煤层稳定性是确定煤矿勘探类型和勘探网密度很重要的参数。但就现有文献和规范来看,都只是作了一些定性的文字描述。因为它与勘探工程量之间的关系十分密切,所以在实际勘探工作中非常希望能有一种定量的方法。但由于煤层稳定性受(1)煤层厚度的两极值及其偏离平均值的大小;(2)煤层厚度值是否有变薄到最低可采厚度之下;(3)煤层厚度变 Coal seam stability is a very important parameter for determining the type of exploration and the density of the exploration network. However, judging from the existing documents and norms, only some qualitative textual descriptions have been made. Because of its close relationship with the amount of exploration work, it is highly desirable to have a quantitative method in actual exploration work. However, due to the stability of coal seam, it is affected by (1) the two extreme values ​​of coal seam thickness and its deviations from the average value; (2) whether the thickness of coal seam is thinned below the minimum recoverable thickness; (3)