大冶铁矿2^#挂帮矿开采方法研究

Study on the Mining Method for the 2^# Hanging Wall Ore in Daye Iron Mine

探讨了国内外挂帮矿开采方法,将其按开采方式的不同分为外扩境界露天开采、地下开采和露天-地下联合开采3类,并就各自特点进行了述评。针对大冶铁矿2#挂帮矿的实际,考虑到F13断层的影响,研究了它的开采方法、回采工序和运输方式,并提出了在开采过程中应注意的安全问题,重点讨论了减震控制爆破技术和边坡变形监测。

Mining methods used for hanging wall ore at home and abroad have been discussed. They can be classified into open-pit mining by extending boundary, underground mining, open-pit and underground combined mining. Taking the effects of F13 fault into consideration, the mining method, stoping procedure and conveyance method for the practical situation of 2^# hanging wall ore in Daye Iron Mine are discussed. Some safety problems which should be paid more attention during the mining were also proposed, with the discussion mainly focused on the blasting with shock absorption technology and slop deformation monitoring.