Abstract
Pile cover thickness is a major concern of geotechnical engineering. In order to solve this problem, a new monitoring technology has been developed. This technology is based on the temperature monitoring of the concrete pile at early age using distributed fibre optic sensors (DFOS). It is shown that the measured curing temperature of pile is closely related to the concrete cover thickness. This relationship between curing temperature profile and pile cover thickness can be calculated using finite element analysis. In one case study, the calculated pile cover thickness varies with depth which shows a good match with the concrete cover thickness profile obtained by in-situ sonic calliper.
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Acknowledgments
This research was conducted within the Centre for Smart Infrastructure and Construction of the University of Cambridge, funded by EPSRC, Innovate UK and Technology Strategy Board. Their financial assistance is gratefully acknowledged. We thank Professor Kenichi Soga, (UC Berkeley) for comments that greatly improved the research results.
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Rui, Y., Sun, Q. (2020). Measurement of Pile Cover Thickness Using Distributed Fibre Optic Sensors. In: Correia, A., Tinoco, J., Cortez, P., Lamas, L. (eds) Information Technology in Geo-Engineering. ICITG 2019. Springer Series in Geomechanics and Geoengineering. Springer, Cham. https://doi.org/10.1007/978-3-030-32029-4_59
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DOI: https://doi.org/10.1007/978-3-030-32029-4_59
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