squeezing the earth in at the shield's face. Tunnel workers gather the muck and dirt as it pours in. They toss the dirt on conveyor belts, which carry the excess soil out of the tunnel.

You've got it! The first underwater tunnel was built with a tunnel shield. You could build a mile-long tunnel here in a couple of months with this reliable method. Learn more Tunnel Score ...

On March 26th, 12.68m diameter TBM ‘Strong Foundation’ developed by China Railway Construction Heavy Industry Corporation ...

Brunel figured that he could build a tunnelling device on this basis. Brunel’s tunnelling shield consisted of a grid of iron frames that could be pressed against the tunnel face. Poling boards ...

China's "JiangHai" shield tunnelling machine has officially started to shield tunnelling operations in the Haitai Yangtze River Tunnel. 🥳🥳What a stunning scene!😍😍 ...