Search Results: 'Putzmeister'

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  Date 2010
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Keeping the timetable on track
06 December, 2010
Following tunnel breakthrough civils work continues on inner linings and walkways, which complete only in 2014. But focus is already switching to the fit-out of the tunnels

Replacing Guanjiao
11 November, 2010
The new Guanjiao rail tunnel is a major twin tube project being built at high altitude in West China. It replaces the shorter single bore higher up the mountain and so increases capacity on the link to Tibet. Report by Patrick Reynolds

Meeting shotcrete specifications
23 March, 2010
In the long history of shotcrete, or sprayed concrete, linings underground, never has so much been expected of them. In the transition in scope from hard rock primary support to soft ground permanent support, shotcrete is now expected to create structures under even more demanding conditions, but still at comparatively low cost. Here technical editor Maurice Jones reviews the state of some developments designed to meet such demands