Open AccessProcedure for lab-scale strength and failure testing of physical models of frame mine structures
Author(s) -
N. G. Vysotin,
V. I. Leizer,
В. А. Еременко,
A. M. Yanbekov
Publication year - 2021
Publication title -
iop conference series earth and environmental science
Language(s) - English
Resource type - Journals
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/684/1/012012
Subject(s) - strain gauge , frame (networking) , structural engineering , deformation (meteorology) , rock mass classification , block (permutation group theory) , geotechnical engineering , engineering , stress (linguistics) , plan (archaeology) , similarity (geometry) , geology , computer science , mechanical engineering , geometry , artificial intelligence , mathematics , linguistics , oceanography , philosophy , paleontology , image (mathematics)
Operation of any mine, including frame structured mines, alters the stress–strain behavior of enclosing rock mass. The laboratory research requires a plan and a procedure, with description of data acquisition methods (monitoring of strength and deformation characteristics of physical models of the frame mine structure). The implemented laboratory tests used the specially manufactured physical models, a hydraulic pressing machine meant for simulation of strata pressure, as well as a monitoring system including acoustic emission converters and strain gauges. The equipment allows getting an overall picture and enables the stress–strain analysis in a unit block using the theories of similarity and dimensions to understand the influence exerted by the shape, size and arrangement of mined-out stopes on enclosing rock mass stability in case of the frame mine structure.
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