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拉底炮孔
沿巷道及开挖面底板钻凿的水平炮孔。其爆破俗称抬炮。由于在其抵抗线方向上堆积着上一段炮孔爆落的岩块而增加了底板水平炮孔的负荷,所以在设计时,其孔距应小于其他炮孔的间距,并适当增加炸药量。参见 floor hole; bottom hole
expl.
lifter
拉底炮孔
沿底部等高线所钻的孔,参见 lifters
expl.
floor holes
拉底炮孔
:
4 phrases
in 1 subject
Explosives and Explosive Ordnance Disposal
4
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