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2014 ITA Guidelines for the Provision of Refuge Chambers in Tunnels Under Construction

2014 ITA Guidelines
 In recent years the provision of refuge chambers in shafts or tunnels under construction has become widespread in the tunnelling industry.
There is no single consistent set of requirements for such chambers.

This document draws on the requirements for chambers, from different countries and jurisdictions, to produce what ITA WG5 hopes is an internationally applicable single guidance document.

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