SOUTHERN PRE-CUT "ENEBAKKVEIEN"
the end of 2019 it was discovered that the portal the client had
planned in Enebakkveien did not have enough rock overburden to be safely
excavated. New ground investigations were carried out and the the
client chose to redesign the water pipe in the portal area. The design
team from Marti, is currently finishing the new design for the pre-cut
which will be executed at the end of summer 2020.
NORTHERN PRE-CUT "SKULLERUD"
main tunnel will break through into an existing facility. The works on
the pre-cut are expected to take place directly after the southern
pre-cut is completed. This will include very careful blasting since we
are working in close proximity to the existing water treatment plant.