The Research on Forced Roof Caving Technology with Deep Hole Blasting Applied to Thick Quartz Sandstone Anticline Roof in Coal Seam
Fu Jugen
Huang Wenyao
Yang Hao
Abstract：Deep hole blasting of forced caving is the most effective to solve the problem of hard thick coal seam roof. For the 121109 working face in coal seam occurrence condition, this paper introduces the mechanism of forced roof caving with deep hole blasting, the design of blasting parameters, blasting process and the auxiliary measures to prevent gas gathering at the top of the roof. It has reference value to similar projects.
Keywords：coal seamquartz sandstone roofdeep hole blastingforced roof caving
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( 8-10 )