A study on practical use of PE-pipe optical fiber sensor

Research Project

Project/Area Number	15K06198
Research Category	Grant-in-Aid for Scientific Research (C)
Allocation Type	Multi-year Fund
Section	一般
Research Field	Structural engineering/Earthquake engineering/Maintenance management engineering
Research Institution	Setsunan University
Principal Investigator	katagiri shin 摂南大学, 理工学部, 教授 (10554412)
Research Collaborator	YAMANAKA Koudai MURAI Hitoshi
Project Period (FY)	2015-04-01 – 2018-03-31
Project Status	Completed (Fiscal Year 2017)
Budget Amount *help	¥4,940,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥1,140,000) Fiscal Year 2017: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000) Fiscal Year 2016: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000) Fiscal Year 2015: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Keywords	光ファイバセンサ / PE管 / 地盤永久変位 / 地盤変状 / FBG / BOTDR / 埋設管路 / 逆解析 / 実験的研究
Outline of Final Research Achievements	In this study, a model of PE-pipe optical fiber sensor on which surface longitudinal optical fibers are installed was produced. And lateral movement test device in which steel springs are installed to express buried condition was used to bent the PE-pipe sensor and strain distribution was obtained. The pipe strain gauged by the optical fiber and strain gauge showed correct agreement. Further, lateral pipe displacement obtained from the pipe strain agreed the displacement data by the wire displacement meter. Furthermore, back analyzed data of input displacement calculated by effect matrix showed good agreement with input displacement.