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成庄煤矿3308综放面由于瓦斯排放量大，多次造成因瓦斯超限停产。
Because gas drainage is strong in 3308 workface of Chengzhuang coal mine, stop production often takes place for above-the-common.
大倾角松软煤层综放面实现高产高效的关键之一是端面顶煤稳定性控制。
Stability control of the head faces top-coal is one of the key techniques of realizing high production and high efficiency to coal mining in fully mechanized top-coal caving face.
通过实验室相似模拟试验，对综放面收尾撤架空间的顶板稳定性进行了研究。
In the light of analogue test in laboratory, the stability of roof of fully mechanized working face with top coal caving is studied during withdrawing support at stop line.
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