下告铁矿空场法转崩落法放顶工程爆破优化  

Roof Caving Blasting Optimization for Xiagao Iron Mine Mining from Open Stope to Caving

作　　者：王星[1,2,3] 孙国权[1,2,3] 杨家冕[1,2,3] 

机构地区：[1]中钢集团马鞍山矿山研究院有限公司,安徽马鞍山243000 [2]金属矿山安全与健康国家重点实验室,安徽马鞍山243000 [3]华唯金属矿产资源高效循环利用国家工程研究中心有限公司,安徽马鞍山243000

出　　处：《有色金属工程》2015年第B05期123-125,共3页Nonferrous Metals Engineering

基　　金："十二五"国家科技支撑计划项目(2012BAB14B01)

摘　　要：由于生产能力和地质条件等的要求,下告铁矿地下矿山需进行采矿方法的转换,在此期间,转换的衔接工序至关重要,空场法转崩落法过程中放顶形成覆盖层的工序是采矿方法能否顺利衔接的关键过程。根据采矿方法衔接工序,进行放顶过程中包括布孔方式、装药量、爆破步骤、装药方式、起爆方式及安全防护等方面的爆破优化设计,为矿山顺利实现采矿方法的转换提供重要依据,实践证明效果良好。Due to the requirement of production capacity and the geological conditions, the mining method of the underground mining needs to be transformed in Xiagao Iron Mine. In the meantime, the transition process for the conversion is important. The roof caving to the covering layers during the transferring from open stope to caving method is the key process for the successfully transferring. The blasting in the roof caving process is optimized, including hole arrangement, charge, blasting step, charging methods, initiating design and safety protection etc. based on the cohesion process of the mining method transferring, and an important reference is provided for the mining method successfully transferring. It is proven by practice that the results are excellent.

关 键 词：空场转崩落 放顶 爆破优化 

分 类 号：TD235[矿业工程—矿井建设]