But the drilling takes place around-the-clock ... This part of the tunnel is already dug. Drops of water and brown gunk fall from the ceiling, and a thick liquid sits on the bottom of the curved ...

New video shows water gushing into the Queens-Midtown Tunnel earlier in the week after ... New Jersey-based drilling specialist Warren George, told investigators that their barge had drifted ...

QUEENS, N.Y. (PIX11) — A drilling contractor performing “investigative work” pierced a hole through the Queens-Midtown Tunnel Wednesday, causing a leak that forced officials to close the ...

Following the recent media coverage of damage to the Gautrain tunnel as a result of the drilling of a borehole, the Borehole ...

There has to be a proper investigation by the authorities on the reasons for the Srisailam tunnel collapse and action taken, if evidence emerges of tardy pre-tunnelling analysis ...

"Achieving high quality, nonexplosive tunnel construction ... unpredictability, water ingress, high costs, waste generation, and safety concerns. The Element Six and Master Drilling partnership ...

The tunnel requires ... until we conduct a drilling survey into the bedrock,” said a TEPCO official. Another official in charge of handling the problem of treated water said the utility will ...

"The increasing water flow inside the tunnel, silt accumulation ... experts are assessing the feasibility of drilling from the top and sides of the tunnel, ensuring all necessary safety ...

Argentina and Chile signed on Tuesday in Santiago the creation of a bi-national entity responsible for the Las Leñas Pass tunnel project (Ebileñas) to be drilled in the Andes connecting the two ...

The challenging conditions inside the tunnel, including slush and water, complicated the efforts ... are ready to carry out the survey again. Drilling was also carried out at locations where ...

"Achieving high quality, nonexplosive tunnel construction with various ... such as geological unpredictability, water ingress, high costs, waste generation, and safety concerns. The Element Six and ...