摘要
针对露井协采的采矿特点,本文以安太堡露矿为列,采用LS-DYNA数值模拟的方法,对爆破应力波的传播以及不同最大单响药量进行了模拟,分析了爆破应力波及装药量对边坡和巷道的影响,发现药量的增加会使节点振幅变大,且在台阶交界处容易产生应力集中。
In view of the characteristics of mining in the open field, this paper uses the LS-DYNA numerical simulation method to simulate the propagation of the blasting stress wave and the different maximum single pompling, and analyze the blasting Effects of Stress on Charge and Slope and Roadway,It is found that the increase in the dose increases the amplitude of the nodes and tends to produce stress concentration at the junction.
作者
闫晓宇
袁绍国
王振涛
YAN Xiao-yu;YUAN Shao-guo;WANG Zhen-tao(Inner Mongolia University of Science and Technology, Mining and Coal College,Baotou 014010,China)
出处
《世界有色金属》
2017年第18期227-227,229,共2页
World Nonferrous Metals
关键词
露井协采
爆破震动
边坡
巷道
open pit mining
blasting vibration
slope
roadway
