Numerical Simulation of Crack Development in Briquettes
QI Liming
ZHANG Xukun
WANG Guoxi
XU Yong
Abstract：In this paper, the simulation of coal seam drilling is carried out with briquette and grouting is carried out in the borehole. After the slurry is solidified, the briquettes are peeled off, and the cracks around the borehole are developed. The numerical simulation of the stress changes around the borehole is carried out by the FLAC3D numerical simulation software, and the development and distribution of the cracks around the borehole are analyzed. The results show that through the analysis of the stress changes around the borehole, it is found that the trend of stress changes around the borehole during drilling is usually shown as the trend of " decreasing first and then increasing", and the number of cracks around the borehole shows a trend of " increasing first and then decreasing" in the borehole.
Keywords：distribution of fissuresFLAC3Dstudy of simulation
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：4( 16-18,35 )