生産施設向け地震防災システム(T-RESQ F)の開発
地震動予測手法の精度検証
工場等の生産施設では事業継続の観点から地震後早期に生産能力を回復することが求められている。この対策の一つとして緊急地震速報と現地地震計を併用した生産施設向け地震防災システム（T-RESQ F）を開発した。本報告では，過去に得られた強震記録の分析により，現地地震計を用いた地震動強さの予測精度について検証を行った。また，現地地震計と緊急地震速報の予測値を組み合わせることによって，より精度の高い地震動予測が可能であることを実地震を事例として示した。
| キーワード： | 生産施設，地震防災，事業継続，現地地震計，緊急地震速報 |
＊１ 技術センター 建築技術研究所 防災研究室
＊２ 技術センター 技術企画部 情報技術室
Development of Earthquake Disaster Prevention System for Manufacturing Facilities (T-RESQ F)
Validation of a Procedure for Predicting Ground Motion Intensity
Manufacturing plants are required to have a business continuity plan (BCP) for early recovery of production capacity after an earthquake. We have developed an earthquake disaster prevention system for manufacturing facilities (T-RESQ F) to help these facilities continue business after the earthquake. This system predicts the ground motion intensity and building response just before the arrival of the strong motions (S-wave). The system uses both P-wave data from an onsite seismometer and Earthquake Early Warning (EEW) provided by the Japan Meteorological Agency. In this paper, the prediction accuracy was evaluated using the peak ground velocity (PGV) as the index of ground motion intensity. The prediction method using on-site seismometer data produced fewer errors than the method using the first EEW data, indicating that the on-site seismometer method is more effective than the EEW method, especially in the near source regions where the first EEW data probably arrives after the arrival of strong motions. The prediction accuracy was improved by combining the two methods.
| Keywords: | manufacturing plant, earthquake disaster prevention, business continuity, onsite seismometer, Earthquake Early Warning |
*1 Disaster Prevention Research Section, Building Engineering Research Institute, Technology Center
*2 Information Technology Section, Technology Planning Department, Technology Center
