The site comprised an existing city centre building, which was undergoing significant refurbishment to accommodate a new private school. During preliminary works, intrusive investigation was undertaken within the basement to investigate the foundation construction and inform design.
When the concrete floor slab was breached, an audible hissing noise and an unexpected release of gas was identified. This unexpected release of gas was recognised as presenting a potential hazard to the drilling operatives, the building and other occupants, or visitors. As such, the pilot hole was temporarily plugged, and intrusive works were suspended until further investigation was completed and a safe system of work was in place.
GGS supported the implementation of a safe system of work by:
Outcome
GGS presence on site ensured that a safe system of work was in place to enable the intrusive works to continue and for the refurbishment to remain on schedule. A factual letter report was provided to The Client on completion of the works to remain on file and provide evidence that a safe system of work was implemented.