A meter a day. In Prague, metro line D construction begins in new location
The tunnelling is carried out at a rate of approximately one meter per day.
In Prague, Subterra started construction of the new metro line D last week from another location. Here, the tunneling picks up from a 26-meter-deep shaft from previous geological survey works using the New Austrian Tunneling Method (NATM). The resulting access tunnel between the Pankrac and Olbrachtova stations will be almost 218 meters long. It should be finished by the end of this year.
At the end of the tunnel, the Pankrac D station will be constructed. This station will also be tunneled from the opposite direction, i.e. from the direction of the future Olbrachtova station. A line tunnel has been under construction since the end of April in the direction of both Olbrachtova and Pankrac D stations.
The access tunnel will be used for the transport of rubble during Pankrac D station tunneling and for the transport of construction materials and all equipment. After completion, it will be part of the ventilation system and the shaft itself will serve as a ventilation object for the Pankrac D station.
Edited and translated by Lucie Trávníčková.