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巷道与上部煤柱边缘之间的水平距离X,是底板岩巷和邻近煤层巷道布置的重要参数。本文根据矿山压力的研究成果,阐述了上部煤层采动状况,巷道围岩性质,巷道与上部煤层之间的垂距Z、以及巷道与上部煤柱边缘间水平距离X间的定量关系,为正确选择X值及巷道与上部煤层回采空间的相对位置关系提供了主要依据。
The horizontal distance X between the roadway and the edge of the upper coal pillar is an important parameter for the arrangement of floor rock roadway and adjacent coal seam roadway. Based on the research results of mine pressure, this paper expounds the quantitative relationship between the mining conditions of the upper coal seam, the properties of the surrounding rock of the roadway, the vertical distance Z between the roadway and the upper coal seam, and the horizontal distance X between the roadway and the edge of the upper coal pillar. Select the X value and the relative position of the upper coal seam mining space provides the main basis.