基于松动圈测试区段煤柱合理留设尺寸的探究

Research on Reasonable Dimension of Coal Pillar Based on Loose Circle Test Area

根据山西某矿工作面的实际地质条件,结合松动圈测试方法,对8109回风顺槽与8110运输顺槽之间煤柱合理留设尺寸进行了研究。研究结果表明:根据松动圈测试结果分析,8109回风顺槽与8110运输顺槽在受到采动影响作用后,巷道测得的松动圈最大值是2.6 m,煤柱的合理宽度是10 m,且经过理论计算表明,煤柱宽度为20 m。综合以上研究结果,8109回风顺槽与8110运输顺槽之间煤柱的合理宽度为20 m。

According to the actual geological conditions of a coal face in Shanxi province and combined with theloosening circle test method, the reasonable size of coal pillars between 8109 return air chute and 8110 transport chutewas studied. The results show that the maximum value of loosening circle is 2.6 m and the reasonable width of coalpillar is 10 m. The theoretical calculation shows that the width of coal pillar is 20 m. Based on the aboveresearch results, the reasonable width of coal pillar between the 8109 return air trough and the 8110 transportationtrough is 20 m.