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All Journal Seminar Nasional Ilmu Terapan 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)
Kevin Berkat Mendrofa
Universitas Nias
Religion Agriculture, Biological Sciences & Forestry Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Economics, Econometrics & Finance Education Electrical & Electronics Engineering Engineering Languange, Linguistic, Communication & Media 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.
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.
Evaluation Of Soil Bearing Capacity Based On Cone Penetration Test (CPT) Results In Gunungsitoli City, Indonesia Bimawijaya Laia; Jefri Rahmat Daeli; Andrew Christover Harefa; Piter Telaumbanua; Kevin Berkat Mendrofa
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.v3i1.1876

Abstract

Soil bearing capacity is a critical parameter in geotechnical engineering that determines the safety, stability, and performance of foundation systems. Accurate evaluation of bearing capacity is essential for selecting appropriate foundation types and preventing excessive settlement or structural failure. This study aims to evaluate the soil bearing capacity in Gunungsitoli City, Indonesia, based on Cone Penetration Test (CPT) results. A quantitative descriptive research approach was employed using in-situ CPT data collected from six representative investigation points. The analysis involved the interpretation of cone tip resistance (qc), sleeve friction (fs), friction ratio (Rf), soil stratification, and estimation of allowable bearing capacity through established empirical correlations. The results indicate that cone resistance generally increases with depth, reflecting a transition from soft clay and silty sand near the ground surface to dense sandy deposits at greater depths. The estimated allowable bearing capacity ranges from 320 kPa to 500 kPa, depending on local subsurface conditions. These values suggest that isolated footings are suitable for light to medium-rise structures, whereas raft or pile foundations are recommended for heavier infrastructure. Spatial variations in bearing capacity demonstrate the influence of local geological conditions, emphasizing the necessity of conducting site-specific geotechnical investigations before construction. Overall, the study confirms that the Cone Penetration Test provides a reliable, efficient, and economical method for evaluating soil bearing capacity and supports safer and more cost-effective foundation design for future infrastructure development in Gunungsitoli City.
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.
Pengabdian Kepada Masyarakat Melalui Penyusunan Gambar Denah Gedung Gereja BNKP Hosiana Kota Gunungsitoli Bimawijaya Laia; Hamedoni Harita; Ikhtiar Aronifati Daeli; Serta Denius Daeli; Muhammad Haris Zalukhu; Envilwan Berkat Harefa; Dermawan Zebua; Andrew Cristopher Harefa; Kevin Berkat Mendrofa; Piter Telaumbanua
Jurnal Pengabdian Kepada Masyarakat Multi Disiplin Vol. 3 No. 3 (2026): JUPENGEN - Agustus
Publisher : CV. SINAR HOWUHOWU

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70134/jupengen.v3i3.1974

Abstract

This community service activity aimed to implement civil engineering expertise through the preparation of a building floor plan for BNKP Hosiana Church in Gunungsitoli City as a technical document to support the planning and development of worship facilities. The partner's main problem was the absence of a systematically documented floor plan, which hindered renovation planning, building development, and the preparation of technical construction documents. The activity employed a participatory approach consisting of coordination with the partner, field surveys, building measurements, data processing, floor plan preparation using AutoCAD software, validation with the church management, and submission of the final technical document. The results demonstrated that an accurate floor plan reflecting the existing building conditions was successfully produced and validated by the church administrators. The document serves as a reference for future renovation planning, building expansion, construction documentation, and systematic building asset management. In addition to producing a technical drawing, the activity improved the partner's understanding of the importance of technical planning documents in supporting effective, efficient, and sustainable building development. This community service demonstrates that the application of civil engineering knowledge can provide practical solutions to community needs through the provision of high-quality technical planning documents.
PERBANDINGAN DATA DUKUNGAN TANAH HASIL ANALISIS SONDIR DENGAN METODE EMPIRIS MEYERHOF DAN SCHMERTMANN Pasrah Iman Anugerah Putra Ziliwu; Jefri Rahmat Daeli; Kevin Berkat Mendrofa; Ingat Selamat Ziliwu; Andrew christofer Harefa; Putra Jaya Laoli; Dermawan Zebua
Seminar Nasional Ilmu Terapan Vol 9 No 1 (2025): Vol 9 No 1 (2025): Seminar Nasional Ilmu Terapan (SNITER) 2025
Publisher : Universitas Widya Kartika Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Penelitian ini bertujuan untuk membandingkan hasil perhitungan daya dukung tanah berdasarkan data uji sondir (Cone Penetration Test) menggunakan dua metode empiris, yaitu Meyerhof dan Schmertmann. Data diperoleh dari pengujian di Lokasi X hingga kedalaman 5,6 meter dengan interval 0,2 meter. Nilai perlawanan konus (qc) digunakan untuk menghitungdaya dukung ultimit (q?????) dan daya dukung izin (q???). Hasil analisis menunjukkan bahwa daya dukung meningkat seiring kedalaman dan metode Meyerhof menghasilkan nilai yang lebih tinggi dibandingkan Schmertmann dengan selisih sekitar 25–35%. Perbedaan ini disebabkan oleh pendekatan analisis Meyerhof yang lebih sensitif terhadap nilai qc tinggi, sementaraSchmertmann mempertimbangkan deformasi tanah. Berdasarkan interpretasi grafik, lapisan tanah keras ditemukan pada kedalaman sekitar 3–3,5 meter yang direkomendasikan sebagai kedalaman pondasi optimal. Hasil penelitian ini diharapkan dapat menjadi acuan dalam menentukan daya dukung tanah secara empiris menggunakan data uji sondir. kolom.
Analisis Dampak Pembangunan Infrastruktur Terhadap Lingkungan Kevin Berkat Mendrofa; Agus Rahmat Ndruru; Desman Telaumbanua; Muhammad Haris Zalukhu
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.v3i2.1360

Abstract

Infrastructure development plays a crucial role in promoting economic growth and improving community welfare, particularly in island regions such as Nias. However, such development activities also have the potential to generate negative environmental impacts. This study aims to analyze the environmental impacts of infrastructure development in Nias and to identify possible mitigation efforts. The research employs a descriptive qualitative approach, with data collected through observation, interviews, and documentation. The results indicate that infrastructure development provides positive impacts, including improved accessibility, regional connectivity, and local economic growth. Nevertheless, negative impacts were also identified, such as soil erosion, water pollution due to sedimentation, air quality degradation, and loss of biodiversity. These impacts occur during both the construction and operational phases. Therefore, the implementation of sustainable development principles is essential through environmental impact assessment (EIA), proper waste management, and strict supervision to minimize adverse effects. This study is expected to serve as a reference for formulating environmentally sustainable infrastructure development policies, especially in island regions.
Co-Authors Agus Rahmat Ndruru Andrew christofer Harefa Andrew Christover Harefa Andrew Cristopher Harefa Ayler Beniah Ndraha Bimawijaya Laia Dermawan Zebua Desman Telaumbanua Friski Dermawan Zebua Harefa, Envilwan Berkat Harita, Hamedoni Ikhtiar Aronifati Daeli Ingat Selamat Ziliwu Jefri Rahmat Daeli Jun Fajar Krisman Giawa Jurisman Waruwu Laurensius Tema Berkati Jaya Gulo Muhammad Haris Zalukhu Ofelius Laia Pasrah Iman Anugerah Putra Ziliwu Piter Telaumbanua Putra Jaya Laoli Rifki Wahyudi Mendrofa Serta Denius Daeli