论文部分内容阅读
兰尖铁矿是全国大型露天铁矿之一。设计年产铁矿650万吨,其中兰山采场500万吨,系该矿最主要的采矿场。兰山采场1525水平及其以上各水平,近几年来的开拓方式均采用沿兰2号溜井塌空区西帮,自下盘向上盘即由南向北开双壁沟的方案。1987年,由于该采场已下降到1510水平,一些重要的开采技术条件相应地发生了较大的变化。本文就是在客观地分析了这些变化的基础上,提出了关于1510新水平开拓改向的建议。并着重论述了改向构想的由来,改向的具体方案,以及改向后的经济效益及其远景设想。
Lanjian Iron Mine is one of the largest open-pit iron ore mines in the country. Designed with an annual output of 6.5 million tons of iron ore, of which 5 million tons of Lanshan stope, Department of the mine’s most important mining. Lanshan stope 1525 level and above all levels, in recent years to develop ways are used along the Lan No. 2 slip-hole West West help, from the lower plate to the plate that is, from south to north double-trench ditch program. In 1987, due to the fact that the stope had dropped to the level of 1510, a number of major mining technology conditions have undergone major changes. This article is based on the objective analysis of these changes, put forward suggestions on the 1510 new level of development to change direction. And emphatically discusses the origin of the idea of redirecting, the specific plan of redirecting, and the economic benefits after the redirection and its vision.