Results 31 - 37 of 37

• A Correlation Between Seismic Tomography, Seismic Events and Support Pressure
  7/1/2001 - Conference papers
  To study bump mechanisms, conditions in the vicinity of a deep longwall mining face in bump-prone strata were monitored using three discrete systems in an effort to increase understanding of mining-induced stress redistribution and bump potential.
• Differential Wall Rock Movements Associated with Rock Bursts, Lucky Friday Mine, Coeur d'Alene Mining District, Idaho, USA
  6/1/1999 - Conference papers
  Various methods of monitoring slip movements on bedding planes, as well as examination of rock burst damage in stopes, suggests that rock bursts in the Lucky Friday Miner are closely associated with these movements.
• Rock Bursting and Seismicity During Ramp Development, Lucky Friday Mine, Mullan, Idaho
  8/1/1998 - Conference papers
  A comprehensive survey of mine seismicity a rock bursting during development of two sublevels at the Lucky Friday Mine, Mullan, ID, was conducted to better define rock failure mechanisms and sources of ground control hazards.
• Technology News 466 - Use of Seismic Tomography to Identify Geologic Hazards in Underground Mines
  11/1/1997 - Technology News
  The use of seismic tomography to identify geologic hazards in underground mines is discussed.
• Temporal Imaging of Mine-Induced Stress Change Using Seismic Tomography
  1/1/1997 - Peer reviewed journal articles
  In an effort aimed at monitoring mining-induced stress changes that may influence ground failure, the U.S. Bureau of Mines conducted a series of active 3-D seismic tomographic surveys at the Homestake (Lead, South Dakota) and Lucky Friday (Mullen, Idaho...
• 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...
• Seismic Detection of Trapped Miners Using In-Mine Geophones
  1/1/1976 - Reports of Investigations
  A seismic system which utilizes in-mine geophones to detect trapped miners has been developed. Tests at the Bureau of Mines safety research mine at Bruceton, Pennsylvania, and at two operating mines indicate such a system has a maximum detection range i...