含铝炸药震源激发地震波的数值模拟

曾一鑫; 白春华; 陈健; 王仲琦

doi:10.11858/gywlxb.2013.06.012

含铝炸药震源激发地震波的数值模拟

doi: 10.11858/gywlxb.2013.06.012

北京理工大学爆炸科学与技术国家重点实验室，北京 100081

详细信息

通讯作者:
曾一鑫 E-mail:10902002@bit.edu.cn

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出版历程
- 收稿日期: 2012-01-11
- 修回日期: 2012-04-30
- 发布日期: 2013-12-15

Simulations of Seismic Waves Stimulated by Aluminized Explosive

State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing 100081, China

摘要

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0.7 kg含铝炸药在埋深1 m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。
- 震源 /
- Miller模型 /
- 地表垂向振动 /
- 下传地震波能量
Abstract: 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.
- aluminized explosives /
- miller model /
- surface vertical vibration /
- energy of seismic wave passed down

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参考文献(18)

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