Rugged fibre optic sensors that will help detect landslides and accurately monitor soil movement under railway and bridge embankments are being developed by UK researchers. A multi-disciplinary research team is hoping to produce highly sensitive arrays of sensors that will be able to detect the pressure of water in granular soil, but are tough enough to survive being buried in harsh environments. As well as monitoring soil movement and pressure the sensors will provide information about its chemical makeup and stability.
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