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针对新疆艾维尔沟矿区2130煤矿坚硬顶板厚煤层开采条件,通过对25221回风巷和调整回风巷间煤柱及巷道顶板破碎原因进行分析,提出采用工作面超前爆破弱化老顶降低围岩应力和跨巷注浆加固围岩相结合的回采巷道破碎围岩修复技术。该技术在不影响25221回风巷正常使用的同时,很好地解决了25221工作面回风巷和调整回风巷之间煤柱及巷道顶板破碎严重、巷道不易维护的难题,对回采巷道破碎围岩控制技术研究具有积极的参考价值。
Aiming at the mining conditions of 2130 coal seam hard roof thick seam in Aiweiergou mining area in Xinjiang, by analyzing the reason of coal pillar and roadway roof crushing in 25221 return airway and adjusting return airway, it is proposed that using advanced blasting to weaken surrounding roof stress Roadway Broken Surrounding Rock Restoration Technology Combined with Surrounding Grouting Reinforced by Cross Grouting. The technology does not affect the normal use of 25221 return airway at the same time, a good solution to the 25221 working face return airway and adjust the return airway between coal pillar and roadway roof broken serious roadway difficult to maintain the problem, the mining roadway broken Surrounding rock control technology research has a positive reference value.