebaran Emisi Partikulat Menggunakan Perangkat Pemodelan Aermod Prabasari, Ira; Hutagalung, Winny Laura Christina; Bahar, Fetty Febriasti; Kumalasari, Dyah
Jurnal Teknik Vol 23 No 1 (2025): Jurnal Teknik
Publisher : Universitas Negeri Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37031/jt.v23i1.462

Abstract

Particulate emissions from boiler activities are known has a negative impact on health, such as causing respiratory problems. The particulate emission dispersion model generated from the chimney of a boiler can be known using the aermod modeling tool, through this model, the concentration of particulate emissions received by the environment around the activity can be studied. The design of the boiler chimney is also known to affect the concentration of particulate matter that is dispersed. This study aims to determine the effect of chimney design on the distribution of particulate emissions from boilers activities. The particulate dispersion model was carried out using the aermod modeling tool with several fixed variables, namely climatic conditions, the location of chimney and reseptor, and particulate emissions coming out from boiler, while the independent variables were variations in chimney diameter and heights. The results of particulate distribution model show that chimneys with a diameter of 2 meters and a height of 28 meters have a wider distribution of 93.96 meters from the emission source with a maximum concentration of 29.41 µm/Nm3. While the lowest concentration received by the receptor of 2.51 µm/Nm3 came from the chimney with a larger diameter and higher chimney.
Design of Smart Iron Plate Heating Machine Using Quality Function Deployment Method Raden Rara Arsia Permata Noor; Berlianty, Intan
Jurnal Teknik Vol 23 No 1 (2025): Jurnal Teknik
Publisher : Universitas Negeri Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37031/jt.v23i1.551

Abstract

The number of gloves entering the ironing department is greater than the number of gloves that are ironed, causing a lot of accumulation of gloves that have not been ironed. Based on this problem, a problem identification was carried out using the IDEF0 method. Based on the results of the discussion, the solution to the existing problem is to design an ironing plate heating machine using the Quality Function Deployment (QFD) method which can reduce ironing process time and increase productivity. After the machine was completed, a test was carried out where the results of the gloves from the ironing plate heating machine had met the standard operating procedure. In addition, the standard ironing time decreased where initially when using a conventional iron it took 47.68 seconds to iron. While when using an ironing plate heating machine it took 36.14 seconds to iron. The number of gloves produced in 4 hours of using a conventional ironing machine produced 300 gloves while the ironing plate heating machine produced 350 gloves.
Perencanaan Lalu Lintas Pengembangan Pelabuhan Perikanan Likupang Pandey, Sisca; Sumarauw, Jeffry S T; Dundu, Ariestides K T
Jurnal Teknik Vol 23 No 1 (2025): Jurnal Teknik
Publisher : Universitas Negeri Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37031/jt.v23i1.561

Abstract

The development of new land uses that become activity centers will cause traffic generation. The construction and operation of the Likupang Fishing Port in North Minahasa Regency, North Sulawesi Province has caused an increase in traffic movements. The traffic generation resulting from the development of fishing port infrastructure is classified as high traffic generation. The aim of this research is what the traffic management plan is for developing the Likupang fishing port. The research method/design begins with a background to the problem and establishing research objectives. Primary data in the form of traffic flow characteristics data consisting of volume, speed, density of traffic flow on the affected road sections. Geometric inventory data of roads, passengers getting on and off ships is calculated as a person generation calculated manually using a survey form. Secondary data in the form of population data, public transportation, road networks. The technique for collecting traffic volume data by counting the number of vehicles passing on the observation line is carried out by recording all vehicles that pass a point on the affected road section, using a hand tally counter and a survey form. The surveyor will count each type of vehicle based on its classification. The technique for collecting data on traffic flow speed is carried out manually, setting the length of the road section at 50 meters and speed calculations are carried out by 2 surveyors using the flag method. The collection of traffic flow and generation was calculated during the survey period from 06.00 – 19.00. Analysis of volume, speed, density of traffic flow and traffic flow simulation using the MKJI 1997 method. Performance of the local road section of Likupang Fishing Port, existing condition of service level B and speed of 10 km/hour. Increased traffic flow in the future will cause the service level of the Likupang Fishing Harbor collector road to decrease to service level C.Traffic management plan during the construction period a) 1 warning light warning sign. b) Installation of 2 caution signs in and out of project vehicles. c) Placement of car wash, d) guard post, e) construction material stockyard. Traffic planning at the Likupang Fishing Port when it is built and will be operated is to install - 1 caution sign, - 1 unit of entry sign, - 1 exit sign, - 1 stop sign, - 1 guard post. Traffic management planning for the construction of the Likupang Fishing Port will provide services that provide comfort to road users.
Efisiensi Kinerja Rantai Pasok Menggunakan Metode Data Envelopment Analysis Nurhamidin, Aisyah; Rasyid, Abdul; Larosa, Esta
Jurnal Teknik Vol 23 No 1 (2025): Jurnal Teknik
Publisher : Universitas Negeri Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37031/jt.v23i1.586

Abstract

The supply chain sector is one of the most determining the company's ability to maintain its business operations. PT. Sentra Mulia Sejahtera has never conducted performance measurements on its supply chain flow, so it is not yet known how efficient its supply chain performance is. The purpose of this study is to analyze the level of efficiency of supply chain performance and propose improvement strategies for the inefficient supply chain performance of PT. Sentra Mulia Sejahtera using the Data Envelopment Analysis method. The results showed that at the supplier level there was 1 DMU that was already efficient, 2 DMUs were marginally efficient and 2 other DMUs were still inefficient. Meanwhile, at the company level, there are 4 DMUs in an inefficient condition, DMU 3 is the DMU with the lowest efficiency value of 38.5%. The improvement strategy for inefficient suppliers is to reduce the value of the input variables. The improvement solution for the company based on the results of the potential improvement calculation must reduce the cash to cash cycle time and lead time for order fulfillment by reducing the length of the payment agreement from the distributor.
Lean Manufacturing dengan PDCA untuk Peningkatan Kualitas Gula Semut Aren di PT. XYZ Rexoprodjo, Monalisa; Abdul Rasyid; Monica Pratiwi
Jurnal Teknik Vol 23 No 1 (2025): Jurnal Teknik
Publisher : Universitas Negeri Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37031/jt.v23i1.587

Abstract

Gorontalo has ±496,000 palm trees, yet 60% are unprocessed, and mostly used for alcohol. PT XYZ is here to shift farmers' focus to Aren Ant Sugar production. Its derivative products include Aren Ant Sugar, Batok, and Liquid. Batok Sugar is the result of reprocessing defective products from Ant Sugar which certainly requires additional time and costs. This research aims to identify the cause of the defect, which is a lumpy texture due to the pH of the nira water being below the standard (6-7). The Lean Manufacturing method with PDCA was applied as a solution, along with the innovation of using rambusa fruit net (Passiflora foetida) as an antibacterial and antioxidant. As a result, the DPU value dropped from 0.0845 to 0, proving an improvement in quality and production focus in Aren Ant Sugar.
Enhancing Compressive Strength of Self-Compacting Concrete (SCC) through Rice Husk Ash and Superplasticizer Incorporation Olii, Muhammad Ramdhan; Ali, Azhar Zukur Putra M.; Djau, Rahman Abdul; Doda, Nurhayati; Olii, Rizky Selly Nazarina
Jurnal Teknik Vol 23 No 1 (2025): Jurnal Teknik
Publisher : Universitas Negeri Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37031/jt.v23i1.611

Abstract

The increasing demand for sustainable construction materials has encouraged the utilization of alternative materials, such as rice husk ash (RHA), and the use of chemical admixtures like superplasticizers in self-compacting concrete (SCC). This study aims to evaluate the effects of RHA and superplasticizer incorporation on the fresh and hardened properties of SCC, focusing on flowability, segregation resistance, and compressive strength. The experimental program involved three SCC mixtures: normal concrete, and SCC with 4% and 8% RHA and superplasticizer by cement weight. Fresh concrete properties were assessed using the slump flow, V-Funnel, and L-Box tests, while compressive strength tests were conducted on cube specimens after 28 days of curing. The results indicated that the addition of 4% RHA and superplasticizer enhanced the compressive strength to 34.02 MPa and maintained flowability within the specified limits, with an average slump flow diameter of 675–697 mm, V-Funnel time of 7.35–8.72 seconds, and L-Box ratio of 0.84–0.85. However, the 8% RHA mixture exhibited a decline in compressive strength (28.51 MPa), highlighting the detrimental effects of excessive superplasticizers on particle cohesion. Furthermore, the use of RHA reduced concrete density, showcasing its potential for lightweight construction applications. These findings confirm that a 4% RHA and superplasticizer dosage optimizes SCC performance, supporting sustainable construction through resource-efficient and durable materials. The study underscores the need for precise mix designs and suggests broader applications of RHA and chemical admixtures in advancing green concrete technologies.
Potential Soil Lateral Spreading and Settlement Induced Liquefaction in Indramayu Area Asrul Sani, Rifki; Soebowo, Eko; Ahmad Sadisun, Imam
Jurnal Teknik Vol 23 No 1 (2025): Jurnal Teknik
Publisher : Universitas Negeri Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37031/jt.v23i1.621

Abstract

An earthquake that had occurred in the Indramayu area in 1847 caused buildings and facilities to collapse, lives were lost, gaps 1-2 feet wide formed in the ground, all buildings in the fort area were severely damaged and could not be rehabited. Based on simulations and evaluations of previous research results in the same area, the source of the damaging earthquake is likely to originate from a shallow earthquake source currently referred to as the Baribis Fault Segment. This study aims to establish a relationship between past earthquake disasters and the potential for their occurrence in the future with the same earthquake source. In this research, we used data from field tests in the form of standard penetration test (SPT) values at 4 technical drilling points, as well as cone penetration test (CPTu) results at 10 test points and CPT results at 13 test points. The three results from the field tests are used in physical and mechanical analysis, as well as safety factors against liquefaction using different PGA value approaches, and the values of these safety factors are considered in estimating potential soil lateral spreading and settlement. The results of the analysis showed that sand sediment layer (fluvial and beach ridges) and sandy sediment layer (delta front silty sand) in the study area had the potential against liquefaction with specific soil settlement and lateral spreading values, depending on PGA values. The highest potential value soil settlement against liquefaction is 0.301 m, while the highest lateral spreading potential of the soil is 0.645 m.

Page 12 of 13 | Total Record : 123

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