Application Of Fibre Bragg Grating Sensor In Mini Pile Performance And Behaviour Monitoring
chin Tsang, Amirhassan Mehdizadeh, Guillermo Narsilio, mahdi Miri Disfani
Australian Geomechanics Society | Published : 2019
Fibre Bragg grating (FBG) sensor technology has been recognised as a reliable strain sensing system in geotechnical engineering due to its certain advantages over traditional electrical resistance strain gauges. However, the uses of FBG sensors in geotechnical applications are still limited. This paper demonstrates an application of FBG sensors for measuring axial strain in a driven mini pile. Installation and calibration methods, and data interpretation of FBG sensors are discussed. After calibration, mini pile was instrumented with FBG sensors and driven into a medium to dense sand deposit using a high-frequency handheld jackhammer, followed by a quick pull-out pile load test. The results ..View full abstract
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Awarded by Australian Research Council
This project was funded by the Australian Research Council (ARC) Linkage scheme – LP160100828. The authors acknowledge the financial and technical sup-port from our industry partner, Surefoot Pandoe Pty Ltd. Camilo Pineda, senior structural engineer at Surefoot is acknowledged for his contribution to this research.