THE USE OF OPTICAL FIBRES IN GEOTECHNICAL MONITORING

The proposed area of dissertation research on geotechnical monitoring involves the use of optical fibres to track deformation trends in the construction environment and in selected structures, i.e., in the subsoil and the immediate vicinity of structures, as well as within the structures themselves. This also includes the use of appropriate instrumentation elements based on electromechanical sensors to supplement and frequently duplicate functions, thereby ensuring partial interchangeability of methods for the assembly of robust monitoring systems.

In fibre optics, we use local sensor systems based on the principle of optical gratings, known as Fibre Bragg Gratings, often in series configurations with the FBGuard analyser, and, more recently, a distributed strain and temperature sensing system based on Rayleigh scattering with the Luna OdiSI 7000 analyser.

This involves the development of applications and measurement instruments, as well as their use in Structural Health Monitoring (SHM), increasingly also for BIM systems.