Study on α Cutting Blasting and Heading Technology with Ultra-DeepHoles in Hard Rock
JIANG Ren-yi
XU Hong-liang
ZHANG Ming-feng
Abstract：According to the mining and cutting engineering features of the metal mine and the practices on a full completed sinking of an ore pass,an analysis study was conducted on the blasting and heading technology with ultra-deep holes in the hard rock and an α cutting method with ultra-deep holes in the hard rock was provided.An α cutting method was applied to the quantization conducted on the interrelation between the cutting,reaming and the cross section of the heading roadway.An α cutting method was simple and definite,could be favorable to the site layout and construction and could be applied to the heading blasting engineering with ultra-deep holes in hard rock.
Keywords：metal minehard rockultra-deep holeα cutting methodheading blasting
Publication Date：2017-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：4( 32-34,4 )