The stability of goaf-side roadways depends on not only the abutment distribution, but also the fracturing degree of the coal seam and rock strata alone the pillar width.
一侧采空巷道稳定性不仅与支承压力分布有关，而且与煤体受破坏程度有关。
Because of qualitative divisions of structure complexity and coal seam stability were used in geological reports of Puxi and Futaixia minefields caused deviation in results.
浦溪、富台下等井田地质报告中采用定性方法划分构造复杂程度与煤层稳定程度，其结果存在偏差。
The stability of seam roof is one of the most important factors that influences the safety of coal extraction.
煤层顶板的稳定性是影响煤层回采工作安全最重要因素之一。
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