坚硬顶板综采面强制放顶技术

Forced caving technology in fully mechanized working face with hard roof

根据7号煤层顶板情况,参照邻近采面坚硬顶板处理经验,制定了8702工作面强制放顶炮眼布置方案,确定了合理的炮眼参数。强制放顶实施后,消除了采空区顶板大面积悬露形成的威胁,保证了采面安全生产,取得了较好的技术经济效益。

According to the situation of coal seam No. 7, referring to the processing experience of the adjacent mining face of hard roof, has developed 8702 working face forced caving hole arrangement, and determined the reasonable hole parameters. After the implementation of forced caving, eliminating the security threat caused by the goal roof hanging, ensuring the safe production of mining face, which obtained a good economic benefit.