共查询到12条相似文献,搜索用时 62 毫秒
1.
2.
翁泉沟硼铁矿原设计生产能力为200万t/a,远不能满足扩建后选矿厂处理能力的需求。结合翁泉沟硼铁矿开采现状,通过分析采场矿体赋存条件,在采场实施分期开采方法和陡帮开采技术,结果表明,技术实施后迅速提高了采场的生产能力,降低了初期生产剥采比,缩短了投资回收期。 相似文献
3.
A. A. Kozyrev I. E. Semenova V. V. Rybin I. M. Avetisyan 《Journal of Mining Science》2015,51(4):659-665
The full-scale measurements of initial stresses and numerical modeling of stresses in rock mass enclosing deep open pit mine Zhelezny under planning at Kovdor Mining-and-Processing Integrated Work are presented in the article. The authors have located hazardous areas in pit wall rock mass and validated stability conditions for pit walls with steeply sloped benches. 相似文献
4.
5.
6.
7.
8.
9.
10.
11.
谢永生 《有色金属(矿山部分)》2012,64(2):21-29
利用陡帮分区开采工艺进行穆利亚希露天铜矿的采剥工作,可以调整采剥顺序、降低基建剥离量、均衡生产剥采比,同时可以尽早采出硬岩矿石,均衡湿法选冶厂软岩矿搅浸、硬岩矿堆浸的生产。陡帮分区开采工艺对穆利亚希露天铜矿采剥具有实际效果,同时可供类似矿山参考。 相似文献
12.
I. V. Sokolov A. A. Smirnov Yu. G. Antipin K. V. Baranovsky 《Journal of Mining Science》2013,49(1):90-98
Simultaneous extraction of ore reserves from open pitwall and the layer immediately adjacent to the open pit bottom results in higher volume of ore discharge in the limited bottom area, besides the bottom must be stable within the adjacent layer extraction interval. The authors select the pit bottom design with two-way alternate arrangement of loading entries, taking into account the use of power-driven load-haul-dumpers. The ore output with the given pit bottom design is evaluated. 相似文献