Application of Brillouin Scattering-Based Distributed Optical Fiber Strain Sensor to Actual Concrete Piles
Summary :
We applied a Brillouin-OTDR, which is a distributed optical fiber strain sensor, to two actual concrete piles. The piles were made for use as highway foundations by on-site-pouring at construction sites and underwent load testing to ensure that their characteristics satisfied the required levels. Compressive strain caused by the load exerted on the piles was measured to an accuracy of 0.01% and a spatial resolution of 1 m. This measurement was obtained by embedding a strain-sensing optical fiber in the piles during construction. The results showed that there was good agreement between the measured strain and both the theoretical values and the values obtained with a conventional strain gauge based on electric resistance. Furthermore, the obtained strain distribution reflected the effects of friction between the pile surface and the ground. These results demonstrate the effectiveness of the Brillouin-OTDR for this kind of testing and also as a means of obtaining detailed data on the strain in concrete piles.
- Publication
- IEICE TRANSACTIONS on Electronics Vol.E85-C No.4 pp.945-951
- Publication Date
- 2002/04/01
- Publicized
- Online ISSN
- DOI
- Type of Manuscript
- Special Section PAPER (Special Issue on Optical Fibers and Devices)
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Hiroshige OHNO, Hiroshi NARUSE, Toshio KURASHIMA, Atsushi NOBIKI, Yasuomi UCHIYAMA, Yuki KUSAKABE, "Application of Brillouin Scattering-Based Distributed Optical Fiber Strain Sensor to Actual Concrete Piles" in IEICE TRANSACTIONS on Electronics,
vol. E85-C, no. 4, pp. 945-951, April 2002, doi: .
Abstract: We applied a Brillouin-OTDR, which is a distributed optical fiber strain sensor, to two actual concrete piles. The piles were made for use as highway foundations by on-site-pouring at construction sites and underwent load testing to ensure that their characteristics satisfied the required levels. Compressive strain caused by the load exerted on the piles was measured to an accuracy of 0.01% and a spatial resolution of 1 m. This measurement was obtained by embedding a strain-sensing optical fiber in the piles during construction. The results showed that there was good agreement between the measured strain and both the theoretical values and the values obtained with a conventional strain gauge based on electric resistance. Furthermore, the obtained strain distribution reflected the effects of friction between the pile surface and the ground. These results demonstrate the effectiveness of the Brillouin-OTDR for this kind of testing and also as a means of obtaining detailed data on the strain in concrete piles.
URL: https://global.ieice.org/en_transactions/electronics/10.1587/e85-c_4_945/_p
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@ARTICLE{e85-c_4_945,
author={Hiroshige OHNO, Hiroshi NARUSE, Toshio KURASHIMA, Atsushi NOBIKI, Yasuomi UCHIYAMA, Yuki KUSAKABE, },
journal={IEICE TRANSACTIONS on Electronics},
title={Application of Brillouin Scattering-Based Distributed Optical Fiber Strain Sensor to Actual Concrete Piles},
year={2002},
volume={E85-C},
number={4},
pages={945-951},
abstract={We applied a Brillouin-OTDR, which is a distributed optical fiber strain sensor, to two actual concrete piles. The piles were made for use as highway foundations by on-site-pouring at construction sites and underwent load testing to ensure that their characteristics satisfied the required levels. Compressive strain caused by the load exerted on the piles was measured to an accuracy of 0.01% and a spatial resolution of 1 m. This measurement was obtained by embedding a strain-sensing optical fiber in the piles during construction. The results showed that there was good agreement between the measured strain and both the theoretical values and the values obtained with a conventional strain gauge based on electric resistance. Furthermore, the obtained strain distribution reflected the effects of friction between the pile surface and the ground. These results demonstrate the effectiveness of the Brillouin-OTDR for this kind of testing and also as a means of obtaining detailed data on the strain in concrete piles.},
keywords={},
doi={},
ISSN={},
month={April},}
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TY - JOUR
TI - Application of Brillouin Scattering-Based Distributed Optical Fiber Strain Sensor to Actual Concrete Piles
T2 - IEICE TRANSACTIONS on Electronics
SP - 945
EP - 951
AU - Hiroshige OHNO
AU - Hiroshi NARUSE
AU - Toshio KURASHIMA
AU - Atsushi NOBIKI
AU - Yasuomi UCHIYAMA
AU - Yuki KUSAKABE
PY - 2002
DO -
JO - IEICE TRANSACTIONS on Electronics
SN -
VL - E85-C
IS - 4
JA - IEICE TRANSACTIONS on Electronics
Y1 - April 2002
AB - We applied a Brillouin-OTDR, which is a distributed optical fiber strain sensor, to two actual concrete piles. The piles were made for use as highway foundations by on-site-pouring at construction sites and underwent load testing to ensure that their characteristics satisfied the required levels. Compressive strain caused by the load exerted on the piles was measured to an accuracy of 0.01% and a spatial resolution of 1 m. This measurement was obtained by embedding a strain-sensing optical fiber in the piles during construction. The results showed that there was good agreement between the measured strain and both the theoretical values and the values obtained with a conventional strain gauge based on electric resistance. Furthermore, the obtained strain distribution reflected the effects of friction between the pile surface and the ground. These results demonstrate the effectiveness of the Brillouin-OTDR for this kind of testing and also as a means of obtaining detailed data on the strain in concrete piles.
ER -
English
