Work has restarted on the A86 Paris ring motorway tunnel following the devastating tunnel fire earlier this year. Over two months’ work was needed for cleaning and repair. The 11.24m diameter Herrenknecht TBM, boring the first 4.5km drive of the 10km tunnel, was not directly affected by the fire, but had to be cleaned and partially renovated because of heavy smoke particle deposits across its surfaces.
More details in August’s T&TI.
