nickel ore and gold ore roadheader process

nickel ore and gold ore roadheader process

Bertha Seattle Tunnel Pictures Plans - Image Results

More Bertha Seattle Tunnel Pictures Plans images

Alaskan Way Viaduct - Follow Bertha

While Bertha was underground, this page tracked her progress beneath Seattle. With the machine dismantled and removed, we are now tracking tunnel progress on a new page. Find the new tunnel progress tracker here

Bertha (tunnel boring machine) - Wikipedia

Bertha was a 57-foot-diameter (17.4 m) tunnel boring machine built specifically for the Washington State Department of Transportation's (WSDOT) Alaskan Way Viaduct replacement tunnel project in Seattle.

New photos capture massive scale of Seattle tunnel ... - GeekWire

New photos capture massive scale of Seattle tunnel project as Bertha creeps along. ... Seattle airport plans to allow Uber and Lyft pickups as early as next week;

Seattle's tunnel machine Bertha breaks through nearly 4 years ...

Photos: Bertha's journey from start to finish Former Washington Governor Christine Gregoire, who was a driving force to replace the Alaskan Way Viaduct with a tunnel, said she always believed it ...

Alaskan Way Viaduct replacement tunnel - Wikipedia

The Alaskan Way Viaduct replacement tunnel, also known as the SR 99 Tunnel, is a bored road tunnel that is under construction in the city of Seattle in the U.S. state of Washington.

The Hank, The Bertha or Fast Eddie: Naming the new Seattle tunnel

Hooray! Bertha is done digging under downtown Seattle! We’re just a few years away from the grand opening of the new Seattle tunnel that will replace the beleaguered Alaskan Way Viaduct.

Bertha breaks through: World's largest boring machine ...

The normally sedate city of Seattle sounded more like the set of a science fiction epic today as the world's largest boring machine roared and screeched its way into the open air. The tunnel ...

Bertha breaks on through to the other side – and now faces ...

Contractor Seattle Tunnel Partners will determine which pieces of Bertha could be salvaged for use on other projects or recycled. RELATED: Here's a look back at Bertha's ups and downs

SR 99 Alaskan Way Viaduct Replacement Program - Flickr

The viaduct's central waterfront section is being replaced with a bored tunnel beneath downtown Seattle. The southern mile of the viaduct, near Seattle's port and stadiums, was replaced with a new roadway that has wider lanes and meets current earthquake standards.

Follow Bertha's breakthrough - The WSDOT Blog

Follow Bertha's breakthrough The contractor Seattle Tunnel Partners began mining around 8 a.m. this morning. The tunneling machine Bertha will mine through the five-foot-thick concrete wall of the disassembly pit, an effort that is expected to take several hours.

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About KAMY

KAMY series of Roadheaders offers the best cutting performance in a wide range of rock formations. Equipped with geometrically optimized transverse or longitudinal cutter heads, these flexible machines can be used to excavate subway tunnels, road tunnels, railway tunnels and water tunnels without using explosives.