DOI: 10.11799/ce201801012
Application of deep-hole presplitting blasting technology in forced roof caving in hard complete roof deep shaft
ZHANG Dong-hua
TIAN Ling-tao
Abstract：To solve the intense initial weighting interval of Chahasu Mine fully-mechanized coal face,eliminate hidden danger,deep hole presplitting blasting technology was applied in 31307 full mechanized coal face after the theoretical calculation,field test method.The analysis of ground pressure showed that the initial weighting interval of roof was 41.2m,the roof weighting interval and weighting strength decreased significantly compared with the previous two working face,which had less influence on hydraulic support and avoided the goaf hurricane risk factors and ensured the safe production of the working face.
Keywords：mining engineeringdeep borehole blastingdeep wellforced roof cavingcomplete roof
Publication Date：2018-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：3( 42-44 )