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迎采动工作面沿空掘巷受超前采动支承压力和侧向支承压力叠加的影响,巷道围岩应力增加,巷道产生大变形。结合下梨园矿工程地质条件,采用数值模拟计算的方法,对迎采工作面沿空掘巷煤柱的合理宽度进行研究。
The gob-side entry of mining face with gob-side entry is affected by superposition of supporting pressure and lateral supporting pressure in advance, the stress of surrounding rock of the roadway increases and the deformation of the roadway is large. Combined with the engineering geological conditions of Liyuan Coal Mine, the reasonable width of coal pillar along gob-side entry facing coal face mining is studied by numerical simulation method.