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All Journal Jurnal Ilmu Ekonomi, Pendidikan dan Teknik (IDENTIK) Jurnal Pengabdian kepada Masyarakat Multidisiplin (JUPENGEN) Innovative Research in Civil and Environmental Engineering (IRCEE) Jurnal Ilmu Teknik Sipil Indonesia (JITESNA) Journal of Advanced Engineering and Technology Research (JODETOS)
Jun Fajar Krisman Giawa
Universitas Nias
Religion Agriculture, Biological Sciences & Forestry Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Economics, Econometrics & Finance Education Engineering Mechanical Engineering Transportation

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Perbandingan Kinerja Sistem Perkuatan Tanah Pada Penanganan Lereng Tidak Stabil Di Proyek Jalan Tol Bimawijaya Laia; Jun Fajar Krisman Giawa; Kevin Berkat Mendrofa; Andrew Christover Harefa; Laurensius Tema Berkati Jaya Gulo
Jurnal Ilmu Teknik Sipil Indonesia Vol. 1 No. 1 (2025): JITESNA - Juli
Publisher : CV. SINAR HOWUHOWU

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70134/jitesna.v1i1.748

Abstract

This study presents a comparative analysis of the technical effectiveness and cost efficiency of three ground reinforcement methods—geogrids, soil nailing, and gabion retaining walls—for slope stabilization in highway construction projects. Numerical modeling using geotechnical software was conducted to evaluate the performance of each method based on the increase in the factor of safety (FS) and the degree of slope deformation. The results indicate that soil nailing is the most technically effective method, providing the highest FS increase (up to 1.68) and the best control over deformation. However, it also incurs the highest implementation cost. In contrast, geogrids proved to be the most cost-efficient solution, although with a more moderate FS increase. Meanwhile, gabion retaining walls offer a good compromise between performance and cost. The study concludes that the optimal choice of a ground reinforcement method must be based on a multi-criteria analysis that considers specific geotechnical conditions, safety priorities, and budget availability. The findings of this research are expected to serve as a practical guide for engineers in designing safe, efficient, and sustainable slope stabilization solutions.
Pengenalan Dunia Kerja Bagi Mahasiswa Teknik Sipil Untuk Mempersiapkan Lulusan Di Industri Konstruksi Dermawan Zebua; Ayler Beniah Ndraha; Ignasia Hastuti Halawa; Jun Fajar Krisman Giawa
Jurnal Pengabdian Kepada Masyarakat Multi Disiplin Vol. 1 No. 2 (2024): JUPENGEN - November
Publisher : CV. SINAR HOWUHOWU

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70134/jupengen.v1i2.48

Abstract

This community service activity aims to introduce the working world to students of the Civil Engineering Program at Universitas Widya Kartika, focusing on preparing graduates to compete in the construction industry. The activity was conducted online via Google Meet, and was attended by students from Universitas Widya Kartika. The material was delivered by an industry practitioner who provided insights into the latest construction technology developments and green building, as well as the importance of soft skills development. Evaluation results showed that this activity was highly beneficial in enhancing students' understanding of the challenges of the working world and offering practical advice on preparing for entry into the construction industry. In conclusion, this activity successfully bridged the gap between the theoretical knowledge learned in university and real-world practice, offering valuable guidance for better career preparation.      
Strategi Peningkatan Keterampilan Pertukangan Kayu Sebagai Upaya Pemberdayaan Ekonomi Masyarakat Desa Mudik Dermawan Zebua; Hamedoni Harita; Bimawijaya Laia; Muhammad Haris Zalukhu; Serta Denius Daeli; Ikhtiar Aronifati Daeli; Jun Fajar Krisman Giawa; Kevin Berkat Mendrofa; Friski Dermawan Zebua; Rifki Wahyudi Mendrofa; Jefri Rahmat Daeli
Jurnal Pengabdian Kepada Masyarakat Multi Disiplin Vol. 2 No. 3 (2025): JUPENGEN - Agustus
Publisher : CV. SINAR HOWUHOWU

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70134/jupengen.v2i3.728

Abstract

The carpentry training program in Mudik Village aims to improve the technical and entrepreneurial skills of the community as part of local economic empowerment efforts. The three-day training program utilizes a combination of theory and practice. The first day focused on theoretical material, including an introduction to wood types, equipment usage, measurement techniques, occupational safety principles, and entrepreneurial fundamentals. The second and third days focused on hands-on practice in making simple products, such as bookshelves, covering the measuring, cutting, assembly, and finishing processes. Evaluation results showed significant skill improvements across all aspects, with the greatest improvement in the ability to use modern tools (+64%). Furthermore, participants demonstrated increased awareness of occupational safety and understanding of product marketing strategies. This training demonstrated that the three-day, integrative approach can improve skills while motivating the community to develop carpentry businesses. Future recommendations include further training, business mentoring, and the formation of village business groups to support the program's sustainability.
The Effect Of Traffic Volume On Traffic Congestion Levels Along National Roads In Nias Regency, Indonesia Muhammad Haris Zalukhu; Jun Fajar Krisman Giawa; Ignasia Hastuti Halawa
Innovative Research in Civil and Environmental Engineering Vol. 3 No. 1 (2026): IRCEE - April
Publisher : CV. SINAR HOWUHOWU

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70134/ircee.v3i1.1877

Abstract

Traffic congestion has become a major transportation challenge affecting mobility, economic activities, and regional accessibility, particularly along national roads that serve as primary transportation corridors. This study aims to analyze the effect of traffic volume on traffic congestion levels along national roads in Nias Regency, Indonesia. A quantitative descriptive approach combined with correlational analysis was employed to examine the relationship between traffic volume and roadway operational performance. Primary data were collected through manual traffic surveys conducted during morning, midday, and evening observation periods over seven consecutive days. Vehicle counts were converted into Passenger Car Units (PCU) based on the Indonesian Highway Capacity Guidelines (PKJI 2023). Traffic congestion levels were evaluated using road capacity, Volume-to-Capacity (V/C) ratio, average travel speed, and Level of Service (LOS). The influence of traffic volume on congestion was analyzed using simple linear regression. The results indicated an average traffic volume of 1,535.5 PCU/hour, an estimated road capacity of 1,850 PCU/hour, and a V/C ratio of 0.83, corresponding to Level of Service (LOS) D, which represents unstable traffic flow approaching roadway capacity. Regression analysis produced a correlation coefficient (R = 0.914) and a coefficient of determination (R² = 0.835), indicating that approximately 83.5% of the variation in traffic congestion levels could be explained by traffic volume. The statistical test confirmed that traffic volume has a significant positive effect on traffic congestion along national roads in Nias Regency (p < 0.001). The study concludes that increasing traffic demand substantially reduces roadway operational performance and recommends integrated congestion management strategies, including traffic control optimization, roadside activity regulation, parking management, and long-term infrastructure improvements to support sustainable regional transportation.
Performance Assessment Of High-Rise Building Foundations Subjected To Variable Soil And Load Conditions In Coastal Environments Dermawan Zebua; Jun Fajar Krisman Giawa; Anggerius Loi; Cristopher Zebua
Journal of Advanced Engineering and Technology Research Vol. 1 No. 1 (2025): JODETOS - November
Publisher : CV. SINAR HOWUHOWU

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70134/jodetos.v1i1.892

Abstract

High-rise buildings in coastal environments are exposed to complex geotechnical and environmental conditions that significantly affect foundation performance. This study evaluates the behavior of high-rise building foundations under variable soil and load conditions using field investigation, laboratory testing, and numerical modeling. Soil stratigraphy, groundwater fluctuations, and load variability were analyzed to assess settlement, differential tilting, and stress distribution. Results indicate that pile foundations outperform mat and combined mat-pile foundations in controlling differential settlement and maintaining structural serviceability. Groundwater level changes and load variations notably influence foundation performance, emphasizing the need for site-specific, performance-based design. The integrated methodology provides insights for resilient foundation design strategies in challenging coastal environments.
Pelaksanaan Uji Sondir Untuk Analisis Kondisi Tanah Di Gereja Bnkp Hosiana Dalam Rangka Penguatan Perencanaan Pembangunan Gedung Gereja Dermawan Zebua; Bimawijaya Laia; Hamedoni Harita; Jun Fajar Krisman Giawa; Kevin Berkat Mendrofa
Jurnal Pengabdian Kepada Masyarakat Multi Disiplin Vol. 2 No. 4 (2025): JUPENGEN - November
Publisher : CV. SINAR HOWUHOWU

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70134/jupengen.v2i4.898

Abstract

This study aims to analyze the soil conditions at the construction site of the BNKP Hosiana Church by conducting cone penetration tests (CPT) as a basis for designing a safe and efficient foundation system. The CPT was performed to obtain cone resistance (qc), sleeve friction (fs), and friction ratio (Rf) across various soil depths. The results indicate the presence of three main soil layers: a soft clay layer at depths of 0–2 meters with low bearing capacity, a silt or stiff clay layer at 2–6 meters with moderate bearing capacity, and a dense sand or hard layer below 6 meters characterized by high bearing capacity. Analysis based on the Robertson approach suggests that shallow foundations are not recommended due to the weak surface soil conditions. Deep foundations, such as driven piles or bored piles, are considered the most suitable option to reach the competent hard layer capable of supporting the structural load effectively. Therefore, the cone penetration test proves to be an essential tool for strengthening the planning of the BNKP Hosiana Church building project, particularly in ensuring the long-term safety and structural stability of the facility.
Pengukuran Lahan Sekolah Untuk Mendukung Penataan Lingkungan Di SMA Negeri 1 Gunungsitoli Idanoi Dermawan Zebua; Hamedoni Harita; Envilwan Berkat Harefa; Ayler Beniah Ndraha; Ofelius Laia; Ikhtiar Aronifati Daeli; Muhammad Haris Zalukhu; Jurisman Waruwu; Jun Fajar Krisman Giawa; Kevin Berkat Mendrofa; Friski Dermawan Zebua; Rifki Wahyudi Mendrofa
Jurnal Pengabdian Kepada Masyarakat Multi Disiplin Vol. 2 No. 4 (2025): JUPENGEN - November
Publisher : CV. SINAR HOWUHOWU

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70134/jupengen.v2i4.1108

Abstract

This Community Service Program (Pengabdian kepada Masyarakat/PKM) aimed to support school environmental planning through land measurement activities at SMA Negeri 1 Gunungsitoli Idanoi. The main problem faced by the partner school was the absence of accurate and well-documented land measurement data to serve as a basis for environmental arrangement and infrastructure planning. The implementation method consisted of several stages, including coordination with school stakeholders, technical preparation, direct land measurement in the field, data processing, and the formal handover of measurement results to the school. The program applied a participatory approach by involving school representatives during the measurement process as a form of technical assistance and knowledge transfer. The results showed that the land measurement activities successfully produced systematic and reliable data on land area and spatial division, which can be utilized as a foundation for school environmental management and future infrastructure development. In addition, the activity enhanced the school’s understanding of the importance of spatial data in educational environment planning. Therefore, this community service program provided practical and sustainable benefits for the school and strengthened the role of higher education institutions in supporting the improvement of educational environments.
Sinergi Pengabdian Akademisi Dalam Penguatan Perencanaan Infrastruktur Sebagai Narasumber Pembanding Pada Forum Perangkat Daerah Dermawan Zebua; Jun Fajar Krisman Giawa; Kevin Berkat Mendrofa
Jurnal Pengabdian Kepada Masyarakat Multi Disiplin Vol. 3 No. 2 (2026): JUPENGEN - Mei
Publisher : CV. SINAR HOWUHOWU

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70134/jupengen.v3i2.1969

Abstract

The involvement of academics in regional development planning is a tangible implementation of the university's community service mission under the Tri Dharma of Higher Education. This community service activity aimed to strengthen regional infrastructure development planning through the role of academics as resource persons and technical reviewers in the Regional Government Work Plan (RKPD) Forum of Gunungsitoli City for the 2027 planning year. The activity employed a participatory assistance approach by providing technical input, evaluation, and recommendations on development programs proposed by Regional Government Organizations (Organisasi Perangkat Daerah/OPD). The implementation consisted of four stages: preparation, forum implementation, technical recommendation delivery, and evaluation. The results demonstrated that academic participation contributed positively to improving the quality of regional planning documents, particularly in road infrastructure, drainage systems, clean water supply, solid waste management, public building development, disaster risk mitigation, and sustainable infrastructure planning. Interactive discussions between academics and local government agencies generated evidence-based technical recommendations that were considered in refining the 2027 RKPD. Furthermore, the activity strengthened collaboration between higher education institutions and the Government of Gunungsitoli City in promoting participatory, evidence-based, and community-oriented development planning. Therefore, the role of academics as technical reviewers in the Regional Government Work Plan Forum proved effective in enhancing the quality of regional development planning and supporting sustainable, resilient, and efficient infrastructure development.
Strategi Perencanaan Jaringan Transportasi Menggunakan Model Matematika Teknik Sipil Jun Fajar Krisman Giawa
Jurnal Ilmu Ekonomi, Pendidikan dan Teknik Vol. 1 No. 3 (2024): IDENTIK - November
Publisher : CV. SINAR HOWUHOWU

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70134/identik.v2i4.239

Abstract

Transportation network planning is an important aspect in civil engineering that is related to infrastructure development to support community mobility. One way to handle this planning is to use mathematical models. Mathematical models function to model various aspects of the transportation system, from traffic flow, distribution, to efficient infrastructure planning. In this context, models can be applied to minimize costs, travel times, or improve traffic distribution between points in a transportation network. Basically, mathematical models for transportation network planning consist of several types, such as optimization models, flow models, and simulation models. Optimization models are often used to determine the best route or optimal network capacity. Meanwhile, flow models are used to analyze how traffic moves in the network and how system adjustments can reduce congestion. On the other hand, simulation models allow designers to test various scenarios dynamically, providing a more realistic picture of potential problems that may arise in the field. In addition, the use of mathematical models in planning transportation networks also takes into account external factors such as population growth, changes in travel patterns, and economic development. Therefore, a mathematical approach in transport network planning is not only useful for designing efficient infrastructure, but also for planning sustainable traffic management in the long term.
Analisis Penggunaan Tenaga Kerja Lokal Pada Proyek Konstruksi Alexander Adnan Hans Duha; Jun Fajar Krisman Giawa; Jefri Rahmat Daeli; Hamedoni Harita
Jurnal Ilmu Ekonomi, Pendidikan dan Teknik Vol. 3 No. 2 (2026): IDENTIK - Maret
Publisher : CV. SINAR HOWUHOWU

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70134/identik.v3i2.1359

Abstract

This study aims to analyze the utilization of local labor in construction projects in the Nias region and to identify the factors influencing their level of involvement. The research employs a descriptive quantitative approach, with data collected through questionnaires, interviews, and field observations. The sample was selected using a purposive sampling technique, involving construction workers, contractors, and project supervisors. Data analysis was conducted using descriptive statistics and factor analysis to determine the dominant factors affecting the use of local labor. The results indicate that the level of local labor involvement falls into a moderate category, accounting for approximately 60–70% of the total project workforce. The primary factor influencing the use of local labor is workforce competence, followed by contractor policies, education and training levels, as well as geographical and socio-cultural conditions. The use of local labor has a positive impact on increasing community income and employment opportunities; however, challenges remain in terms of work quality due to limited skills. This study concludes that optimizing the use of local labor requires improving competencies through training and certification, as well as strengthening policies that support local workforce empowerment. Synergy between the government, contractors, and the community is essential to achieving inclusive and sustainable construction development in the Nias region.
Co-Authors Alexander Adnan Hans Duha Andrew Christover Harefa Anggerius Loi Ayler Beniah Ndraha Bimawijaya Laia Cristopher Zebua Dermawan Zebua Friski Dermawan Zebua Harefa, Envilwan Berkat Harita, Hamedoni Ignasia Hastuti Halawa Ikhtiar Aronifati Daeli Jefri Rahmat Daeli Jurisman Waruwu Kevin Berkat Mendrofa Laurensius Tema Berkati Jaya Gulo Muhammad Haris Zalukhu Ofelius Laia Piter Telaumbanua Rifki Wahyudi Mendrofa Serta Denius Daeli