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!Tuesday, February 27, 2007
Jackhammer with rotation
Jackhammer is definitely powerful tool to break rock, ice, and permafrost! The capacity for the depth will be weak point of this tool. Usually, jackhammer dig only 5-10 feet or less. However, this gas powered Swedish rotation jackhammer (Pionjar) could be drill 20 feet deep to the bedrock even granite. I soon try this to the rocky permafrost last year. Unfortunately, it did not work! This strong percussion power was absorbed by the wet silty material and melt water generated by the impact. So this jackhammer works wonderful for dry bedrock but not for frozen silty gravel! We still look for drill system for frozen gravel!
posted by uaf permafrost # 8:57 PM 
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