节理对爆炸波传播影响的数值研究

被引:35
作者
张秀丽 [1 ]
焦玉勇 [1 ]
刘泉声 [1 ]
刘宝莉 [2 ]
机构
[1] 中国科学院武汉岩土力学研究所岩土力学与工程国家重点实验室
[2] 科学出版社
基金
教育部留学回国人员科研启动基金;
关键词
DDA; 爆炸波; 节理岩体; 无反射边界;
D O I
10.16285/j.rsm.2008.03.001
中图分类号
O382 [爆震波的传播];
学科分类号
摘要
采用加入无反射边界条件的DDA程序,研究了节理面对应力波传播的影响。结果表明,节理面能阻碍波的传播,有利于波的衰减,节理面越多,波的反射越强,而波的透射越弱。模拟了一个现场爆炸试验,研究爆炸产生的应力波在节理岩体中传播、衰减的规律,模拟结果与现场试验结果比较吻合。研究表明,DDA方法可以模拟节理面对应力波传播的阻碍作用,用它来模拟爆炸波在节理岩体中的传播是适用的。
引用
收藏
页码:717 / 721
页数:5
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