摘要
爆破飞石是爆破工程中最严重的爆破公害之一。采用FLAC3D动力分析程序分别建立了露天台阶单孔和双孔起爆仿真分析模型,开展了两种爆炸模式下爆破飞石的形成机理研究。结果表明,台阶边坡中上部是爆破飞石防护的重点区域;在不产生爆破冲孔的情况下,坡顶岩块发生抛掷的可能性较小,为矿山露天爆破飞石控制、实现矿山安全高效无(低)公害爆破开采提供了指导依据。
Fly -rock is one of the most serious disaster in blasting engineering. By means of FLAC3D dynamic analysis procedure, the simulation analysis models of a hole and two holes detonation in open pit mine were established. The formation mechanism of blas- ting fly - rock was carried out based on the two explosion modes described above. The result showed that the slope middle - upper part was the key area of fly - rock protection. The situation of rock throwing from the slope top was less likely to occur in the case of none blast punching. It provided a basic guidance for fly - rock controlling in open - air blasting mine, being helpful to the realization of the safe and efficient mine blasting without or low hazard .
出处
《铜业工程》
CAS
2014年第1期32-36,41,共6页
Copper Engineering
基金
国家"十一五"国家科技支撑计划项目(2006BAB02A03)
