Analysis on Risk Factors of Reactor Containment Building Construction using Analytic Hierarchy Process

Abstract

Since the construction of Kori 1 was completed in 1978, the construction projects for nuclear power plant are increasingly expanded into domestic and foreign sites. However, some of construction sites of nuclear power plant have the problems of process delay and cost loss due to lack of ability of risk management. The construction of reactor containment building in nuclear power plant is especially dotted with many risk factors because it needs professional skills and large-scale resources due to long duration compared with different construction phase. Therefore, it needs the study that analyzes risk factors expected in construction of reactor containment building and suggests way of stable performance of projects. So, this study assesses risk factors of construction of reactor containment building. For the objectives, this study uses survey for group of minority specialists of 36 experts. The risks of 24 factors is classified by criterions of process, cost, safety, and quality and the results of assessment is analyzed by analytic hierarchy process. As the results, the importance and priority of risk factors classified by each criterion were calculated and the applicability of analytic hierarchy process was identified to analyze risk factors of nuclear power plant construction. These will be baseline data for risk management in construction phase of reactor containment building.

Comparison of Risk Assessment for a Nuclear Power Plant Construction Project Based on Analytic Hierarchy Process and Fuzzy Analytic Hierarchy Process

“…Risk is an umbrella term covering both the possibility of damage and the loss of opportunities [8]. Considering this definition, risk can serve as an obstacle to the attainment of a goal in any construction project [6]. Therefore, risk analysis has the goal of adjusting risk factors to be in an optimal or acceptable condition by identifying and assessing D.-W. Shin et al the risk factors in a systematic manner.…”

“…Other related studies include a cost risk analysis for construction projects using FAHP [4], and the development of a risk assessment model using AHP for overseas construction projects [5]. However, the risks inherent in a construction project were drawn from a wider perspective in the previous studies, and it is difficult to identify the specific of risks to each unit of work type [6].…”