By rosebell
The vertical excavation has been completed for two more stations for Montréal’s Blue Line Project.
The 31m-deep excavation for Mary-Two-Axe-Earley Station involved removing around 88,000m³ of earth and rock to create the tunnel entrance and emergency exit.
At Cesira-Parisotto Station more than 70,000m3of spoil were excavated to reach a depth of 31m.
The work at Mary-Two-Axe-Earley (Viau) and Cesira-Parisotto (Lacordaire) stations follows the completion of vertical excavation at Vertières and Madeleine-Parent stations in autumn last year.
Excavation of Anjou Station, the fifth station on the Blue Line extension, is expected to be achieved by the end of this year.
At Mary-Two-Axe-Earley Station a slipway is being constructed for the arrival of TBM Lisette. This will enable the 9.7m-diameter Herrenknecht machine to slide through the sections that have already been excavated.
The TBM was launched from Vertières Station in May to dig 4.6km of the 6km tunnel extending the Blue Line.
The Blue Line extension will add five new stations east of Saint-Michel Station, bringing the Blue Line into Anjou.
