动载作用下磁铁矿石破坏特性实验研究

李占金1，2，郝家旺1，2，甘德清1，2，刘志义1，2

An experimental study on the failure characteristics of magnetite ore based on dynamic load

LI Zhanjin1, HAO Jiawang1, 2, GAN Deqing1, LIU Zhiyi1