为提高硬岩斜巷成型质量和施工效率,以桃园煤矿人行上山爆破施工为背景,分析了造成炮眼利用率较低、巷道超欠挖严重及施工效率较低的原因,结合理论计算和工程前期施工经验对各爆破参数进行优化.结果表明：优化后的爆破方案采用全断面一次起爆,掏槽选用三级楔形掏槽,周边眼炮眼密集系数取0.89,底板眼呈双排梅花型布置,可使炮眼利用率提高到90.5％,巷道成型质量显著提高,每爆破循环节约用时1 h.%To improve the forming quality and construction efficiency of hard rock inclined roadway,taking the blasting construction of walkway rise in Taoyuan Coal Mine as the back-ground,the reasons for low use ratio of blast hole,serious back break of roadway and low con-struction efficiency were analyzed,and the blasting parameters was optimized by combining with theoretical calculation and previous construction experience. The results showed that the opti-mized blasting scheme with full section one-time blasting method,three-level wedge cut,inten-sive coefficient of periphery hole adopting 0.89 and double-row quincunx type distributed floor hole could increase the use ratio of blast hole to 90.5%. The roadway forming quality improved significantly and the time of each blasting cycle decreased to 1 h.
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