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Journal : Civil Engineering Journal

Risk-Based Method-Technology Integration on Spun Pile Production for Product and Service Quality Hidayawanti, Ranti; Latief, Yusuf; Gaspersz, Vincent
Civil Engineering Journal Vol 10, No 11 (2024): November
Publisher : Salehan Institute of Higher Education

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.28991/CEJ-2024-010-11-015

Abstract

The research aims to identify the risk factors and the medium-high risks to use as the basis for the innovative method of spun pile manufacturing technology. The research uses the Delphi method to analyze and review the validity of content construction, pilot and respondent surveys, focus group discussions, and expert validation. The findings show utilizing and optimizing the technology on production machinery is influential for results on both product and service quality. The dominance category in the medium-risk technology indicates the need for improvement in the operator's competence. The result also indicates the largest medium risk is during the initial integration, Cutting and Heading at 84%, and the final step, Stressing and Spinning, at 59%. The research improvement to map the production process is related to the medium and high risks to know where and how the industry can improve. This risk-based technology and integration method is a proposed method using an approach to innovation management by reducing the risk values. Innovation by improving the standard operational procedure (SOP) was based on the relation of each activity during the integration within the risk category of medium-medium, medium-high, and high-high. We recommend improving SOP and utilizing information technology on precision for both subprocesses. Doi: 10.28991/CEJ-2024-010-11-015 Full Text: PDF
Fuzzy Bayesian Belief Networks Method on Risk Assessment of EPC Pipeline Project Yusuf, Muhammad; Latief, Yusuf; Rarasati, Ayomi Dita; Trigunarsyah, Bambang; Laksono, Naufal Budi
Civil Engineering Journal Vol 11, No 3 (2025): March
Publisher : Salehan Institute of Higher Education

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.28991/CEJ-2025-011-03-013

Abstract

Subsea gas pipeline projects are experiencing significant technical and managerial challenges across Engineering, Procurement, and Construction (EPC) phases. To address the challenges, effective risk management in the early project phases is essential to mitigating cascading failures that cause significant schedule delay and cost overrun. Therefore, this study aimed to apply the Fuzzy Bayesian Belief Networks (FBBNs) method to model risk assessment during EPC phases. The findings showed that FBBNs made it possible for a new way to evaluate risks, find interdependencies, and guess what would happen next, which created a strong framework for reducing risk. Based on probabilistic analysis as supported by expert elicitation, risks from the early phase of engineering and procurement showed high probabilities of occurrence, including Incompetent Personnel, Project Mismanagement, Unsupportive Stakeholder, Corruption, and Design Inaccuracies. A significant impact was also observed on Construction Rework, Material Quantity Increase, Construction Delay, and Cost Overrun. The results showed the importance of addressing systemic issues early in the EPC project lifecycle, emphasizing personnel competency, design accuracy, strategic and project management planning, procurement management, stakeholder management, and constructability preparation to reduce vulnerabilities. This integrated method aimed to enhance accuracy predictions by determining causal risk probability relationships in high-risk offshore environments of EPC subsea gas pipeline projects. Doi: 10.28991/CEJ-2025-011-03-013 Full Text: PDF
Co-Authors Abdur Rohim Boy Berawi Achirwan Achirwan Alin Veronika Alin Veronika Alin Veronika, Alin Alwan Muhammad Naufal Amalia Dwi Purnamasari Andreas Wibowo Ardiyanto, Fahreza Astrid Dwi Lestari Ayomi D. Rarasati Ayu Herzanita Bambang Trigunarsyah Bambang Trigunarsyah Bambang Trigunarsyah, Bambang Batara Sirait Dameria Lady Hertina Lumban Raja Dhia Tsuraya Nisrina Diana Rohmatul Fitria Djoko M Hartono Dyah Ayu Pangastuti Eddy Subiyanto Edhi Tri Budi Soesilo, Edhi Tri Budi Febriansyah, Eki Hikmah Ferdinand, Joshua Ginting, Yan Hasiholan, Yosua Togar Hidayanti, Ranti Hidayawanti, Ranti Idi Namara Imran H. Mohammad Ineswari Syifa Hayuningtiyas, Ineswari Syifa Ismeth Abidin Ismeth Abidin Ismeth Abidin, Ismeth Ismeth S. Abidin Ismeth S. Abidin, Ismeth S. Isti Surjandari Jade Sjafrecia Petrociany Janrivai Adiman Silalahi Karim, Rully Andhika Kurniawati, Eva Andrian Laksono , Naufal Budi Laksono, Naufal Laksono, Naufal Budi Leni Sagita Riantini Leni Sagita Riantini, Leni Sagita Leni Sagita Supriadi, Leni Lestari, Astrid Dwi Luh Putu Ratna Sundari Lusiana Indarwati M. Fanshurullah Asa M. Fanshurullah Asa, M. Fanshurullah Machfudiyanto, Rossy Armyn Mohammed Ali Berawi Muhammad Yusuf Mulyono, Bagjo Naufal Budi Laksono Naufal Budi Laksono Novika Candra Fertilia Pangastuti, Dyah Ayu Paulus Setyo Nugroho Perdana Miraj Pondaag, Reynard Purba, Agnes Putika Yussi Putro, Anggoro Rahayu S. Arifin, Rahayu S. Rahman, Deansa Agya Rarasati, Ayomi Dita Ratih Fitriani Renti Odor Siahaan Retyaning Utami Retyaning Utami, Retyaning Rika Anggraini Rohmatul F, Diana Saleh, Toha Saputro, Danang Eko Setyo Sarwanto Moersidik Silalahi, Janrivai Adiman Sutjiningsih M, Dwita Toha Saleh Triasa Maryadini Utami, Retyaning Puji Vincent Gaspersz Wisnu Isvara, Wisnu Yussi, Putika Zaman, Alvian Amaly Fasha Najmu