【摘要】 论述了掏槽爆破理论与技术的发展现状，提出平巷直眼掏槽爆破新方法。动光弹模型实验及现场生产试验表明，采用这种新的掏槽爆破方法，平巷掘进中深孔爆破的炮孔利用率可以达到９８％，可取得明显的经济和社会效益。更多还原

【Abstract】 The developments of cut blast theory and technology are expounded and the new method of cut blast with holes perpendicular to the work face in drift is put forward.Through the model experiments by the dynamic photo-elasticity and the in-situ production tests,the ratio of utilized borehole has reached 98% in the blast with medium-deep hole of drifting using the new method of cut blast.The obvious economic benefits and the social benefits have been gotten.更多还原