PROPOSAL OF EFFECTIVE INSTALLATION FOR EARTHQUAKE INSPECTION SENSORS FOR RAILWAY LINES

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  • NANAMI Kengo
    （公財）鉄道総合技術研究所 鉄道地震工学研究センター
  • WADA Kazunori
    （公財）鉄道総合技術研究所 鉄道地震工学研究センター
  • TOYOOKA Akihiro
    （公財）鉄道総合技術研究所 鉄道地震工学研究センター

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Other Title
  • 鉄道路線を対象とした地震時点検用センサーの効果的な配置法の提案

Abstract

<p> In recent years, such as the 2018 Northern Osaka Earthquake, there have been some cases in which railway operations have been stopped for a long time for inspection, although there is almost no damage to the railway structure. Here, by utilizing technologies such as sensing, which have developed remarkably in recent years, it is conceivable to save labor in inspections and achieve early recovery. However, there are a wide variety of inspection points on railways, and it is not easy from a cost standpoint to attach sensors to all the target points. Therefore, in this paper, we propose an efficient sensor placement method for railroad tracks, taking into account inspection time and travel time, targeting bearings as sensor installation locations. By adopting the proposed method, it was verified that the layout for effectively reducing the inspection time can be evaluated while greatly reducing the calculation time compared to the case of performing a round-robin calculation.</p>

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