CAJ | 학술논문

为提高煤矿坚硬岩石巷道的掘进速度，对钻孔直径和炮泥配比进行了优化，并计算了炮孔的填塞长度。现场试验结果表明：爆破参数优化后，循环进度提高约0.2～0.3 m，平均掘进速度提高7m/月，还降低了爆破后一氧化碳和粉尘浓度，改善了井下的职业卫生条件并降低了材料成本。
위제고매광견경암석항도적굴진속도，대찬공직경화포니배비진행료우화，병계산료포공적전새장도。현장시험결과표명：폭파삼수우화후，순배진도제고약0.2～0.3 m，평균굴진속도제고7m/월，환강저료폭파후일양화탄화분진농도，개선료정하적직업위생조건병강저료재료성본。
In order to enhance the excavation velocity of hard rock drift in coal mine, the drill diameter and stemming mixing ratio were optimized. The stemming length of blast hole was also calculated. The site experiment results show that after the optimizing of blasting parameters, the cycle footage is enhanced by 0.2~0.3 m and the average footage was enhanced by 7 m per month ,also decreased the density of carbon monoxide and dust so as to improve the occupational health conditions,the stemming material cost is also decreased.