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介绍轻型放顶煤液压支架的产生及发展 ,开滦唐山矿针对煤层特点使用轻型放顶煤液压支架的情况和 2 4 92N、2 4 93工作面的概况 ,以及适应其条件的轻型放顶煤液压支架的特点和采放工艺 ,讨论了由此带来的良好经济效益和社会效益及推广前景。
This paper introduces the generation and development of light caving coal hydraulic support, the situation of light caving hydraulic support for the features of coal seam in Tangshan Coal Mine in Kailuan and the general situation of 2492N and 2493 working faces and the light caving coal suitable for its conditions Hydraulic support characteristics and mining technology, discussed the resulting good economic and social benefits and promotion prospects.