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Blasting for Abandoned Mine Land Reclamation (Closure of Individual Subsidence Features and Erratic, Undocumented Underground Coal Mine Workings).


PB91169847

Publication Date 1991
Personal Author Workman, J. L.; Thompson, J.
Page Count 420
Abstract The study has examined the feasibility of blasting for mitigating various abandoned mine land features on AML sites. The investigation included extensive field trial blasts at sites in North Dakota and Montana. A blasting technique was used that was based on spherical cratering concepts. At the Beulah, North Dakota site thirteen individual vertical openings (sinkholes) were blasted with the intent to fill the voids. The blasts were designed to displace material laterally into the void. Good success was had in filling the sinkholes. At the White site in Montana erratic underground rooms with no available documentation were collapsed. An adit leading into the mine was also blasted. Both individual room blasting and area pattern blasting were studied. A total of eight blasts were fired on the one acre area. Exploration requirements and costs were found to be extensive.
Keywords
  • Cratering
  • Blasting
  • Underground mines
  • Coal mines
  • Land reclamation
  • Field tests
  • Subsidence
  • Vibration
  • Feasibility
  • Voids
  • Design
  • Sites
  • Cost effectiveness
  • Seismographs
  • Montana
  • Abandoned mines
  • Beulah(North Dakota)
Source Agency
  • Bureau of Mines
NTIS Subject Category
  • 48A - Mineral Industries
  • 48E - Soil Sciences
  • 79E - Detonations, Explosion Effects, & Ballistics
Corporate Authors Calder and Workman, Inc., Washburn, ND.; Bureau of Mines, Washington, DC.
Supplemental Notes Sponsored by Bureau of Mines, Washington, DC.
Document Type Technical Report
Title Note Final rept.
NTIS Issue Number 199112
Contract Number
  • J0289004
Blasting for Abandoned Mine Land Reclamation (Closure of Individual Subsidence Features and Erratic, Undocumented Underground Coal Mine Workings).
Blasting for Abandoned Mine Land Reclamation (Closure of Individual Subsidence Features and Erratic, Undocumented Underground Coal Mine Workings).
PB91169847

  • Cratering
  • Blasting
  • Underground mines
  • Coal mines
  • Land reclamation
  • Field tests
  • Subsidence
  • Vibration
  • Feasibility
  • Voids
  • Design
  • Sites
  • Cost effectiveness
  • Seismographs
  • Montana
  • Abandoned mines
  • Beulah(North Dakota)
  • Bureau of Mines
  • 48A - Mineral Industries
  • 48E - Soil Sciences
  • 79E - Detonations, Explosion Effects, & Ballistics
  • J0289004
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