论文部分内容阅读
凤凰山铁矿14号矿块位于—100米中段的主井部位,储量大、品位高、开采条件好,在当前凤凰山采区—100米中段厚大部分富矿体开采即告结束,—150米中段尚未作好采准工程的情况下,开采14号矿块、无论从今后产品质量平衡和产量衔接上,都具有重要的现实意义;开采14号矿块也是坚持开采顺序的合理工程布局问题。但是由于该矿块距主井井筒较近,担心在开采过后是否将会由于岩层的错动而危及主井的安全?14号矿块应如何做到合理开采?本文将对这些问题加以分析和论述,与同志们共同商榷。
The Fenghuangshan Iron Mine No. 14 ore block is located in the main shaft of the middle section of -100 meters with large reserves, high grade and good mining conditions. In the current mid-1300 meters of the Fenghuangshan mining area, the mining of most thick ore bodies ends, 150 meters in the middle has not yet made good quasi-engineering case, the mining of No. 14 nuggets, both from the future product quality balance and yield convergence, has an important practical significance; mining 14 is also a mining block mining rational engineering layout problem. However, due to the proximity of the ore block to the main shaft, whether the safety of the main shaft will be endangered by the dislocation of the strata after mining is over? How should the No.14 ore block be properly exploited? This paper will analyze these issues and Discussion, and comrades to discuss.