Rock Mass–Multifunction Mobile Roof Support Interaction in Mining

• Published in: Journal of mining science Vol. 57; no. 3; pp. 361 - 369
• Main Authors: Klishin, V. I., Fryanov, V. N., Pavlova, L. D., Nikitenko, S. M., Malakhov, Yu. V.
• Format: Journal Article
• Language: English
• Published: Moscow Pleiades Publishing 01-05-2021; Springer; Springer Nature B.V
• Subjects: Coal industry; Coal mining; Current prediction; Deformation; Earth and Environmental Science; Earth Sciences; Finite element method; Geomechanics; Geophysics/Geodesy; Geotechnical Engineering & Applied Earth Sciences; Mineral industry; Mineral Resources; Mining; Mining industry; Rock; Rock masses; Rocks; Roofs; Underground mining; mobile roof support; development heading; finite element method; modeling exercise; stresses; residual strength factor
• ISSN: 1062-7391; 1573-8736
• DOI: 10.1134/S1062739121030017

The authors propose a dedicated mobile roof support for underground coal mining. Joint deformation of roof rocks and roof support is analyzed using the finite element method. The shapes and sizes of failure zones and the influence of the support on coal and host rocks are determined. The application area for the mobile roof support in underground mining is outlined, and the essentiality of the current prediction method of dynamic events during mining is substantiated. It is feasible to increase the rate of heading by means of reduction of the heading cycle duration.