东周窑矿5号煤稳定性定量评价与开采策略分析

Stability Quantitative Evaluation and Mining Strategy Analysis of No.5 Coal Seam in Dongzhouyao Coal Mine

大同煤田东周窑井田太原组5号煤是主采煤层,但井田内煤层厚度、夹矸层数及厚度变化大,导致煤层稳定性复杂,开采洗耗大,影响着矿井生产能力。本文采用常规半定量评价法与多层次模糊判别法相结合,对井田5号煤稳定性进行定量评价,且明确了其分级分区,提出开采建议,为矿井安全高效生产提供可靠地质保障。

The No. 5 coal seam of Datong coal field Dongzhouyao coal mine Taiyuan formation is mineable coal seams. Because of the large difference of coal thickness,number and thickness of rock parting,the coal seam shows complex stability,which influences mining wash consumption and production ability. The conventional semi-quantitative evaluation method combined with multilevel fuzzy discrimination method is adopted to quantitative evaluate No. 5coal seam stability. Classification and partition is determined. And puts forward suggestions,it provides reliable geological guarantee for mine safety and efficient production.