Numerous state, federal, and local government approvals are necessary to develop and operate large hardrock mines in Alaska. The State of Alaska has developed the Large Mine Permitting Team (LMPT) to coordinate the permitting process for state agencies, and when appropriate, integrate with parallel efforts by federal and local agencies.
Although employment for hundreds of occupations are covered in detail in the Occupational Outlook Handbook, this page presents summary data on additional occupations for which employment projections are prepared but detailed occupational information is not developed.
In consultation with the world's leading mining companies and regional mining authorities, the MineARC MineSAFE has been continuously re-engineered and refined to create a safe-refuge solution that is fully integrated with today's modern underground mining environment.
A world leader in mining equipment and rock excavation. Our constantly evolving offering for mining and rock excavation covers rock drilling, rock cutting, crushing and screening, loading and hauling, tunneling, quarrying and breaking and demolition.
Limestone, as used by the minerals industry, is any rock composed mostly of calcium carbonate (CaCO 3). Although limestone is common in many parts of the United States, it is critically absent from some. Limestone is used to produce Portland cement, as aggregate in concrete and asphalt, and in an ...
1999 Fatal Accidents Back to Top of Page (1) January 20, 1999 Fola Coal Company Surface Mine No. 3, Clay/Nicholas County. A surface haulage accident occurred at 3:30 PM. The victim, a rock truck driver, had backed his truck to the berm at the top edge of a valley fill and was in the process of dumpi
A. Abutment - In coal mining, (1) the weight of the rocks above a narrow roadway is transferred to the solid coal along the sides, which act as abutments of the arch of strata spanning the roadway; and (2) the weight of the rocks over a longwall face is transferred to the front abutment, that is, the solid coal ahead of the face and the back abutment, that is, the settled packs behind the face.
"After using Laser Technology's Face Profiler, I found it to be extremely useful for quickly determining the exact burden at any point along the depth of the face-holes, significantly reducing the risk of any dangerous fly rock incidents caused by insufficient burden.
Back — The roof or upper part in any underground mining cavity. Backfill — Mine waste or rock used to support the roof after coal removal. Barren — Said of rock or vein material containing no minerals of value, and of strata without coal, or containing coal in seams too thin to be workable.