Two workers fell eight metres from a temporary structure that collapsed while they were upon it, Cheltenham Magistrates Court heard.
Spencer Gosney from Yeovil, and Matthew Brewer from Nottingham, had been sub-contracted to build a concrete core as part of a new factory building at GlaxoSmithKline's premises in Coleford, Forest of Dean. Chalcroft Ltd was the principal contractor on site.
On 12 August 2009, the two men were building the core using a large piece of climbing form work, a type of frame used to set the concrete in place. As the tower got higher, the form work was lifted up and fixed in place enabling the men to work at the top to set more concrete.
However, one of the anchor points holding the section of form work where the men were standing came out of alignment before the concrete was poured in. The men used a bolt not suited for this use in its place, but fixed it at an acute angle. The bolt was unable to withstand the weight of the concrete and broke, tipping the platform upon which the men were standing, sending them falling to the ground.
Mr Gosney suffered a laceration to his head and severe bruising to his internal organs and leg. Mr Brewer fractured his hip and pelvis. Mr Brewer's injuries were so severe that he has still not returned to work.
Chalcroft Ltd, of Keytec 7 Business Park, Pershore, Worcestershire, admitted breaching Construction (Design and Management) Regulations 2007 Reg 22 (1)(a) and was fined £14,000 with £23,236.28 in costs.