Vibration measurements by Distributed Acoustic Sensing : interpretation results feasibility study

In December 2019, Deltares conducted a field test to measure ground vibrations from various sources using both accelerometers and buried glass fibre. The main goal of the project was to assess the feasibility of using glass fibres in soil to measure vibration levels and evaluate the expected accuracy. This report presents a preliminary comparison of the results. It includes a literature review on the topic, the development of basic techniques for processing fibre optic data, and a comparison between the measurements from fibre optics and traditional accelerometers. The results from both types of equipment showed strong similarity, suggesting that fibre optics could be a viable method for soil identification. However, using fibre optics for traditional vibration measurements, where precise determination of peak values is critical, will require further research.