NIOSHTIC-2 Publications Search

Static and dynamic loads in a scaled ore pass.

Authors
Scott V; Drescher A; Iverson S; Beus MJ
Source
Pacific rocks 2000: rock around the rim--proceedings of the Fourth North American Rock Mechanics Symposium, NARMS 2000, Seattle Washington, July 31-August 3, 2000. Girard JM, Leibman M, Breeds C, Doe T, eds. Brookfield, VT: A.A. Balkema, 2000 Jul; :381-386
Link
NIOSHTIC No.
20021063
Abstract
The National Institute for Occupational Safety and Health (NIOSH) has identified ore pass failure as a significant safety, problem in underground metal mines. Analysis of some previous failures suggests that ordinary service loads of ore passes are exceeding the anticipated design loads. Field tests of a one-third scale model of an actual ore pass were conducted in Spokane, Washington to determine, the static and dynamic loads on the gate and the distributions between static and dynamic loads with increasing height of material. The effect of adding springs to the gate structure to dissipate energy due to dynamic loads was also investigated. Materials used were river gravel and crushed rock. The static results were compared to classical bin-load theory. Some variation from classical bin-load theory was observed and suggests that some modifications of the theory may be reauired.
Keywords
Ore pass; Failure analysis; Safety; Underground mines; Metal mining; Models; Materials handling; Materials transport; Gravel; Rock mechanics; Soil mechanics; Exposure levels; Risk factors
Contact
V. Scott, University of Minnesota, Minneapolis; MN
Publication Date
20000731
Document Type
Conference/Symposia Proceedings
Editors
Girard JM; Leibman M; Breeds C; Doe T
Fiscal Year
2000
ISBN No.
9789058091550
NIOSH Division
SRL
Source Name
Pacific rocks 2000: rock around the rim--proceedings of the Fourth North American Rock Mechanics Symposium, NARMS 2000, Seattle Washington, July 31-August 3, 2000
State
MN; WA; VT
Page last reviewed: April 12, 2019
Content source: National Institute for Occupational Safety and Health Education and Information Division