摘要
针对岩石装药孔要求,利用有限元仿真软件AN-SYS/AUTODYN对锥形装药、亚半球装药和K装药3种典型装药结构对岩石的侵彻过程进行了数值仿真研究,得到如下结论:亚半球装药可以形成较大的侵彻孔径,但需要增加侵深,较适用于低强度、低密度岩石;K装药可以形成较好的大深孔,但其对岩石的破坏程度较大,较适用于高强度、大密度岩石。利用实验对仿真结果进行了校核比较,结果表明仿真和实验结果符合较好,研究工作为满足岩石装药孔的装药结构设计要求提供了一条新的思路和途径。
Based on the requirements of rock hole,numerical simulations were made on the process of penetrating into rock with three typical shaped charges,including conical liner charge,semispherical liner charge and K charge.The results showed that semispherical liner charge could form big diameter with small penetration,which is suitable to rocks with lower density and strength,K charge could form big penetration with smaller diameter,but with little bigger damage degree of rock,which is suitable to rocks with high density and strength.The results of the numerical simulations were checked and compared with ones of tests.The results of the simulation conformed to the test results well.The research provides a new way of thinking and the new approach for the design of Charge Structure to satisfy a requirement of rock charge hole.
出处
《矿业研究与开发》
CAS
北大核心
2011年第3期89-93,共5页
Mining Research and Development
基金
国家部委基金62301060301
关键词
爆炸力学
聚能装药
数值仿真
K装药
岩石装药孔
Mechanics of explosion
Shaped charge
Numerical simulation
K charge
Rock Charge hole