预控顶分段空场嗣后充填采矿法高效回采支护技术研究  

Research on High-efficiency Back Mining Support Technology of Precontrol Roof Segmented Empty Field Subsequent Filling Mining Method

作　　者：耿帅 孙丁丁 高光宇 何伟 尹爱民 宁刘伟 GENG Shuai;SUN Dingding;GAO Guangyu;HE Wei;YIN Aimin;NING Liuwei(Hebei Iron and Steel Group Shahe Zhongguan Iron Mining Co.,Ltd.,Xingtai 054100,China;Hebei Complex Iron Ore Low Carbon Intelligent and Efficient Mining Technology Innovation Center,Xingtai 054100,China)

机构地区：[1]河北钢铁集团沙河中关铁矿有限公司,河北邢台054100 [2]河北省复杂铁矿低碳智能高效开采技术创新中心,河北邢台054100

出　　处：《煤炭技术》2025年第3期31-34,共4页Coal Technology

摘　　要：为解决某铁矿破碎围岩区域回采稳定性问题,采用预控顶分段空场嗣后充填采矿法安全高效回采,开展预控顶巷道支护方案优化研究。以某铁矿北部区域破碎矿体为研究对象,结合矿体赋存条件、预控顶作用机理及岩体稳定性等因素,提出预控顶分段空场嗣后充填采矿法的技术方案;其次结合现有采切工程布置方案,对采矿方法进行优化,提出了“锚网喷+短锚索+长锚索”的护顶巷联合支护方法。现场实践验证,该预控顶支护技术适合破碎围岩矿体的开采技术条件,具有采场稳定性好、损失贫化率低、综合回采成本低等优点,取得良好应用效果,研究成果可为类似矿山高效回采提供一定的参考。In order to solve the problem of mining stability in the area of crushed surrounding rocks of an iron ore mine,safe and efficient mining is carried out by adopting the pre-control roof segmented empty field subsequent filling mining method,and the optimisation of the pre-control roof roadway support scheme is carried out.Taking the broken ore body in the northern region of an iron ore mine as the research object,combined with the conditions of the ore body,the mechanism of the pre-control roof action and the stability of the rock body,put forward the technical scheme of the pre-control roof segmented empty field subsequent filling mining method;secondly,combined with the existing mining and cutting engineering layout,optimize the mining method and put forward the joint support of the roof lane with the method of"anchor net spraying+short anchors+long anchors".Field practice verification,the pre-control roof support technology is suitable for the mining technology conditions of broken peripheral rock ore body,good stability of the quarry,low loss of depletion rate,low comprehensive cost of recovery,etc.,to achieve good application results,the research results can be similar to the mines provide a certain reference for efficient recovery.

关 键 词：破碎矿体 预控顶支护 分段空场嗣后充填采矿法 联合支护技术 

分 类 号：TD853[矿业工程—金属矿开采]