DOI: 10.11799/ce201804018
Study on rock-burst prevention with horizontal section top coal caving in steep-inclined and thick coal seam
FEI Ju-Yun
ZHENG Chao
Abstract：In order to reveal the mechanism of the rock burst with horizontal section top coal caving in the steeply inclined thick coal seam, the geological conditions and mining conditions of the mine are taken as the object of the 5521-21 working face of Yaojie No.3 Mine. Based on the impulse power source, it is found that the superposition effect of static and dynamic load is the core of 5521-21 working face. The prevention and control measures of coal body pressure relief blasting, floor coal pressure relief blasting, coal body large diameter drilling pressure relief and roof deep hole pre-splitting blasting are carried out, and good results are obtained through inspection.
Keywords：steep and extra-thick coal seamhorizontal sectionrock burstStatic and dynamic loadpressure relief blasting
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：5( 66-69,74 )