Application of fibre optic sensors in site investigation

This webinar will give an overview of the advances and innovative approaches in the use of fibre optics for geotechnical and other types of site investigation.

Online registration has now closed for this event.  If you would like to register to attend, please complete and return the booking form to James Nguyen.

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.

Why Attend
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 geotechnical scenarios Share good practice and experience Earn valuable CPD

Who should attend

Contractors Consultants Fibre optic specialists Geotechnical specialists When 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

Fees CIRIA members Free Non-members £35 + VAT
Please sign in or create an account to register online for this event.
If you are experiencing issues registering online, please complete and return the booking form to James Nguyen.
Alternatively please contact us on 020 7549 3300 or email

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Further information
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13/10/2021 - 13/10/2021

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