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中文摘要：
为了更好地确定下部煤层巷道的合理位置及选择有关参数，研究煤柱在底板岩层内的应力分布规律，以大同煤矿集团公司云冈矿极近距离煤层群11—2#煤层为原型，利用理论分析和数值模拟相结合的手段，对其应力分布特征进行分析。该研究对云冈矿极近距离煤层群其他煤层安全高效开采具有一定的借鉴意义。
英文摘要：
In order to better determine the reasonable position of underlying coal seam roadway and select the relevant parameters, the stress distribution laws of pillar in the floor strata are researched, ultra-close coal seam group 11-2# coal seam in Yungang Mine of Datong Coal Mine Group as an example, using the method of theoretical analysis and numerical simulation, stress distribution characteristics are analyzed. The research has a certain reference significance for safe and efficient mining of other coal seams of ultra-close coal seam group in Yungang Mine.
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