Assessing support alternatives for longwall gateroads subject to changing stress

• Published in: International journal of mining science and technology Vol. 31; no. 1; pp. 103 - 110
• Main Authors: Esterhuizen, Gabriel S., Tulu, I. Berk, Gearhart, Dave F., Dougherty, Heather, Van Dyke, Mark
• Format: Journal Article
• Language: English
• Published: Netherlands Elsevier B.V 01.01.2021; National Institute for Occupational Safety and Health,Pittsburgh Mining Research Division,Pittsburgh,PA 15236,USA%West Virginia University,Morgantown,WV 26506,USA; Elsevier
• Subjects: Coal; Gateroad; Longwall; Standing support; Support design; Longwall; Support design; Standing support; Gateroad; Coal
• ISSN: 2095-2686
• DOI: 10.1016/j.ijmst.2020.12.016

Longwall gateroad entries are subject to changing horizontal and vertical stress induced by redistribution of loads around the extracted panel. The stress changes can result in significant deformation of the entries that may include roof sag, rib dilation, and floor heave. Mine operators install dif...