한국지반공학회:학술대회논문집 (Proceedings of the Korean Geotechical Society Conference)

한국지반공학회 (Korean Geotechnical Society)
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FBG 센서를 내장한 스마트 앵커의 개발과 적용

Development and Application of A Smart Anchor with Optical FBG Sensors

  • 김영상 (전남대학교 건설.환경공학부) ;
  • 서동남 (전남대학교 해양공학과) ;
  • 김재민 (전남대학교 건설.환경공학부) ;
  • 이승래 (한국과학기술원, 건설 및 환경공학과)
  • Kim, Young-Sang (Division of Civil & Environmental Eng., Chonnam National Univ.) ;
  • Suh, Dong-Nam (Dept. of Ocean Eng., Chonnam National Univ.) ;
  • Kim, Jae-Min (Division of Civil & Environmental Eng., Chonnam National Univ.) ;
  • Lee, Seung-Rae (Dept. of Civil & Environmental Eng., KAIST)
  • 발행 : 2008.03.28
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초록

With the substantial increase of the size of structure, management and monitoring of excavation for the foundation construction becomes more difficult. Therefore, massive collapses which are related to retaining wall recently increase. However, since the study on measuring and monitoring the pre-stressing force of anchor is insufficient, behavior of anchor may not be predicted and monitored appropriately by the existing strain gauge type monitoring system. FBG Sensor, which is smaller than strain gauge and has better durability and does not have a noise from electromagnetic waves, was adapted to develope a smart anchor. A series of pullout tests were performed to verify the feasibility of smart anchor and find out the load transfer mechanism around the steel wire fixed to rock with grout.

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