岩土力学2012，Vol.33Issue(6)：1883-1888,6.
深孔爆破装药结构优选数值分析方法及其应用
Numerical analysis method for optimizing charging structure of deep-hole blasting and its application
摘要
Abstract
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.关键词
采矿工程/深孔爆破/装药结构/ANSYN/LS-DYNA/爆破块度/后冲作用Key words
mining engineering/ deep-hole blasting/ charging structure/ ANSYN/LS-DYNA/ pieces of blasting/ back impact effect分类
矿业与冶金引用本文复制引用
刘优平,龚敏,黄刚海..深孔爆破装药结构优选数值分析方法及其应用[J].岩土力学,2012,33(6):1883-1888,6.基金项目
国家自然科学基金(No.50969007) （No.50969007）
江西省教育厅青年科学基金课题(No.GJJ10272). （No.GJJ10272）
