1、引言近年米波兰煤炭工业生产的发展要求继续改进检测开采煤层瓦斯危险的方法。为使煤矿安全工作达到一个更高的水平,必须改进确定这些危险状态的方法。确定这些危险有两个方面。一个检测天然介质中,即煤层中瓦斯的聚集情况,另一个的是检测瓦斯向矿井大气中的涌出情况。在每种情况下,估计这些危险的正确性都取决于煤层的瓦斯含量。所用的 1. Introduction In recent years, the development of the Mie Poland coal industry has required the continuous improvement of the method of detecting the gas hazard of coal seam mining. In order to achieve a higher level of safety in coal mines, ways of determining these dangerous conditions must be improved. There are two aspects to identifying these dangers. One examines the accumulation of gas in natural media, the coal seam, and the other is the detection of gas gushes to the mine atmosphere. In each case, estimating the correctness of these hazards depends on the gas content of the coal seam. Used