国庄矿北大巷突水通道分析
Analysis on water-inrush passage way in the north main roadway in Guozhuang Coal Mine
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摘要: 通过对突水水源、突水量特点、固体突出物的总量、突出物的成分组合、突出物的形状以及松散物的主要成分等分析,认为肥城煤田国庄矿北大巷突水通道为岩溶陷落柱。Abstract: The paper analyses the water-inrush source,inrush water quantity characteristics,distributive feature of inrush material,inrush material composition,and proposes that the water-inrush passageway in the north main roadway in Guozhuang coal mine is collapse column.