Discussion on Blasting Excavation in Hard Rock Roadway of Small Cross Section
Xu Haifeng
Abstract：In this paper construction experience on blasting excavation in hard rock roadway of small cross section was introduced. Through analysis and comparison of field trials,mixed cut method of vertical wedge cut and center undercutting were used to improve the utilization and quantities of explosives,which are useful for blasting excavation in hard rock roadway of small cross section.
Keywords：small cross sectionhard rock roadwayslotting modeblasting effect
Publication Date：2015-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：3( 23-25 )