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许多以露天开采的矿山,由于下部矿体向深处延伸,变薄或有盲矿体存在,若继续以露天开采回收这部分矿产资源,不仅在技术上存在一些问题,在经济上也不尽合理,因此需要转入地下开采。如金岭铁矿、利国铁矿、凤凰山铁矿、冶山铁矿、桃冲铁矿、浬渚铁矿、甘肃某铜矿及江苏某瓷土矿等即属此类矿山。在化工矿山中、如浏阳磷矿、巢肥磷矿、息峰磷矿等也同样面临着由露天转地下开采的问题。本文系根据我们最近对几个金属矿山、非金属矿山所作的调查,着重介绍它们由露天开采转入地下开采时,在设计、基建与生产小的实践经验,
Many mines open-pit mining, due to the lower part of the ore extends to the depths, thinning or blind ore body, if continue to open-air recovery of this part of the mineral resources, not only technically there are some problems, but also not financially Reasonable, so need to dive into underground mining. Such as Jinling Iron Mine, Liuguo Iron Mine, Fenghuangshan Iron Mine, Ye Shan Iron Mine, Tao Chong Iron Mine, Juzhu Iron Mine, a copper mine in Gansu Province and a porcelain clay mine in Jiangsu Province belong to such mines. In chemical mines, such as Liuyang phosphate rock, nest fertilizer phosphate, phosphate rock and other interest peaks also face the problem of underground mining turn from open air. Based on our recent surveys of several metal mines and non-metallic mines, this article focuses on their practical experience in design, infrastructure and production as they move from open pit mining to underground mining.