装药位置对爆破破冰效果影响的数值分析Numerical Analysis of Effect of Different Charge Position on Ice Blasting
张忠和,梁向前,徐溦,吴瑞波
摘要(Abstract)：
采用数值模拟的方法研究了炸药装药位置对水下冰凌爆破效果的影响。以黄河防凌破冰试验为基础,采用有限元软件LS-DYNA模拟了炸药在水下不同深度处的爆破破冰效果。模拟结果表明在深度大于4.5 m的水中,药包位于冰下约1.5 m处破冰效果较好;当水深较小时药包的最佳深度相应增加。通过对水压力变化分析,揭示装药深度和水深对爆破效果影响的物理机制。研究结果为防凌破冰设备的研制提供了理论依据。
关键词(KeyWords)： 冰凌爆破;装药位置;水深;破冰效果;数值模拟
基金项目(Foundation): “十二五”国家科技支撑计划(2011BAK09B02);; 国家自然科学基金重点项目(51339006);; 中国水利水电科学研究院科研专项(岩集1308)
作者(Author): 张忠和,梁向前,徐溦,吴瑞波
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