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针对山西大同唐山沟煤矿极近距离煤层在上覆煤层和采空区相互贯通顶板破碎情况下下煤层巷道围岩支护困难的技术问题,分析研究此条件下的巷道围岩变形破坏特征及其原因,提出了架注锚协同承载的支护技术,有效控制围岩的变形破坏,以该矿1120带式输送机大巷作为试验巷道,试验表明此巷道围岩得到了有效控制,确保了矿井的顺利生产。
Aiming at the technical problems of surrounding rock supporting and supporting at coal seam gateway under the circumstances that the coal seam near the Tangshangou coal mine in Datong, Datong, Shanxi, Reason, put forward anchor support synergistic bearing technology to effectively control the surrounding rock deformation and damage to the mine 1120 belt conveyor as a test lane tunnel, the test shows that the tunnel surrounding rock has been effectively controlled to ensure that the mine The smooth production.