U.S. flag An official website of the United States government.
Official websites use .gov

A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS

A lock ( ) or https:// means you've safely connected to the .gov website. Share sensitive information only on official, secure websites.

i

Numerical Modeling Procedures For Practical Coal Mine Design; Proceedings Of The International Workshop On Rock Mass Classification In Underground Mining

Public Domain
File Language:
English


Details

  • Personal Author:
    Zipf, R. Karl, Jr., Ph.D.
  • Corporate Authors:
    National Institute for Occupational Safety and Health. Pittsburgh Research Laboratory
  • Description:
    A method is presented for creating realistic numerical models for practical coal mine ground control. The method includes procedures to collect the necessary mechanical input parameters from a geologic core log, procedures to set up a model, and procedures to interpret calculation results. The input parameters come from a detailed geologic core log and extensive point load tests of estimate rock layer strength. A suite of material property input parameters is proposed that allows the user to go from core log to numerical model inputs. Rock bolt anchorage properties are also linked to the material properties of each geologic layer in the model. Following this procedure leads to very realistic calculations of the rock failure process and rock support system behavior. These calculations in turn enable realistic comparison of the effectiveness of alternative rock support systems.
  • Subjects:
  • Source:
    Proceedings of the International Workshop on Rock Mass Classification in Underground Mining. Mark C; Pakalnis R; Tuchman RJ, eds., Pittsburgh, PA: U.S. Department of Health and Human Services, Public Health Service, Centers for Disease Control and Prevention, National Institute for Occupational Safety and Health, 2007 May; :153-162
  • Document Type:
    Text
  • Genre:
    Conference Publications
  • CIO:
    National Institute for Occupational Safety and Health (NIOSH)
  • NIOSHTIC Number:
    nn:20032023
  • Collection(s):
  • Main Document Checksum:
    urn:sha-512:175f1196f808f084777765fd3064263eb1c63bc508029c60f4fc7c7f79c427bbea4cd6e9d796051cc4ba22949179324fa553ae0e557ad53028abcdc677881093
  • Download URL:
  • File Type:
    Filetype[PDF - 577.87 KB ]
PREVIOUS
File Language:
English
ON THIS PAGE
Details
CDC STACKS serves as an archival repository of CDC-published products including scientific findings, journal articles, guidelines, recommendations, or other public health information authored or co-authored by CDC or funded partners.

As a repository, CDC STACKS retains documents in their original published format to ensure public access to scientific information.
BACK TO TOP