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在露天矿生产中,往往要剥离大量的废石,需用很多人工和设备,花费很长的时间。采用定向抛掷爆破,利用炸药的威力,把废石直接抛掷到指定地点,就可大大节省人力与设备,缩短工期,降低剥离费用。永登水泥厂石灰石矿山的顶部积有一层很厚的废石,山形较陡。他们在削顶工程中,经过研究和小型试验,最近成功地进行了一次规模较大的定向抛掷爆破。这次爆破,只用一个
In the production of open-pit mines, it is often necessary to strip a large amount of waste rock. It takes a lot of labor and equipment and it takes a long time. The use of directional casting blasting, the use of the power of explosives, the waste rock directly to the designated location, you can greatly save manpower and equipment, shorten the duration, reduce stripping costs. At the top of the limestone mine of Yongdeng Cement Plant, there is a thick layer of waste rock with a steep mountain shape. In the cut-down project, they conducted a series of large-scale directional blasting operations through research and small-scale tests. Only one is used for this blast