The International Information Center for Geotechnical Engineers

A leak in a cross passage between twin-bored tunnels has led to a ground collapse in Perth's Forrestfield Airport railway, Australia.

The new crossrail, named after Queen Elizabeth, which features a marathon of brand new tunnels beneath the streets of London will open by the end of 2018.

Cutting Edge 2016 (November 6-9, 2016 — Los Angeles, CA) is the must attend tunneling conference of the year and Nicholson Construction is a part of this conference! 

 

Published in News on Events
Friday, 18 December 2015 03:55

Alaskan Way Viaduct Replacement to Resume

The Alaskan Way Viaduct replacement is a transportation megaproject in the City of Seattle, Washington.  The project consists of replacing an overcrowded and unsightly elevated highway along Seattle's waterfront with an underground tunnel.  The 57-foot diameter tunneling machine, termed Bertha, is scheduled to resume tunneling operations on December 23, 2015, after approximately two years of repair operations. 

The Indian capital can be now considered, on a global scale, as one the cities where the largest tunneling project has ever been undertaken. According to the Delhi Metro officials this is not an understatement considering the 19 Tunnel Boring Machines (TBM) that are simultaneously working underneath the city. Phase III of the metro expansion is expected to complete by the end of the year. 

Friday, 20 February 2015 12:16

Seattle: TBM Bertha starts moving again!

TBM Bertha, used for opening the tunnel in the Alaskan Way Viaduct Replacement Project is on the move again, after major overheating problems that caused the machine to remain still for more than a year. The machine is expected to reach an access pit so that crews can perform necessary repairs. 

Alice, the Tunnel Boring Machine that has been digging underneath Auckland's western suburbs for 10 months has finally broken into daylight! This is New Zealand's longest road tunnel that will be connecting Auckland's Southwestern and Northwestern motorways, as part of the Waterview Connection Project. Watch the video below, which captures the moment of Alice's appearance.

Tunnel-boring machines deployed at tunneling projects across the U.S. are using Twitter to share observations in real-time with anyone interested. And wow! People are interested! They want to hear and see what is going on deep underground and how that may affect them.

Published in Other News