Monitoring services for Bond Street Station Upgrade | United Kingdom

Movements, noise & vibration

Bond Street Station is undergoing upgrade works to improve the connection to the Crossrail Station being built just south of the underground station.

The works to the station involve the demolition of an existing bank, secant piling, construction of new cross passages and escalator chambers below ground and new structures to replace the demolished structure.

The predicted zone of influence is centred around London’s West End, Stratford Place, but also encompassing grade 1 and 2 listed structures, London underground infrastructure as well as the services which lie underneath the road service.

Sixense was appointed to undertake the structural and geotechnical instrumentation and monitoring of the surrounding structures.

Alongside this, Sixense carried out monitoring within the station and surrounding areas to ensure sensitive equipment and passengers were not exposed to excessive noise and vibration, whilst the works were undergoing.

4D-Shape technology

Amongst an array of automated instruments shape arrays (SAA), so called 4D-Shape by Sixense, were used to monitor the central line, east and west bound, each string containing 51 sensors, and 25 metres in length. The mid level sewer was also monitored using SAA’s to determine longitudinal profile and convergence/divergence within the sewer.

As an integral part of the structural monitoring solution provided by Sixense on this project, data is automatically acquired and processed by a data logging solution on-site, then stored on a remote server and managed 24/7 using Sixense’s Geoscope software which allows real time monitorin