New distributed fibre optic 3DSensor with thermal delf-compensation system: design, research and field proof application inside geotechnical structure
Authors:
- Łukasz Bednarski,
- Rafał Sieńko,
- Marcin Grygierek,
- Tomasz Howiacki
Abstract
Thanks to the dynamic development of advanced building technologies as well as the growing awareness, experience and responsibilities of engineers, structural health monitoring systems (SHM) are increasingly applied in civil engineering and geotechnical applications. This is also facilitated by the construction law and standard requirements, e.g., the observation method for geotechnical structures described in the Eurocode 7. Still, the most common approach is to apply spot sensors in selected points of the structure to validate theoretical models, numerical simulations and support technical assessments by involving statistic and approximation methods. The main limitation of spot sensing is the inability to detect localized damages such as cracks, fractures, sinkholes or shear planes. Thus, such analysis is subject to considerable uncertainty, especially within geotechnical structures, characterized by random mechanical parameters that change with location, but also over time. Another approach is based on distributed fibre optic sensors (DFOS), which are finding a growing acceptance in laboratory and field projects, overcoming limitations of conventional measurements. The design and applications of new DFOS dedicated for 3D displacement sensing are described hereafter in the article. The novelty of the presented solution lies in several features, including design, application, production technology and materials. This article is focused on the operational rules governing DFOS and proving their effectiveness in laboratory and geotechnical field applications.
- Record ID
- CUT2518a66016bc481a87c7bc2e8f782fdf
- Publication categories
- ;
- Author
- Journal series
- Sensors, ISSN , e-ISSN 1424-8220, Biweekly
- Issue year
- 2021
- Vol
- 21
- No
- 15
- Pages
- [1-26]
- Article number
- 5089
- Other elements of collation
- fot.; rys.; schem.; tab.; wykr.; Bibliografia (na s.) - 24-26; Bibliografia (liczba pozycji) - 54; Oznaczenie streszczenia - Abstr.; Numeracja w czasopiśmie - Vol. 21, Iss. 15, Spec. Iss.
- Substantive notes
- Special Issue: Sensors and Measurements in Geotechnical Engineering
- Keywords in English
- distributed fibre optic sensing DFOS, composite, 3DSensor, displacements, settlements, in situ measurements, thermal compensation, embankment, geotechnics, laboratory
- DOI
- DOI:10.3390/s21155089 Opening in a new tab
- URL
- https://www.mdpi.com/1424-8220/21/15/5089 Opening in a new tab
- Language
- eng (en) English
- License
- Score (nominal)
- 100
- Publication indicators
- = 14
- Additional fields
- Indeksowana w: Web of Science, Scopus
- Uniform Resource Identifier
- https://cris.pk.edu.pl/info/article/CUT2518a66016bc481a87c7bc2e8f782fdf/
- URN
urn:pkr-prod:CUT2518a66016bc481a87c7bc2e8f782fdf
* presented citation count is obtained through Internet information analysis, and it is close to the number calculated by the Publish or PerishOpening in a new tab system.