摘要
为了研究炸药水下爆破对海冰的破坏作用,文章运用有限元分析软件ANSYS/LS-DYNA建立水下冰凌爆破的二维数值仿真模型,考虑在相同爆距的情况下,对不同装药半径的水下冰凌爆破效果进行分析,研究其破坏规律,分别得出对海冰压力时程曲线图、海冰位移曲线图。结果表明,冰层破坏直径与冰层破坏后抬升高度整体与装药直径呈正相关,从冲击动力学角度上观察,在炸药膨胀产生的冲击波和气泡脉动的共同作用下对冰层整体的爆破效果较好,研究内容可以为岸冰爆破工程提供参考。
In order to study the damage effect of explosive underwater blasting on sea ice,this paper uses finite element analysis software ANSYS/LS-DYNA to establish a two-dimensional numerical simulation model of underwater ice blasting.Considering the same detonation distance,the effect of underwater ice blasting with different charge radii is analyzed and its damage rule is studied.The time-history curve of sea ice pressure and sea ice displacement curve are obtained respectively.The results show that the ice failure diameter and the lifting height after the ice failure are positively correlated with the charge diameter as a whole.From the perspective of shock dynamics,the combined effect of shock wave and bubble pulsation generated by explosive expansion is better on the whole ice blasting effect,and the research content can provide a reference for the shore ice blasting project.
作者
常恒瑞
孟强
张宇庭
张婷婷
CHANG Hengrui;MENG Qiang;ZHANG Yuting;ZHANG Tingting(School of Mining Engineering,University of Science and Technology Liaoning,Anshan 114051,China;Chengyuan Mining Development Co.,Ltd,Liaoyang 111299,China)
基金
2023年辽宁省中央引导地方科技发展资金第一批计划《港口海冰灾害快速安全应急排险系统关键技术攻关》(2023JH6/100400022)。
