HS2 launches Florence – first giant tunnelling machine
HS2 has launched its first enormous tunnel boring machines (TBMs). The machine, Florence, is the first of ten and will dig around 64 miles of the tunnel during the first phase of the high speed railway. Florence is 2,000 tonne and 170m-long and is the largest boring machine...
Infographic — What Are The 10 Longest Tunnels in the World?
Often overlooked, tunnels are modern day engineering marvels. While today the longest and most impressive tunnels are concentrated in parts of Europe and Asia (due to their mountainous topographies) there might be a revolution in boring technology that could lead to tunnels of unprecedented lengths all over the...