Permafrost outreach 2009

The University of Alaska EPSCoR program, NASA IPY and NSF IPY, Thermal State of Permafrost programs are conducting an outreach effort in conjunction with it's research focus on permafrost and infrastructure. The outreach effort has been termed the "Permafrost Health" program and consists of installing permafrost temperature monitoring systems!

Saturday, February 17, 2007

 

core bit VS. auger bit


I introduced auger bit last two blog. Auger bit is faster and easier to drill (e.g. making hole for temperature monitoring). However, this is difficult for gravel layer. Core bit (picture) is, in general, for core sampling but also better for gravel layer drilling. We have several different shape of the core bit using carbide or diamond.





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