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综放面初采期瓦斯涌出特征分析 被引量:5

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摘要 通过对阳泉五矿综放面初采期瓦斯涌出特征的分析 ,认为初采期瓦斯涌出量具有大幅度波动性的原因 ,主要为上邻近层瓦斯不断地周期性大量涌入。其涌入量的大小主要受上邻近煤岩层内瓦斯的赋存状况及其采动卸压范围的控制。顶板的突然垮落及上覆岩层裂隙、裂缝的瞬时产生是造成初采期瓦斯突然增大的主要原因。
作者 王锦
出处 《煤》 2000年第1期49-51,共3页 Coal
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