Application of Distributed Fibre Optic Cables in Piles

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A high spatial resolution distributed fibre optic sensing system for measuring strain and temperature was used to instrument
fourteen single piles subjected to general subsidence. Thirteen piles were driven (six steel and seven precast concrete) and one was a cased
continuous flight auger pile, CFA. The CFA pile was subjected to a static loading test. The distributed fibre optic analyser measured the spectral
shift in the fibre Rayleigh scatter to obtain strain and temperature data. The seasonal temperature changes in the surficial soil layers showed to
influence the strain records. Several lessons were learnt from the application of distributed fibre optic sensors in piles, such as installation
methods, influence of temperature, and performance of fibre optic cables.
OriginalsprogEngelsk
Artikelnummer12
TidsskriftGeotechnical Engineering Journal of the SEAGS & AGSSEA
Vol/bind51
Nummer1
Sider (fra-til)94-102
Antal sider9
ISSN0046-5828
StatusUdgivet - 2020

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