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在过去的18个月里,国际镍公司曼尼托巴地区汤普逊矿一直在研究一种新采矿方法,它能够有效地改善工作面的安全条件和提高采场生产能力。目前,新型的垂直深孔球状药包后退式采矿方法正在许多地区进行试验。详细研究的中心是当前充填采矿法。通常矿工的任务就是采矿、出矿和支护。研究表明矿工在支护上(挑顶、锚杆、金属网)所用的时间比他们在生产性作业上的时间更多。因为现行的采矿方法只能每次回采12英尺较薄的分
In the past 18 months, Thompson Mine, an international nickel company in Manitoba, has been studying a new mining method that can effectively improve the safety conditions at the working face and improve the production capacity of the stope. At present, a new type of vertical deep-hole spherical kits retrograde mining method is being tested in many areas. The center of detailed research is the current filling mining law. Mine workers are usually the task of mining, mining and support. Research shows that miners spend more time on support (picks, bolts, wire meshes) than they do on productive work. Because the current mining method can only be extracted at 12 ft thinner points each time