This paper analyzes on the influence of the variation in thickness of coal seam and the supporting method on the coal quality,and based on this,advances some measures for reducing the gangue production to improve the coal quality on the tunneling faces.

• 分析了煤层厚度变化和支护方式对煤质的影响,在此基础上提出了若干减少出矸以提高掘进工作面出煤质量的措施。