Airflow Characteristic Curves for a Mature Block Cave Mine

Details

• Personal Author:
  Adhikar A ; Bhargava R ; Sridharan SJ ; Tukkaraja P ; Vytla VVS
• Description:
  Block/panel caving is an underground bulk mining method that utilizes gravitational force for mining massive, steeply dipping and deep-seated ore deposits at a lower operating cost. Since caving is a dynamic process, the design of an effective ventilation system is a challenging task and therefore, estimation of airflow resistance offered by the broken rock inside the cave is critical. The complex and dynamic nature of caving also makes it difficult to predict the airflow resistance by using traditional approaches. This study investigates the effect of changes in the bulk porosity of the broken rock on the cave airflow resistance using Computational Fluid Dynamics (CFD) approach. The results show an inverse relationship between the cave airflow resistance and the bulk cave porosity. [Description provided by NIOSH]
• Subjects:
  Mining Occupational Health Safety Ventilation
• Keywords:
  Airflow Air Pressure Author Keywords: Porosity Cave Airflow Resistance Flow Through Porous Media Mine Shafts Mining Industry Panel/Block Cave Mining Rock Mechanics Underground Mining Ventilation Systems

  More +
• ISBN:
  9781032036793
• Publisher:
  CRC Press
• Document Type:
  Text
• Funding:
  Contract
• Genre:
  Proceedings
• Place as Subject:
  California ; OSHA Region 8 ; OSHA Region 9 ; South Dakota
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Pages in Document:
  56-64
• NIOSHTIC Number:
  nn:20063571
• Citation:
  Mine Ventilation: Proceedings of the 18th North American Mine Ventilation Symposium (NAMVS 2021), June 12-17, 2021, Rapid City, South Dakota. Tukkaraja P ed. London: CRC Press, 2021 Jun; :56-64
• Editor(s):
  Tukkaraja P
• Federal Fiscal Year:
  2021
• Performing Organization:
  South Dakota School of Mines and Technology
• Peer Reviewed:
  False
• Start Date:
  20140901
• Source Full Name:
  Mine Ventilation: Proceedings of the 18th North American Mine Ventilation Symposium (NAMVS 2021), June 12-17, 2021, Rapid City, South Dakota
• End Date:
  20200831
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:985a28c75666c6ab7a3b081a725929a3fc28e81ff67ea9611bad04106b234d355812e76f224d2fb7977210d803065c38306baaa799c7ac711e6a0f757b4ff9de
• Download URL:
  https://stacks.cdc.gov/view/cdc/222157/cdc_222157_DS1.pdf
• File Type:
  [PDF - 365.86 KB ]