Study on optimization of coal-rock mixing blasting based on FEM-SPH in Antaibao Open-pit Mine
FU Changyu
Abstract：In order to solve the problem of coal-rock mixing in the horizontal mining working face of Antaibao Open-pit Mine and verify the effectiveness of adjusting the hole diameter to improve the mixing effect of coal-rock blasting,a FEM-SPH-based simulation of coal-rock mixing blasting is carried out to compare and analyze the blasting effect under the condition of large hole diameter and small hole diameter,and the field blasting experiment of large and small hole diameter is carried out to verify the numerical simulation analysis results.The results show that the 165 mm small aperture scheme can effectively improve the blasting effect,reduce the mixing of coal and rock,and reduce the waste of blasting energy.
Keywords：horizontal mining working facecoal-rock mixingborehole blastingblasting simulationblasting experiment
Publication Date：2026-02-28
Online Publishing Date：2026-03-19(First online date of this platform, not the publication date of the document)
Pages：5( 72-76 )