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Fiber Bragg Grating (FBG) sensors are used worldwide in structural health monitoring as a highly effective strain sensing method. Compared to traditional strain sensing methods in geotechnics, such as measurement by extensometers, deformeters, or strain gauges, FBG technology is beneficial in many issues, such as small dimensions of the sensor, easy and fast installation, long-term stability, immunity to electromagnetic interference or possibility of having dozens of sensing points on a single measuring cable. One...

The condition of underlying rock and footing masonry affects significantly technical condition of historical monuments. The caused subsidence may affect the origin of construction cracks, which may directly influence its stability. These impacts are mostly indirect and they are difficult to identify due to information lack. Footing masonry and long-term changes in the underlying rock are hidden underneath existing ground and floor level. If records related to foundations do exist, they are frequently fragmental. M...