Major breakthrough as Farnworth Tunnel re-boring comes to an end
Major breakthrough as Farnworth Tunnel re-boring comes to an end
1 PagesMajor breakthrough as Farnworth Tunnel re-boring comes to an end Farnworth Tunnel reconstruction Northwest electrification works have hit a major milestone with Britain’s biggest active tunnel boring machine (TBM) complete with Gnat UK’s adapted Brokk 330, ‘Fillie’, the 9meter diameter TBM broke through Farnworth Tunnel on Sunday,25 October Nick Turnbull MD of GnatUK Ltd “We were proud to be of assistance to Murphy Tunnelling on such a prestigious and demanding project, we utilised one of our Brokk 330 machines and in order for us to work within the confines of the TBM we had to separate the undercarriage, the machines upper valve block and boom system were adapted to a modified ring gear on the TBM platform, the team worked 24/7 to assist in the removal of the original 1800 tunnel lining
