运用等值线图法评价煤层稳定程度之研究

A Study on Coal Seam Stability Assessment through Contour Method

煤层的稳定程度从标准到规范都是一个定性的分类,在实际工作中难以准确把握,往往因人而异。数理统计法虽然赋予了煤层稳定程度一个量的概念,但由于只考虑到各数据点的离散程度,不能反映各数据点的分布状态,亦不能真实、客观体现煤层的变化程度。合理选择煤层特征参数,以评价区各特征值为基础构建等值线图,是评价煤层稳定程度较为直观有效的方法。

From standards to criteria the coal seam stability is always a qualitative classification, it is difficult to grasp in practical works and cannot be treated equally without discrimination. The mathematical statistics although endow with coal seam stability a quantitative concept, but because of only considering dispersion of each data point, cannot reflect each data point distribution, as well as coal seam changing extent. To select coal seam characteristic parameters in reason and make up contour on the basis of each characteristic value in assessment area is rather intuitional and effective method to assess coal seam stability.