There are usually several problems during underground mine’s deep-hole blasting，such as large blasting back impact effect

non-uniform pieces and so on. In order to solve the problems in a southern lead-zinc mine

ANSYS/LS-DYNA is used to build numerical models for six kinds of hole’s charging structure with different charging quantities and different coupling coefficients based on parameters of blasting

explosives and rock in this mine. By analyzing information of Von Mises effective stress of blasting simulation

combining with mechanism of rock crack during blasting and Mises yield criterion

the best hole’s charging structure for deep-hole blasting is determined. In-situ test shows that

the optimized charging structure gets uniform blasting pieces; and back impact effect is controlled effectively. Problems of deep-hole lateral blasting in the mine is basically solved

so as to provide optimization of deep-hole blasting’s design with theoretical foundation and technical support.