wsdot This time-lapse video captures the difficult and challenging work to disassemble the world’s largest-diameter tunneling machine. For four months, crews cut, hoisted and trucked away 8,000 tons of the machine’s equipment and steel, removing it from inside the tunnel it had built. Up next – finishing the double-deck highway inside and installing all the …
Bye-Bye to Bertha, the world’s largest tunneling machine Read More »
Compact shaft sinking technology for all ground conditions. Herrenknecht
MRTMalaysia Two types of TBMs are being used to excavate the tunnel for the MRT Sungai Buloh-Kajang Line. In the portion of the alignment going through the Kenny Hill Formation, Earth Pressure Balance (EPB) TBMs will be used while the world’s first Variable Density TBMs, which was specially developed jointly by world renowned TBM manufacturer …
The world’s first Variable Density Tunnel Boring Machine Read More »
Victoria Anderson Animation about the HDD technology (Horizontal Directional Drilling), a system for the installation of pipelines underneath rivers, roads, railway tracks, buildings and other obstacles.
PrimeDrilling The video explains the HDD technology (Horizontal Directional Drilling), a system for the installation of pipelines underneath rivers, roads, railway tracks, buildings and other obstacles.
microtunel.com – Marc Martí‘s website. Video by Abel López Suarez. http://wordpress.microtunel.com/wp-content/uploads/2015/12/Inspeccion-de-cortadores-en-Tuneladora-Hidroescudo.mp4
wsdot View from a drone inside the SR 99 tunnel, executed by Bertha. Bertha, also known as Big Bertha, is 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.[1] It was made by Hitachi Zosen Sakai Works in Osaka, …
View from a drone inside a tunnel executed by Bertha Read More »
In this type of drilling, the pipe is used as a final element of the tunnel and at the same time during the advance must be able to transmit the pushing force to the TBM (Hydroshield, EPB or open shield). The advance is made through the push made by a set of main jacking cylinders …
Pipe jacking with hydroshield – Azerbaijan project Read More »
The election of this type of perforation is influenced in great way of the type of ground and surface area of influence. Is absolutely necessary not to have groundwater levels and the ground has to be cohesive. This boring technic is inadvisable in free ground without cohesion, hard ground or in water presence. The execution …
“Video courtesy of CDM/HMM Joint Venture – For engineering enthusiasts and anyone who’s interested in the mechanics of siphon construction, this animation shows exactly how the 110-ton, 300-foot-long tunnel boring machine will drill a distance of nearly two miles, 100 feet beneath the New York Harbor seabed…”.