综放工作面沿空留巷巷旁煤柱稳定性分析

The Stability Analysis on Coal Pillar in Fully-mechanized Caving Faces

针对古城矿井首采面采用沿空留巷时巷旁煤柱的宽度进行理论分析与计算,结果表明工作面沿空留巷巷旁煤柱留设较充裕,现场观察仅在煤柱顶角处存在局部的片帮和鼓包,通过缩小锚杆间排距并加密锚索对煤柱和顶板进行补强,效果满足预期要求。

In view of the first mining face of Gucheng Coal Mine using gob - side entiyretaining, the theoretical result shows that the design coal pillar mining design is logical, only in the roof and presence of the coal pillar for skiving and bulge, the scene can be through by a series steps for the measured along the empty left lane beside the coal pillar stability, the field measurement results indicate that the steps can meet the expected requirements.