Contractor JV, Comol Tunnelbouw was scheduled to start boring the second 1.6km long tube of Holland’s $200M Pannerdensche Canal Railway Tunnel at the end of August. Construction of the first tunnel was completed successfully following the TBM breakthrough in June this year.
The JV, comprising Vinci/CFE/TBI, is using a 9.8m diameter Herrenknecht Hydroshield, to bore the tunnels through the mainly sandy geology at depths of up to 25m.
More details in September’s issue of Tunnels & Tunnelling International
