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First developed in the 1970s, fibre optic technology is used to transmit information and signals from one place to another and has evolved enabling sensors to measure various parameters including temperature, strain, pressure, and displacement.
The sensors are light weight and have high sensitivity and immunity against electromagnetic fields. These qualities make them suitable for civil and geotechnical monitoring, i.e assessing rock stability, an important component in the design and construction phase of underground excavation.
The construction industry is starting to leverage new techniques including Distributed Fibre Optic sensors which enables continuous, real-time measurements along the entire length of a fibre optic cable. This technology facilitates infrastructure asset management for existing and problematic sites, monitoring deformations and the effects of climate change or natural phenomena such as landslides or earthquakes.
Nevertheless, the approach is relatively new to many construction professionals. This webinar will demonstrate the practical applications of various fibre optic techniques in different site investigation scenarios using case study examples.
• Learn about innovative approaches, the pros and cons of different fibre optic sensors for
geotechnical and other types of site investigation
• Discover how the construction sector is benefiting from new technological developments
including Distributed Fibre Optic sensors
• Gain insight into the application of fibre optics with practical case studies from different
• Share good practice and experience
• Earn valuable CPD
Who should attend
• Fibre optic specialists
• Geotechnical specialists
Wednesday 13 October 2021
10:30 – 12:15
10:30 Welcome and introduction
Joanne Kwan, Project Manager, CIRIA
10:40 Client perspective: Earthworks monitoring with fibre optics
• Considerations when using different types of fibre optic sensors to measure
different geotechnical properties
• Expectations and the role of specialist advisors
Neil Esslemont, Senior Engineer (Buildings & Civils), Network Rail
11:00 Distributed fibre optic sensing for monitoring civil and geotechnical infrastructure
• Overview of fibre optic sensing
• Monitoring different types of infrastructure
Nicky de Battista, Research Associate, Centre for Smart Infrastructure and
Construction, University of Cambridge and Director, Epsimon
11:20 Distributed Rayleigh Sensing in site investigation
• Measuring temperature, strain, and vibration
• Assessing site ground conditions and structural health
Paul Clarkson, Algorithm Developer, Optasense
11:40 Interactive discussion and Q&A
12:10 Closing remarks
CIRIA members Free
Non-members £35 + VAT
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