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.

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通过大煤样的瓦斯排放试验研究，揭示了顺序加载与逆序加载下的煤体变形与瓦斯排放量以及排放时间的相关性。

Through the testing research about gas drainage on outsize coal sample, the relativity of coal mass deformation and drainage quantity & time is opened out.

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