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针对刘桥一矿Ⅱ46下采区下部车场位于矿井深部且围岩极为破碎的特点,提出了高强稳定型锚网索耦合支护方案。矿压观测表明,采用该锚网索支护可以大幅度提高支护承载结构的支护强度和结构稳定性,锚索起到了关键的结构补偿作用。
Aiming at the characteristics that the lower yard of Ⅱ 46 sub-section in Liuqiao No.1 Mine is located in the deep mine and the surrounding rock is extremely fragmented, a scheme of high strength and stability type anchor-net coupling support is proposed. Rock pressure observation shows that the support of the anchor net can greatly improve the support strength and structural stability of the supporting structure, and the anchor cable plays a key role in structural compensation.