Prioritization of Hazardous Zones Using an Advanced Risk Management Model Combining the Analytic Hierarchy Process and Fuzzy Set Theory

Kibeom Kwon, Minkyu Kang, Dongku Kim and Hangseok Choi ()
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Kibeom Kwon: School of Civil, Environmental and Architectural Engineering, Korea University, Seoul 02841, Republic of Korea
Minkyu Kang: School of Civil, Environmental and Architectural Engineering, Korea University, Seoul 02841, Republic of Korea
Dongku Kim: Department of Geotechnical Engineering Research, Korea Institute of Civil Engineering and Building Technology (KICT), Goyang 10223, Republic of Korea
Hangseok Choi: School of Civil, Environmental and Architectural Engineering, Korea University, Seoul 02841, Republic of Korea

Sustainability, 2023, vol. 15, issue 15, 1-15

Abstract: Risk management plays a vital role in ensuring the safety and efficiency of tunnel construction by considering various factors, including uncertainties associated with concurrent adverse sources. One key aspect of risk management is prioritizing hazardous zones to devise an optimal countermeasure plan within time and cost constraints. This study developed an advanced tunnel risk management model, combining the analytic hierarchy process (AHP) and fuzzy set theory (FST). The model derived the impact using AHP and the probability using FST. By selectively combining causal factors that met the selection criterion, the risk of each hazardous zone was determined, enabling the prioritization of identified hazardous zones. The model application results indicated that causal combinations associated with significant tunnel convergence posed a relatively high risk. Moreover, the hazardous zones where unstable ground formations were excavated by a gripper tunnel boring machine (TBM) were revealed as the most vulnerable locations. Consequently, adopting a shield TBM or implementing ground reinforcement is recommended. Overall, the developed model effectively prioritizes identified hazardous zones and provides an optimal countermeasure plan, contributing to the overall safety and efficiency of the operations.

Keywords: tunnel; risk; prioritization; analytic hierarchy process (AHP); fuzzy set theory (FST) (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2023
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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