Fiber-optic sensor applications in civil and geotechnical engineering

被引：143

作者：

Habel W.R. ^{[1
]}

Krebber K. ^{[1
]}

机构：

[1] Federal Institute for Materials Research and Testing, Division VIII.1: Measurement and Testing Technology

来源：

Photonic Sensors | 2011年 / 1卷 / 3期

关键词：

Distributed sensor; Earthquake damage assessment; Fiber-optic sensor; Geotextiles; Monitoring; pH sensor; Steel-reinforced structures;

D O I：

10.1007/s13320-011-0011-x

中图分类号：

学科分类号：

摘要：

Different types of fiber-optic sensors based on glass or polymeric fibers are used to evaluate material behavior or to monitor the integrity and long-term stability of load-bearing structure components. Fiber-optic sensors have been established as a new and innovative measurement technology in very different fields, such as material science, civil engineering, light-weight structures, geotechnical areas as well as chemical and high-voltage substations. Very often, mechanical quantities such as deformation, strain or vibration are requested. However, measurement of chemical quantities in materials and structure components, such as pH value in steel reinforced concrete members also provides information about the integrity of concrete structures. A special fiber-optic chemical sensor for monitoring the alkaline state (pH value) of the cementitious matrix in steel-reinforced concrete structures with the purpose of early detection of corrosion-initiating factors is described. The paper presents the use of several fiber-optic sensor technologies in engineering. One example concerns the use of highly resolving concrete-embeddable fiber Fabry-Perot acoustic emission (AE) sensors for the assessment of the bearing behaviour of large concrete piles in existing foundations or during and after its installation. Another example concerns fiber Bragg grating (FBG) sensors attached to anchor steels (micro piles) to measure the strain distribution in loaded soil anchors. Polymer optical fibers (POF) can be - because of their high elasticity and high ultimate strain - well integrated into textiles to monitor their deformation behaviour. Such "intelligent" textiles are capable of monitoring displacement of soil or slopes, critical mechanical deformation in geotechnical structures (dikes, dams, and embankments) as well as in masonry structures during and after earthquakes. © The Authors(s) 2010.

引用

页码：268 / 280

页数：12

共 12 条

[1]

Schallert M., Stahlmann J., Habel W.R., Strukturintegrierter faseroptischer Mikrodehnungsaufnehmer für die Bewertung von Betonpfählen mit dynamischen Pfahlprüfmethoden, Messen in der Geotechnik 2010, pp. 265-286, (2010)

[2]

Schallert M., Habel W.R., Gobel I., Stahlmann J., Wardinghus P., Dynamic, and static testing of concrete foundation piles with structure-integrated fiber optic sensors, Proc. of the 8th International Conference on Application of Stress Wave Theory to Piles, pp. 625-635, (2008)

[3]

Schallert M., Habel W.R., Hofmann D., Strukturanalyse von Betonpfählen Durch Eingebettete Faseroptische Sensoren (Analysis of Concrete Foundation Piles Using Structure-Integrated Fiber-Optic Sensors in Tm-Technisches Messen, 75, pp. 485-500, (2008)

[4]

Habel W.R., Gutmann T., Embedded Quasi-distributed Fiber Optic Sensors for Long-term Monitoring of 4,500 kN Rock Anchors in the Eder Gravity Dam in Germany, Proc. of SHMII-2 Conference, 1, pp. 289-297, (2006)

[5]

Nother N., Wosniok A., Krebber K., Thiele E., A Distributed fiber optic sensor system for dike monitoring using Brillouin optical frequency domain analysis, Proc. Conf. on Smart Structures and Materials, 6933, (2008)

[6]

Wosniok A., Nother N., Krebber K., Thiele E., Distributed monitoring of mechanical deformation in river dikes, Proc. of the Conf. Eurosensors XXII Dresden, pp. 1457-1460, (2008)

[7]

Lenke P., Liehr S., Krebber K., Weigand F., Thiele E., Distributed strain measurement with polymer optical fiber integrated in technical textiles using the optical time domain reflectometry technique, Proc. of the 16th International Pof Conference, pp. 21-24, (2007)

[8]

Liehr S., Wendt M., Krebber K., Distributed strain measurement in perfluorinated polymer optical fibers using optical frequency domain reflectometry, Meas. Sci. Technol., 21, 9, pp. 0940231-0940236, (2010)

[9]

Liehr S., Lenke P., Wendt M., Krebber K., Seeger M., Thiele E., Metschies H., Gebreselassie B., Muenich J.C., Polymer optical fiber sensor for distributed strain measurement and application in structural health monitoring, IEEE Sensors J., 9, 11, pp. 1330-1338, (2009)

[10]

Lenke P., Liehr S., Krebber K., Improvements of the distributed strain sensor based on optical time domain reflectometry measurement in polymer optical fibers, Proc. 17th Intern. Conf. on Plastic Optical Fibers, (2008)

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