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Crane at the Mt Eden construction site
Mt Eden tunnel portal
Tunnel work in Mercury Lane
Mt Eden portal construction site February 2021
Mt Eden construction site February 2021
Mercury Lane shaft
Mt Eden construction site portal February 2021
D Walls construction Beresford Square
D walls construction Beresford Square Feb 2021
D walls construction Beresford Square Feb 2021
This drill rig at Mercury Lane is installing grout tubes.
This is achieved by drilling into the underlying rock to intercept open cracks, joints, fissures or cavities, then pumping under pressure balanced and stabilized grout mix using a combination of cement, water, and additives. This will stabilise the tunnel and reduce the risk of collapse.
In March last year, we began sheet piling for the temporary access shaft at Mercury Lane and in July began construction of the noise enclosure which allows tunneling work to be carried out 24/7. Tunneling began in November in Mercury Lane and the road headers are making their way north.
In March last year, we began sheet piling for the temporary access shaft in Mercury Lane and in July began construction of the noise enclosure which allows tunneling work to be carried out 24/7. Tunneling began in November in Mercury Lane and the road headers are making their way north
At Mt Eden ahead of the big Tunnel Boring Machine (TBM) starting operation.
There’s been considerable progress in excavating 44 metres of the top heading of the tunnel cavern.
The construction of the Karangahape station’s floors and excavation of the rock beneath is to start. This stage of works, (illustrated) will take about two years and includes the pouring of the station ‘lid’ (ground floor slab), crane movements on the slab and multiple truck movements to deliver concrete and remove soil.
The noise enclosure at Mercury Lane.
Work on the ground floor of the Chief Post Office
Concrete trucks lined up, all waiting patiently for their turn. These trucks were involved in a recent concrete pour of a section of the underground Aotea station's roof. Jan 2021
Aotea info hub Te Pūkaki
The tunnel boring machine (TBM) shield- the 7.15 metre revolving cutter head at the front of the TBM - has been successfully positioned in front of the tunnel portal. (March 2021)
The tunnel boring machine (TBM) shield- the 7.15 metre revolving cutter head at the front of the TBM - has been successfully positioned in front of the Mt Eden tunnel portal.
