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shi men zhen dong fang pao jie kai tu chu wei xian mei ceng zhu yao bao po can shu de que ding
Pages: 34-36
Year: Issue:  1
Journal: Safety in Coal Mines

Keyword:  突出危险煤层震动放炮爆破参数沼气突出石门炸药消耗量断面积煤层厚度岩石硬度突出煤层;
Abstract: <正> 石门揭开突出危险煤层最易发生强度较大的煤与沼气突出(以下简称突出)。据不完全统计,从1958~1976年,在
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