工程爆破

2007, (01) 24-27

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柱状药包岩石中爆炸的数值模拟
NUMERICAL SIMULATION OF EXPLOSION WITH CYLINDER CHARGE IN ROCK

顾宏伟;赵燕明;金文;
GU Hong-wei,ZHAO Yan-ming,JIN Wen(Dept.of Architecture & Civil Engineering,LEU,Chongqing 400041,China)

摘要(Abstract):

利用ANSYS/LS-DYNA3D对柱状药包在半无限岩石介质中爆炸情况进行了数值模拟,对柱状药包的爆炸在岩石内产生的应力变化进行了分析。给出了岩石弹性区内一点的应力变化时程曲线;并借助球形装药的经验公式对柱状装药的情况进行了分析比较,结果表明,应力波的峰值基本一致。该时程曲线可以用于多孔爆破计算。
Using ANSYS/LS-DYNA3D the paper stimulated numerically the explosion of cylinder char-ges in semi-infinite rock and analyzed the resulting change in stress across the rock.This resulted in giving the time history of stress of one point in elastic areas.The analysis comparison of the cylinder charges were carried out with empirical formula of sphere charges,showing that the peak values from the empirical for-mula of sphere charges were consistent with the cylinder charges.This result suggested that the time histo-ry curve of stress can be used in the calculation of multi-bores’explosion.

关键词(KeyWords): 应力时程曲线;柱状装药;数值模拟;多物质流固耦合
Time history curve of stress;Cylinder charges;Numerical simulation;Multi-material cou-pling of liquid and solid

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作者(Authors): 顾宏伟;赵燕明;金文;
GU Hong-wei,ZHAO Yan-ming,JIN Wen(Dept.of Architecture & Civil Engineering,LEU,Chongqing 400041,China)

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