摘要
为了研究含铝炸药震源激发地震波能量的传播规律,对药量为0.7kg含铝炸药在埋深1m的砂土介质中进行爆炸实验,并基于AutoDyn商业软件引入高能炸药的Miller能量释放模型,对含铝炸药震源在土中的爆炸过程进行数值计算。模拟研究表明,地表垂向振动速度历程的模拟结果与实验结果吻合较好,说明JWL-Miller能量释放模型能较好地反映含铝炸药在土中的爆轰过程。模拟研究还表明,震源激发的下传地震波能量密度随深度的增加呈指数衰减规律,含铝炸药激发的下传地震波总能量为等药量TNT的1.34倍。
In order to study the propagation of seismic waves stimulated by aluminized explosives, the commercial software--AutoDyn was used,in combination with Miller energy release model, to simulate the explosion in the sand. The results of simulation agreed well with the experiment-0.7 kg aluminized explosive aluminized explosive was buried with a depth of 1 m in the sand, and its root mean square （RMS） amplitude of surface seismic waves was 1.23 times more than TNT;while the seismic energy density of waves passed down diminished exponentially with the depth, and seismic energy of Aluminized explosive passed down was 1.34 times more than TNT.
出处
《高压物理学报》
CAS
CSCD
北大核心
2013年第6期872-876,共5页
Chinese Journal of High Pressure Physics
基金
国家重大专项(2011ZX05006-002)
关键词
震源
Miller模型
地表垂向振动
下传地震波能量
aluminized explosives
miller model
surface vertical vibration
energy of seismic wavepassed down
