Macalloy bars influence the successful installation of box-jacked undepass in Tipton - 24/04/2009 — Tiranti/Pendini/Post-Tensionamento
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Macalloy bars influence the successful installation of box-jacked undepass in Tipton - 24/04/2009

creato da Paul Dale - Ultima modifica 24/04/2009 02:58

Fri, 24 April 2009

The removal of the last level crossing on the west coast main line is now well underway after the successful installation of a box-jacked undepass in Tipton.

The concrete box was driven by three jacks, each connected top and bottom to its rear end. Prestressed Macalloy bars held the jacks in place at the top, each carrying 91t of load.