Technology Research on Crossheading Deep-hole Pre-splitting Blasting Hard Dirt Band
Abstract：Aiming at the situation that 16# coal seam contains iron sulfide hard band in Geting coal mine of Zibo Mining Group Co.,Ltd,based on the analysis of deep-hole pre-splitting theory,the paper proposed the materials and processes of deep-hole pre-splitting blasting and introduced the parameters of borehole spacing,borehole depth,charge amount.
Keywords：deep-hole pre-splitting blastinghard bandGeting coal mine
Publication Date：2012-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：3( 55-57 )