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| 形掏槽炮孔布置成V形的隧道掏槽，是倾斜孔掏槽的一种形式，也叫楔形掏槽。在巷道中心线的两侧对称钻孔，也可以矿脉为对称线钻孔。 V 形掏槽又分为水平V形掏槽，竖直V 形掏槽和双V形掏槽。受工作面断面大小的限制,V 形掏槽一次爆破不易取得较大的进尺 | |||
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