Distributed fibre optic strain measurements on a driven pile

Helmut Woschitz; Christoph Monsberger; Martin Hayden

doi:10.1117/12.2236986

30 May 2016 Distributed fibre optic strain measurements on a driven pile

Helmut Woschitz, Christoph Monsberger, Martin Hayden

Proceedings Volume 9916, Sixth European Workshop on Optical Fibre Sensors; 99162P (2016) https://doi.org/10.1117/12.2236986
Event: Sixth European Workshop on Optical Fibre Sensors (EWOFS'2016), 2016, Limerick, Ireland

Abstract

In civil engineering pile systems are used in unstable areas as a foundation of buildings or other structures. Among other parameters, the load capacity of the piles depends on their length. A better understanding of the mechanism of load-transfer to the soil would allow selective optimisation of the system. Thereby, the strain variations along the loaded pile are of major interest. In this paper, we report about a field trial using an optical backscatter reflectometer for distributed fibre-optic strain measurements along a driven pile. The most significant results gathered in a field trial with artificial pile loadings are presented. Calibration results show the performance of the fibre-optic system with variations in the strain-optic coefficient.

Citation Download Citation

Helmut Woschitz, Christoph Monsberger, and Martin Hayden "Distributed fibre optic strain measurements on a driven pile", Proc. SPIE 9916, Sixth European Workshop on Optical Fibre Sensors, 99162P (30 May 2016); https://doi.org/10.1117/12.2236986

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