施設の運用に着目したリスクコントロール手法の提案

概要

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Damages in plant facilities caused by natural disaster such as big earthquake could leads to catastrophic disaster such as fire or leakage of hazardous substances, which might have serious impacts on neighboring residents and society, and impair significantly the credibility of the plant owner. From the viewpoint of CSR (Corporate Social Responsibility), the implementation of seismic countermeasures for seismic upgrading of the plant facilities increases rapidly in number. However, if the level of seismic upgrading of facilities exceeds a critical limit, in such cases, it is sometimes difficult to propose the countermeasures using original structures and existing spaces around them. In this study, the procedure of seismic risk mitigation focused on operation of facility under control of volume of contents is proposed. Then a flat-bottomed cylindrical tank of a refinery is selected as a sample, and the proposed framework of this procedure that combines the method of seismic upgrading and control of volume of contents is applied to the tank to show its usefulness of this procedure.
2007-05-30