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length formula of charge calculation
expl.
考虑装药深度的计算
ГИ・波克罗夫斯基〈Покpовcкий〉认为,当增加装药深度时,不仅被破碎介质体积增加,而且消耗于抬高每立方米介质体积的能量也一定增加。据此提岀下列公式:对于土质,当 W>, 20m 时,Q =(0.4 + 0.6n³)・q・W³ √ W/20 对于矿岩,当W>, 15m 时,Q = (0.4+0.6n³)・q・W³ √W/15
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