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Numerical modeling procedures for practical coal mine design.

Authors
Zipf-RK Jr.
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
NIOSHTIC No.
20032093
Abstract
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.
Keywords
Mining-industry; Underground-mining; Coal-mining; Hard-rock-mines; Mathematical-models; Analytical-models; Engineering
Contact
National Institute for Occupational Safety and Health, Pittsburgh Research Laboratory, 626 Cochrans Mill Road, Pittsburgh, PA 15236
Publication Date
20070501
Document Type
Conference/Symposia Proceedings
Editors
Mark-C; Pakalnis-R; Tuchman-RJ
Fiscal Year
2007
NTIS Accession No.
NTIS Price
NIOSH Division
PRL
Source Name
Proceedings of the International Workshop on Rock Mass Classification in Underground Mining
State
PA
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