Gas protection for Morrisons store
PAGeotechninacal is installing gas protection at a key site for the Morrisons supermarket group. The site, at Whitefield near Manchester, consists of a main Store and also a restaurant building - Café Roma.
Both buildings require gas protection but as the requirenments differ PAGeotechnical proposed a solution that encompassed two different systems.
Gas monitoring showed elevated levels of carbon dioxide, giving it a classification of ‘Characteristic Situation 3’ according to CIRIA 659 guidance. PAGeotechnical therefore proposed Low Energy Clean Air Blanket as a ’best value’ solution for the main store which has a floor area of 7000m². With a more modest footprint of less than 300m², the Café Roma building required a simpler, passive, solution using PAGeotechnical Standard Gas Membrane and PAG 25 geocomposite void former.
PAGeotechnical worked with engineers BSCP in Leeds and contractor Kier North West to gain approval for the proposals and installation began in September 2007. The Café Roma installation was completed in September 07 and the first stage of the main store installation is currently under way. Commissioning of the system and completion of the store is expected July 08.
