On October 15, a major milestone was reached on Europe and the World’s longest rail tunnel. The Gotthard Base tunnel under the Swiss Alps will form a high speed rail link between northern and southern […]
A bridge near Brewster, Minnesota collapsed under the weight of a 40-ton asphalt milling machine that had nearly completed the milling operation. The bridge carries Nobles County 1 over Elk Creek. The operator of the […]
As 33 trapped miners waited more than 2,000-ft underground for their rescue, a whole team of Chilean government officials, mining engineers, equipment manufacturers and of course drillers came together get the job done. Jeff Hart, a driller from Denver, Colorado was one of the stars of the day. Hart was in Afghanistan drilling deep water wells when he got the call and hopped on a plane. He works for Kansas-based Layne Christensen, and along with 3 other Layne employees, he manned the Schramm T130 drill rig that was part of “Plan B” that eventually became the shaft from which the trapped miners were rescued.
On the drilling platform overseeing the drilling was James Stefanic of Layne, and crew members Matt Staffel, Doug Reeves and Jorge Herrera. The rig and I presume some of the support equipment was owned by Layne’s Latin America affiliate, Geotec Boyles Bros, SA. The drill bits were from Center Rock, Inc. of Berlin, Pennsylvania. The Center Rock CEO, Brandon Fisher, was on site throughout the operation as well.
Read on for more info, photos, video and links on the drilling, drillers and geology of the Chile Mine rescue.
Mohr Circle Application – Source: Geoengineer Group on Yahoo Groups Group member Mehdi has written an application for drawing Mohr Circles and extracting the intercept with ordinate and slope of the tangent line with VB […]
GPS manufacturer Garmin has announced a small, $23 device that act as a beacon, broadcasting a wireless signal to compatible devices that they are near a Geocache or give them clues along the way. It […]
The Globe Drill GT3000 mobile drill rig takes about two semis to haul, but can drill holes as deep as some oil and gas rigs that take 40 or 50 semis to move. It has […]
MSEW Author: K-Stiffness Model Method Invalid, Potentially Unsafe – Source: Geosynthetics Magazine PDCA – The importance of piledriving simulation – Source: Down to Earth Blog via Geoengineer.org Mine tailings landslide in Hungary and a dam […]
Price is $20/year for 12 issues compared to $36/year for the print edition. No pricing yet for a combined print and digital subscription. [Source: EarthMagazine.org. Image: EarthMagazine.org]
At the INTERGEO 2010 conference in Cologne, Germany, Trimble announced its 4D Control Software for monitoring of movements on a variety of structures and geotechnical features. It even includes the ability to connect to various […]
This 57-km tunnel under the Swiss Alps has nearly broken through after 11-years of work. This tunnel will create a ‘flat’ rail path through the Alps and become the world’s longest rail tunnel. [Source: World […]
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