工程爆破

1997, (01) 9-13+17

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水不偶合装药爆破时的破岩特征
BLASTING FEATURES OF ROCK FRAGMENTATION WITH DE-COUPLING CHARGING WITH WATER

宗琦;
Zong Qi(Huainan Mining Institute, Anhui 232001)

摘要(Abstract):

根据水中爆炸冲击波理论和流体力学理论,分析探讨了炮孔水不偶合装药爆破时孔壁初始冲击压缩作用和由其引起的岩石破坏特征,以及这种装药结构条件下的炮孔准静压力和由其引起的炮孔周围岩石中的准静态应力场。结果表明,不偶合装药系数是影响水不偶合装药爆破作用的主要因素。
In light of theories on blasting shock wave in water and on hydromechanics, the blasting features of rock fragmentation and the quasi-static stress field near the hole are ana-lyzed in this paper. The result showed that coefficient of de-coupling charging is a main factor effecting blasting action.

关键词(KeyWords): 水不偶合装药;冲击波;准静态应力场
Water de-coupling charging Shock wave Quasi-static stress field

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作者(Author): 宗琦;
Zong Qi(Huainan Mining Institute, Anhui 232001)

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