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冰川冻土 ›› 1998, Vol. 20 ›› Issue (1): 60-63.

• 研究论文 • 上一篇    下一篇

冻土光面爆破参数模型试验研究

宗琦, 马芹永   

  1. 安徽淮南矿业学院, 淮南232001
  • 收稿日期:1997-04-17 出版日期:1998-02-25 发布日期:2012-04-26

Experimental Study on Paramenters of Frozen Soil Smooth Blasting

ZONG Qi, MA Qin-Yong   

  1. Huainan Mining Institute, Huainan City 232001
  • Received:1997-04-17 Online:1998-02-25 Published:2012-04-26

摘要: 以冻结砂土为原型进行冻土光面爆破参数的模型试验研究。结果表明,冻土中实施光面爆破是可行的;当炮孔直径35~50mm时,较为合理的光面爆破参数为:炮孔间距500~700mm,装药密集系数0.8~1.2;较为合理的光面爆破装药结构为径向空气间隙和轴向空气垫层不偶合装药。

关键词: 冻土, 光面爆破, 装药结构, 装药密集系数, 模型试验

Abstract: Model experiments on paramenters of frozen soil smooth blasting are conducted. The effect of model experiments shows that smooth blasting technology may be used in frozen soil blasting and that for hole diameter of 35~50 mm, more reasonable smooth blasting paramenters are coefficient of hole-spasing m=0.8~1.2 and hole interval E=500~700 mm,and more reasonable charge structure is air decoupling and air cushion charge.

Key words: frozen soil, smooth blasting, charge structure, coefficient of hole-spacing, model experiment

中图分类号: 

  • P642.14