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A user's guide for the Bplane, Bstepp, and Bwedge computer programs.
Miller-S; Whyatt-J; Girard Dwyer-J; McHugh-E
Spokane, WA: U.S. Department of Health and Human Services, Public Health Service, Centers for Disease Control and Prevention, National Institute for Occupational Safety and Health, DHHS (NIOSH) Publication No. 2007-108 (IC 9494), 2007 Mar; :1-68
This user's guide covers the operation of a suite of three computer programs-Bplane, Bstepp, and Bwedge. These programs can be used to evaluate the potential for plane shear, step-path, and wedge failures along the crest of a slope bench. Such failures reduce the width of a catch bench and may compromise the bench's ability to catch rolling or sliding material before it reaches miners working below. The Bplane and Bwedge programs address sliding of blocks defined by continuous planar joints. The Bstepp program examines sliding of blocks defined by more complex failure surfaces that include steeply dipping cross joints and may even include breaks across small bridges of intact rock. The programs are applicable to jointed rock masses where the joints are small relative to the overall slope and form a number of sets with uniform statistical characteristics within a slope sector The theoretical basis, application, and operation of these programs are described.
Mining-industry; Computer-models; Computer-software; Models; Injury-prevention; Accident-prevention
National Institute for Occupational Safety and Health, Spokane Research Laboratory, 315 E. Montgomery Avenue, Spokane, WA 99207
Numbered Publication; Information Circular
NTIS Accession No.
DHHS (NIOSH) Publication No. 2007-108; IC-9494
National Institute for Occupational Safety and Health
Page last reviewed: April 12, 2019
Content source: National Institute for Occupational Safety and Health Education and Information Division