Journal Home Online First Current Issue Archive For Authors Journal Information 中文版

Strategic Study of CAE >> 2006, Volume 8, Issue 3

The Regularity of Time of Arrival in 90° Bend Tunnel for Shock Wave due to Explosions From High Explosive Charges

1. Department of Modem Mechanics , University of Science and Technology of China , Hefei 230027 , China

2. Luoyang Hydraulic Engineering Technology Institute , Luoyang , Henan 471023 , China

Received: 2005-05-25 Revised: 2005-06-19 Available online: 2006-03-20

Next Previous

Abstract

The propagating regularity and its influencing matter of shock wave in a 90° bend tunnel were studied experimentally. On the basis of dimensional analysis, a simplified engineering model was built. Through collecting data gained from 4 experiments, a formula was proposed which can compute time of arrival in a 90° bend tunnel due to explosions from high explosive charges. This formula can also be used to compute velocity of shock in the 90° bend tunnel.

Figures

图1

图10

图11

图12

图2

图3

图4

图5

图6

图7

图8

图9

References

[ 1 ] Charles R W.In tunnel airblast engineering model forinternal and external detonations[A].Proceedings of the8th International Symposium on Interaction of the Effects ofMunnitions With Structures[C].McLean Virginia, 1997.195~208

[ 2 ] Lunderman C, Ohrt A P.Small scale experiment of intunnel airblast from external and internal detonations[A].Proceedings of the 8th International Symposium onInteraction of the Effects of Munnitions with Structures[C].McLean Virginia, 1997.209~221

[ 3 ] 随树元, 王树山.终点效应学[M].北京:国防工业出版社, 2000.285~289 link1

[ 4 ] 庞伟宾, 何翔, 李茂生, 等.空气冲击波在坑道内走时规律的实验研究[J].爆炸与冲击, 2003, 23 (6) :573~576 link1

[ 5 ] 李翼祺.爆炸力学[M].北京:科学出版社, 1992.156~162 link1

Related Research