Analysis and Control of Deformation and Instability Patterns in Roadways Underneath Coal Pillars
In order to solve the problems of severe deformation and surrounding rock damage in the mining roadway under the coal pillar during actual mining,based on the analysis of the site conditions and support status,the instability characteristics of the mining roadway under the current support state are comprehensively analyzed.A plan is proposed for reinforcing and supporting the mining roadway,and a detailed design of the plan is conducted.Finally,the control effect of the reinforcement and pressure relief scheme on the surrounding rock was verified through practical production.
coal pillarmining roadwaygrouting reinforcementcutting the top to relieve pressureanchor bolt and anchor cable reinforcement support
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