Tunnel Business Online had a neat article in the April 2012 issue discussing the progress on the various New York MTA tunneling projects. They suggest that this may someday be considered the ‘Golden Age of […]
GeoPrac Sponsor Nicholson Construction was recently awarded the contract for geotechnical construcion on the San Francisco Central Subway Project along with join venture partner Condon Johnson. Nicholson’s scope will include diaphragm walls at the tunnel […]
The August 2011 issue of Tunnel Boring Magazine contains a profile on Brierley Associates, an engineering firm specializing in tunnel design based in the Denver, Colorado area. The article provides some nice insight into the […]
Drill and Blast and Tunnel Boring Machine are two common types of tunnel construction methods. But roadheaders have been around for many years, getting their start in the coal mining industry. So where do they […]
On April 26, a sinkhole opened up in a busy Beijing street in China’s capital city, swallowing up a truck. According to news reports, the driver and passenger jumped out of the vehicle before it […]
A TBM is stuck on a 2.85m diameter stormwater tunnel in Lancashire, UK. The tunnel is planned to be 3.5-km long, but has been stalled since November when the silt intrusion stopped the tunnel boring […]
The notorious landslide-prone stretch of California Highway 1 at Devil’s slide has only about one more year until traffic bypasses it completely thanks to the twin bore tunnels that have just completed excavation. They still […]
This is a pretty nice little 3-minute news segment on the Caldecott Tunnel 4th Bore Project in the California Bay Area. Progress is slow, at only about 10-15 feet of progress per day, but work […]
From CSM: The Portsmouth Force Main Segment 1 project will be honored at the annual Colorado School of Mines Microtunneling banquet on Thursday, Feb. 10. The recently completed project for the City of Portland serves […]
Specialty geotechnical drilling contractor Holocene Drilling of Edgewood, WA recently completed work on an interesting project for Sound Transit’s U-220 TBM Tunnel Project at the University of Washington Campus in Seattle. Their scope included drilling […]
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