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针对金庄矿8202工作面沿空巷道在整个掘进及回采期间围岩变形量大、矿压显现剧烈等问题,提出在采空区侧实体煤内布置卸压巷的方案。然后通过FLAC3D数值模拟软件分析沿空巷道围岩垂直应力分布规律、卸压巷在不同位置下对沿空掘巷围岩应力的影响。
Aiming at the problems such as the deformation of gob-side entry in 8202 working face of Jinzhuang Mine during the whole excavation and recovery period and the drastic underground pressure, the scheme of disposing the pressure-relief lane in the solid coal at the gob area is proposed. Then the vertical stress distribution law of surrounding rock along gob-side roadway is analyzed by FLAC3D numerical simulation software. The influence of pressure relief roadway on the surrounding rock stress of gob-side entry roadway under different positions is analyzed.