凹陷露天铁矿下台阶路堑爆破实例

作者针对经山寺矿山路堑爆破工程,介绍了采用直孔拉槽,加大超深台阶以及在硬度较大的岩石中采用辅助斜孔的台阶爆破施工技术,相对于单纯的直孔拉槽爆破,爆破震动减小,更经济,其成功经验对类似工程具有参考价值。

The Practice of Down Bench Cutting Blasting of the Depressed Surface Iron Mine

Pointing at the mine and cutting blasting work of Jingshan Temple, the author introduces the construction technique of bench blasting, by means of adopting bum cut, Increasing super-deep bench and using assistant inclined-hole in the hard rock, the technique have an advantage over the pure bum cut blasting for its reducing blasting concussion and more economic, and its successful experience provides the reference for the similar blasting engineering.