USA

Norris Cut Projekt:
Tunneling at Florida’s Coast

The launch shaft on Virginia Key with a diameter of only 12 m saved space. As a result, however, the HCS machine had to begin the drive in pipe jacking mode using a jacking frame adapter Quelle/credit: Herrenknecht
The launch shaft on Virginia Key with a diameter of only 12 m saved space. As a result, however, the HCS machine had to begin the drive in pipe jacking mode using a jacking frame adapter
Quelle/credit: Herrenknecht
In February 2016 the TBM reached the target shaft on Fisher Island around 1.6 km away in less than ten months. In late 2016 a new 60“ sewer line, installed in the segmentally lined protection tunnel, will replace the old, worn-out line and transport wastewater from Fisher Island to the treatment plant on Virginia Key Quelle/credit (2): Herrenknecht
In February 2016 the TBM reached the target shaft on Fisher Island around 1.6 km away in less than ten months. In late 2016 a new 60“ sewer line, installed in the segmentally lined protection tunnel, will replace the old, worn-out line and transport wastewater from Fisher Island to the treatment plant on Virginia Key
Quelle/credit (2): Herrenknecht

In February 2016 construction company Bessac completed work on the Norris Cut protection tunnel in extremely difficult geology in South Florida. Norris Cut is a shallow inlet between Fisher Island and Virginia Key, just south of the Main Channel to the Port of Miami.  In just ten months and using a customized machine designed especially for the mission, a “Herrenknecht Combined Shield” (HCS, diameter 3.13 m), 1613 m were tunnelled adhering to the highest safety standards. A new sewer line was installed in the finished tunnel – after half a century in use the old pipe was simply worn out.

The...

Find out more in

tunnel 07/2016

Find out more in

tunnel 07/2016

Ressort:  Nachrichten | News
subscription Content

Related articles:

Issue 02/2014 USA

Port of Miami Tunnel is set to be opened in May

As link to the Interstate 195 and 95 freeways the 1.2 km long Port of Miami Tunnel with two bores, each with two lanes, underpasses the channel for the world’s biggest cruise ship harbour on the...

more
Issue 07/2017 Germany

New Emscher Sewer Tunnel: VMT provided TBM Navigation and Work Safety Concept in BA 40

The construction of the 51 km long Abwasserkanal Emscher (AKE) sewer tunnel is the largest individual project to improve the River Emscher in the Ruhr, Germany and is technically and financially one...

more
Issue 04/2012

Kaiser Wilhelm Tunnel: Undertunnelling Uptown Cochem in EPB Mode

1 Stage reached in accomplishing the Kaiser Wilhelm Tunnel The 2-track Kaiser Wilhelm Tunnel, which opened back in 1879, is located on the Coblenz-Perl Moselle rail route between Ediger-Eller and...

more
Issue 03/2013 Interview

Safety – from Tunnel Mouth to Breakthrough

The data relating to the new stormwater section are impressive. The sewer system is designed as a main collector, which is being produced at depths of some 8 to 40 m under the surface by pipe...

more
Issue 02/2014

Safe from Fire and Smoke

Three significant factors diminish the bearing capacity of the structure and hamper stability in the event of a tunnel fire: Explosion-like spalling caused by immense heat development and the...

more