Shock wave loads on the blast door in straight tunnel

Zhang Yadong; A Shuailei; Zou Bin; Yu Wenhua

doi:10.11883/1001-1455(2017)06-1057-08

Volume 37 Issue 6

Sep. 2017

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Zhang Yadong, A Shuailei, Zou Bin, Yu Wenhua. Shock wave loads on the blast door in straight tunnel[J]. Explosion And Shock Waves, 2017, 37(6): 1057-1064. doi: 10.11883/1001-1455(2017)06-1057-08

Citation:

Zhang Yadong, A Shuailei, Zou Bin, Yu Wenhua. Shock wave loads on the blast door in straight tunnel[J]. Explosion And Shock Waves, 2017, 37(6): 1057-1064. doi: 10.11883/1001-1455(2017)06-1057-08

Zhang Yadong, A Shuailei, Zou Bin, Yu Wenhua. Shock wave loads on the blast door in straight tunnel[J]. Explosion And Shock Waves, 2017, 37(6): 1057-1064. doi: 10.11883/1001-1455(2017)06-1057-08

Citation:

Zhang Yadong, A Shuailei, Zou Bin, Yu Wenhua. Shock wave loads on the blast door in straight tunnel[J]. Explosion And Shock Waves, 2017, 37(6): 1057-1064. doi: 10.11883/1001-1455(2017)06-1057-08

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Shock wave loads on the blast door in straight tunnel

doi: 10.11883/1001-1455(2017)06-1057-08

1.
College of Defense Engineering, PLA University of Science & Technology, Nanjing 210007, Jiangsu, China
2.
66469 Troops of PLA, Beijing 100042, China

Received Date: 2016-04-12
Rev Recd Date: 2016-06-07
Publish Date: 2017-11-25

Abstract

Abstract

In order to improve the design and safety assessment of the reliability of blast-resistant structures, we studied the simplified calculation of the shock wave loads caused by HE explosions in straight tunnel based on the theoretical calculation and numerical simulation. Firstly, the differences among existing calculation methods of in-tunnel shock wave loads and their results were evaluated quantitatively in detail and the effects of such differences on structure responses were discussed. Then the design loads on the blast door in a tunnel was studied based on the model test and numerical analysis. The results show that it is important to take into account the coupling effects of the structure response when developing simplified calculation methods for in-tunnel explosion shock wave loads. The existing simplified methods generally disregard such effects and differ from one another significantly, which leads to much more uncertainty in both design and assessment. For close range explosion, the design loads on the door can be taken from pressure at the point on the midline and 1/4 door-width away from the door-side, or from the average pressure on the door, which is reasonably acceptable in a wide range of structure frequencies. The present work can provide a reliable method for protection design of in-tunnel structures.
- tunnel,
- shock wave loads,
- blast door,
- dynamic response

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References(13)

References

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