Determination of Volumetric Changes at an Underground Stone Mine: A Photogrammetry Case Study

Details

• Personal Author:
  Ellenberger, John L. ; Murphy M ; Slaker B ; Westman E
• Description:
  Photogrammetry, as a tool for monitoring underground mine deformation, is an alternative to traditional point measurement devices, and may be capable of accurate measurements in situations where technologies such as laser scanning are unsuited, undesired, or cost-prohibitive. An underground limestone mine in Ohio is used as a test case for monitoring of structurally unstable pillars. Seven pillars were photographed over in a 63 day period, punctuated by four visits. Using photogrammetry, point clouds of the mine geometry were obtained and triangulation surfaces were generated to determine volumes of change over time. Pillar spalling in the range of 0.29-4.03 m3 of rock on individual rib faces was detected. Isolated incidents of rock expansion prior to failure, and the isolated failure of a weak shale band were also observed. Much of the pillars remained unchanged during the monitoring period, which is indicative of proper alignment in the triangulated surfaces. The photographs of some ribs were of either too poor quality or had insufficient overlap, and were not included. However, photogrammetry was successfully applied to multiple ribs in quantifying the pillar geometry change over time. [Description provided by NIOSH]
• Subjects:
  Mining Occupational Health Safety
• Keywords:
  Author Keywords: Photogrammetry Displacement Limestone Measurement-equipment Monitoring Monitors Stone-mines Underground-mining Underground Mining
• Series:
  Mining Publications
• ISSN:
  2095-2686
• Document Type:
  Text
• Genre:
  Journal Article
• Place as Subject:
  OSHA Region 3 ; Pennsylvania ; Virginia
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Division:
  PMRD - Pittsburgh Mining Research Division
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Pages in Document:
  149-154
• Volume:
  26
• Issue:
  1
• NIOSHTIC Number:
  nn:20047335
• Citation:
  Int J Min Sci Technol 2016 Jan; 26(1):149-154
• Contact Point Address:
  Brent Slaker, Virginia Polytechnic Institute and State University, Blacksburg VA 24060
• Email:
  slakerba@gmail.com
• Federal Fiscal Year:
  2016
• Peer Reviewed:
  True
• Source Full Name:
  International Journal of Mining Science and Technology
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:9ce2373185ad410c26538d8e7aaf82ec95feeaac6d62bc449165f75859b065d4787b066572849d151f63f72beeeca92b2961358bb8310a56bf942314b78b4f54
• Download URL:
  https://stacks.cdc.gov/view/cdc/228225/cdc_228225_DS1.pdf
• File Type:
  [PDF - 2.59 MB ]