A technology brief.
https://www.herrenknecht.com/en/products/productdetail/double-shield-tbm/
Continuous tunnelling at maximum speed: the Double Shield TBM combines the functional principles of Gripper TBM and Single Shield TBM.
Good read. Thank you.
https://www.herrenknecht.com/en/products/productdetail/double-shield-tbm/
Double Shield TBM - Herrenknecht AG
www.herrenknecht.comContinuous tunnelling at maximum speed: the Double Shield TBM combines the functional principles of Gripper TBM and Single Shield TBM.