论文部分内容阅读
张小楼矿井煤层有机质特征及瓦斯灾害性认识徐州矿务局祝青，卜凡启，邢少春我矿在地质勘探期间没有进行过专门的瓦斯测定工作。１９７３年投产前．根据邻近矿井瓦斯涌出资料，采用类比法定为一级瓦斯矿井。但投产以来，经实际测定瓦斯涌出量逐年增大，并多次发生瓦斯喷出...
Zhang Xiaolu Coal Seam Organic Matter Characteristics and Gas Disaster Recognition of Xuzhou Mining Bureau Zhu Qing, Bu Fanqi, Xing Shaochun Our mine did not conduct any special gas measurement during geological exploration. Put into operation before 1973. According to the data of gas emission from nearby mines, the analogy is adopted as the first-grade gas mine. However, since put into production, the actual measured gas emission increased year by year, and many gas blowout occurred ...