Open AccessANALISYS OF SOLID STRESS-STRAIN BEHAVIOR WHEN PROTECTIVE PILLAR OF VERTICAL SHAFT IS DEVELOPED
Author(s) -
С. А. Неверов,
Yuri N. Shaposhnik,
Alexander Hikolsky
Publication year - 2019
Publication title -
interèkspo geo-sibirʹ
Language(s) - English
Resource type - Journals
ISSN - 2618-981X
DOI - 10.33764/2618-981x-2019-2-4-200-211
Subject(s) - pillar , mining engineering , context (archaeology) , lithology , geotechnical engineering , geology , stress (linguistics) , engineering , structural engineering , petrology , paleontology , linguistics , philosophy
In the context of the paper, carried out study complex is devoted to geomechanical estimation of safe development of ore reserves including barrier pillar within protective pillar of shaft of Irtishskaya Ore Mine with determination of influence rate of occurring stresses and strains in a solid on its condition and on capital workings and ground surface.Due to absence of active reserve reproduction of mineral raw materials at active ore mines, issues of pillar redevelopment become extremely important. It is established that in some deposits, losses in boundaries of protective pillars for protective objects reach 30 and more percent from balanced reserves.The possibility of safe extraction of parts of reserves from protective pillar of shaft without negative consequences for mine operation and for objects located at daylight surface is justified, based on analytical solutions and finite-element simulation in terms of Irtishskaya Mine.The most significant issue in the paper is using of mathematical simulation considering geo-structural features of the deposit, solid lithology, physical and mechanical properties of rock geo-metrical difficulty of mining objects and regulatory documentation for significant of extension of knowledge about studying of stability estimation of workings and ground surface.It is established that as main safety way for mine shaft ore barrier pillars should be leaved when reserves from protective pillar is depleted.