TONE Scaffolding was challenged by our client to design by calculation a free standing radial independent with multi working platforms around the circumference of a concrete circular storage tank and to carry out core drilling/concrete survey and repair works to the tank walls. The area in which the scaffolding was being erected falls into the DSEAR Regs and is located in a highly explosive and gaseous area, adjacent a Bio-Gas Membrane Gas Holder known as a “Golf Ball”.
Our operatives were Instructed to wear anti-static PPE and carry personal atmospheric testing monitors whilst in the work area.
The scaffolding was erected using bespoke brass hand tools, to prevent a possibility of sparks. Wind played a big factor, during the erecting of the scaffolding, as gases were being blown into the work area, resulting in our operatives having to move around the tank, away from wind direction to continue the erection of the scaffolding in a safe and gaseous free zone, meaning a disruption to the erection sequence.
Each level of scaffold, when completed had to be clad in Flame Retardant Debris Netting and the boarded platform had to be covered in “Welding Blankets” to catch any possible sparks during the concrete works.