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通过43上02工作面现场支架受载测试和矿压显现特征的观测、分析,以及通过夹矸厚度变化对顶煤冒放性的影响观测,采取相应的技术措施,成功地回收了该工作面3上A煤,消除了不安全隐患,提高了资源采出率,并取得了明显的经济效益,为类似条件下的回采积累了经验。
Through the observation and analysis of the on-site support load test and the characteristics of mine pressure on 43 02 working face and the observation of the effect of the change of gangue thickness on the top coal discharge, the corresponding technical measures were taken to recover the working face 3 on A coal, eliminating unsafe hidden dangers and improve the recovery rate of resources, and achieved significant economic benefits, for the recovery of similar conditions have accumulated experience.