Static and Dynamic Loads in Ore and Waste Rock Passes in Underground Mines

Details

• Personal Author:
  Beus M ; Dreschler A ; Iverson, Stephen R. ; Scott V
• Description:
  This paper describes research to improve safety during transport of ore and waste in underground mines. Field tests are underway in mines in Idaho and Montana. Strains measured on structural support members in an ore pass provided information about total forces acting on the structure as material was dumped into it. Results show that measured static loads were considerably less than actual total weight of the material dumped and that dynamic loads were subject to many factors, such as effects of blasting to remove hang-ups. Comparisons of measurements and computer results using a particle flow code indicated that several difficulties remain before achieving realistic determinations and models of the dynamic effects of particle flow in ore passes and impact loads on the gates. Impact loads were overestimated in computer analyses as compared to loads measured in field tests. An alternative design approach based on softening the chute and control gate assembly is being proposed. [Description provided by NIOSH]
• Subjects:
  Accident Prevention Accidents Accidents, Occupational Ergonomics Mining Occupational Health Safety Safety Management Software Waste Management
• Keywords:
  Accident-potential Accident-prevention Analytical-methods Analytical-models Analytical-processes Computer-models Ground-control Ground-stability Injury-prevention Mine-shafts Mining-industry Models Rock-bursts Safety-measures Safety-research Statistical-analysis Structural-analysis Waste-disposal-systems

  More +
• Series:
  Mining Publications
• ISBN:
  9789058090522
• Publisher:
  A. A. Balkema Publishers
• Document Type:
  Text
• Genre:
  Proceedings
• Place as Subject:
  Colorado ; Idaho ; Minnesota ; OSHA Region 10 ; OSHA Region 5 ; OSHA Region 8 ; Washington
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Division:
  SRL - Spokane Research Laboratory
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Pages in Document:
  489-495
• NIOSHTIC Number:
  nn:20028121
• Citation:
  Rock Mechanics for Industry - Proceedings of the 37th U.S. Rock Mechanics Symposium, Vail, Colorado, June 6-9, 1999. Rotterdam, Netherlands: A. A. Balkema Publishers, 1999 Jun; :489-495
• Editor(s):
  Amadei B; Kranz RL; Scott GA; Smeallie PH
• Federal Fiscal Year:
  1999
• Peer Reviewed:
  False
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:c1d123b6400d63d3f2fc517aed14cb7d4614f8923fc093fa68ccf5290cdcdb729db3466b80e4439ea63f75773b5c3b2973f13f701a8926ce59054f61df26f8ff
• Download URL:
  https://stacks.cdc.gov/view/cdc/221087/cdc_221087_DS1.pdf
• File Type:
  [PDF - 902.23 KB ]