Safety risk assessment for tunnel construction: application of AHP to Marmaray project

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2019

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Pehlivanlı, Umuthan

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Apparently, construction industry has one of the highest work accident rates in the World. While construction industry has many sub branches, each and every one of themhasitsowndistinctives. Thesevarietyofprojectsbringspecialtypesofhazards and hazard sources together. Tunnel construction is a very speciﬁc area to work on and creating a safe working environment especially for the underground projects is a challenging task. While conﬁned space works carry different kind of risks, management should be more attractive to create risk mitigation strategies when it is compared with other construction projects. As long as every project has a due date, operations must be completed within a proper time and source management. Risks and hazard sources must be determined. But even the risks and hazard sources are determined and classiﬁed, the main objective should be the prioritization of those risks, so decision makers can give required attention for every project risk. While there is limited sources, it is essential to spend them systematically. This study aims to make a systematic approach to risk prioritisation for tunnel projects. Tunnel construciton projects are complex environments and that is why Analytic Hierarchy Process (AHP) used for the decision making and prioritisation of the risks. In addition to that, interviews have been fulﬁlled with the tunnel construction experts and derived risk scores for especially on Marmaray Project tunnel construction risks. In the end the risk prioritisation list is created. To sum up, scrutinizing and combining AHP with experts comments before and during the site executions of tunnel projects can help to create a safe working environment, give enough attention for different risks and using the project sources properly.

Subject Keywords

Tunneling., AHP, Tunnel Construction Risks, Risk Prioritisation.

URI

http://etd.lib.metu.edu.tr/upload/12624335/index.pdf
https://hdl.handle.net/11511/44916

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Graduate School of Natural and Applied Sciences, Thesis

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Citation Formats

U. Pehlivanlı, “Safety risk assessment for tunnel construction: application of AHP to Marmaray project,” Thesis (M.S.) -- Graduate School of Natural and Applied Sciences. Occupational Health and Safety., Middle East Technical University, 2019.