TY - JOUR
T1 - Risk analysis using fault-tree analysis (FTA) and analytic hierarchy process (AHP) applicable to shield TBM tunnels
AU - Hyun, Ki Chang
AU - Min, Sangyoon
AU - Choi, Hangseok
AU - Park, Jeongjun
AU - Lee, In Mo
N1 - Funding Information:
This research was supported by a grant from (Program Number: 10 Technology Innovation-E09) Construction Technology Research Program funded by Ministry of Land, Infrastructure and Transport of Korean government.
Publisher Copyright:
© 2015 Elsevier Ltd.
Copyright:
Copyright 2015 Elsevier B.V., All rights reserved.
PY - 2015/6/1
Y1 - 2015/6/1
N2 - In this paper, the potential risk of undesirable events occurring during tunneling with application of a shield tunnel boring machine (TBM) method is discussed along with the risk analysis which can systematically assess overall risk levels. Potential risks and typical scenarios pertaining to shield TBM tunnels have been investigated based on previous case histories and correspondence with experts. The relevant risks from undesirable events were categorized into four groups: cutter-related malfunction, machine blockage or hold-up, mucking problems that hinder transporting excavated materials, and segment defects. A fault-tree set was constructed by grouping risk factors (or causes) into geological, design and construction/management factors. Risk analysis was performed by adopting fault-tree analysis (FTA) and an analytic hierarchy process (AHP) with consideration of the probability and impact of the risks. In addition, the proposed method was reliably validated by comparison with field observation, and thus indicates its applicability to risk management for shield TBM tunneling.
AB - In this paper, the potential risk of undesirable events occurring during tunneling with application of a shield tunnel boring machine (TBM) method is discussed along with the risk analysis which can systematically assess overall risk levels. Potential risks and typical scenarios pertaining to shield TBM tunnels have been investigated based on previous case histories and correspondence with experts. The relevant risks from undesirable events were categorized into four groups: cutter-related malfunction, machine blockage or hold-up, mucking problems that hinder transporting excavated materials, and segment defects. A fault-tree set was constructed by grouping risk factors (or causes) into geological, design and construction/management factors. Risk analysis was performed by adopting fault-tree analysis (FTA) and an analytic hierarchy process (AHP) with consideration of the probability and impact of the risks. In addition, the proposed method was reliably validated by comparison with field observation, and thus indicates its applicability to risk management for shield TBM tunneling.
KW - Analytic hierarchy process (AHP)
KW - Fault-tree analysis (FTA)
KW - Risk analysis
KW - Shield TBM
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U2 - 10.1016/j.tust.2015.04.007
DO - 10.1016/j.tust.2015.04.007
M3 - Article
AN - SCOPUS:84928335392
VL - 49
SP - 121
EP - 129
JO - Tunnelling and Underground Space Technology
JF - Tunnelling and Underground Space Technology
SN - 0886-7798
ER -