北洺河铁矿无底柱分段崩落法大结构参数确定

Determination of Large Structural Parameter of Pillarless Sublevel Caving at Beiminghe Iron Mine

为提高北氵名河铁矿的采矿技术 ,开展了无底柱分段崩落法大结构参数的研究 ,研究确定了采用 15m× 18m的大结构参数及与该结构参数对应的爆破参数。该工艺已在北氵名河铁矿生产中应用 ,表明研究确定的结构参数及爆破参数合理 ,经济效益显著 ,作业条件改善。

To improve the mining technology of Beiminghe Iron Mine, research was made on the large structural parameter of pillarless sublevel caving. It was decided through the research to adopt a 15 m×18 m large structural parameter and the correspondent blasting parameters. The application of the technology in the production of Beiminghe Iron Mine showed that the adopted structural and blasting parameters were rational, which greatly improved the economic benefit and working conditions.