Results 1 - 3 of 3

• Field Test with Strain-Gauged Friction Bolts at the Gold Hunter Mine, Mullan, Idaho, USA
  8/1/2003 - Conference papers
  To measure the loading behavior of friction bolts, NIOSH researchers installed strain gauges on the interior of friction bolts and developed a miniature data acquisition system (MIDAS) that fits inside the hollow portion of the friction bolt.
• 60 Years of Rockbursting in the Coeur D'Alene District of Northern Idaho, USA: Lessons Learned and Remaining Issues
  2/1/2002 - Conference papers
  Sixty years of rockbursting in the Coeur d'Alene district has taught painful lessons and led to practical advances in controlling rockburst hazards. This paper summarizes those lessons, concentrating on practical measures to reduce hazards.
• Investigation of a Rock-Burst Site, Sunshine Mine, Kellogg, Idaho
  1/1/1997 - Conference papers
  Rock masses in deep-level mines are subject to high stresses, which can result in unexpected failure of rock into mined-out openings. Personnel from two research centers of the former U.S. Bureau of Mines, Spokane and Twin Cities, investigated a rock b...