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金属矿山 ›› 2007, Vol. 37 ›› Issue (09): 42-45.

• 采矿工程 • 上一篇    下一篇

岩体节理裂隙对巷道掘进爆破影响的研究与实践

谭海文1,吴仲雄1,马瑞军2   

  1. 1.广西大学;2.广西龙头山金矿
  • 出版日期:2007-09-17 发布日期:2012-03-01

Research on Effect of Rockmass Joints and Fissures on Blasting in Tunneling and Its Practice

Tan Haiwen1,Wu Zhongxiong1,Ma Ruijun2   

  1. 1.Guangxi University;2.Guangxi Longtoushan Gold Mine
  • Online:2007-09-17 Published:2012-03-01

摘要: 针对龙头山金矿巷道掘进爆破效率低、质量差的现象,分析了岩体中节理裂隙对巷道掘进爆破效果的影响。现场试验结果表明,采取合理的掏槽形式、优化爆破参数、确保炮眼质量等有效措施,可提高节理裂隙岩体中巷道掘进爆破效率和循环进尺,改善爆破质量,取得良好的经济效益。

关键词: 节理裂隙岩体, 巷道掘进, 掏槽形式, 爆破参数, 爆破效率

Abstract: In view of low blasting efficiency and poor quality in tunneling of Longtoushan Gold Mine, the effect of rockmass joints and fissures on tunneling blasting is analyzed. The on-site test results show that some effective measures such as reasonable cutting pattern, blasting parameter improvement, ensured blast-hole quality, etc. can hraise the blasting efficiency and advance per attack, improve the blasting quality and achieve good economic benefit in tunneling in jointed and fissured rockmass.

Key words: Jointed and fissured rockmass, Tunneling, Cutting pattern, Blasting parameters, Blasting efficiency