After much detailed planning and preperation we have now started work on a customers site carrying out maintenance on a large carousel that is approx 20m in diameter and weighs 160 tonnes. The carousel has been in use for ten years and the suporting rails on which the carousels wheels run on, had started to suffer as it can accomadate several thousand tonnes when loaded up.
The empty carousel was jacked up using a hydraulic jacking system that uses a supporting timber matrix. Once raised by two metres, solid steel supports were inserted and the jacks removed. The two rings of rails have been lifted and the old supporting grout removed. The plan is to accurately level the old rails and then re-grout them with an epoxy grout prior to the reversal of the lifting process.