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A 4500 tonne reinforced concrete bridge

SLOUGH SLIDE: A 4500 tonne reinforced concrete bridge was slid 40m into position beneath the Windsor to Slough railway line at Chalvey near Slough last weekend. Osborne Rail used the French Autoripage system for which it holds the UK licence. The system involves dragging the structure into position over a reinforced concrete raft and through a pressurised film of Bentonite. Osborne claims the technique is faster and more accurate than existing methods. Work was carried out during a ...

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