Mining team mark the completion of the tunnel drive from TBM Caroline

HS2's TBM Caroline, is the second machine to reach the Green Park Way vent shaft in Ealing. The 2,050-tonne TBM broke through into an underground reception can filled with foam concrete, and installed the 4,217th concrete tunnel ring to complete the 5-mile stretch of tunnel. In image - Back of the TBM and the tunnelling team who been working to complete the 5mile stretch of tunnel.
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Mining team mark the completion of the tunnel drive from TBM Caroline: HS2's TBM Caroline, is the second machine to reach the Green Park Way vent shaft in Ealing. The 2,050-tonne TBM broke through into an underground reception can filled with foam concrete, and installed the 4,217th concrete tunnel ring to complete the 5-mile stretch of tunnel. In image - Back of the TBM and the tunnelling team who been working to complete the 5mile stretch of tunnel.