Numerical Modeling of Stress–Strain Behavior of Rock Mass in the Course of Mining of Lower Strata in a Series

• Published in: Journal of mining science Vol. 59; no. 6; pp. 930 - 937
• Main Authors: Rib, S. V., Petrova, O. A., Nikitina, A. M., Boloshin, V. A., Fryanov, V. N.
• Format: Journal Article
• Language: English
• Published: Moscow Pleiades Publishing 01-12-2023; Springer Nature B.V
• Subjects: Coal; Coal mining; Earth and Environmental Science; Earth Sciences; Geomechanics; Geophysics/Geodesy; Geotechnical Engineering & Applied Earth Sciences; Mineral Resources; Mining; Numerical models; Roads; Rock; Rock masses; Rocks; Strain; Strata; residual strength; pillar; stresses; series; displacements; roadway; increased rock pressure zone; coal seam; rock mass
• ISSN: 1062-7391; 1573-8736
• DOI: 10.1134/S1062739123060066

The features of mining of a coal series are described. The stress–strain behavior of rock mass during mining of the lower strata in the series is assessed with regard to the influence of coal pillars and upper level roadways. Different variants of location of a temporary roadway on the lower stratum in a series protected by a pillar are discussed. The implemented prediction of the stress–strain behavior of rock mass is adapted to the conditions of mines in the south of Kuzbass. This prediction is used to select the geomechanically safest variant of location of the temporary roadway.