Antiknock performance of an overflow dam subjected to contact explosion

Xu Qiang; Cao Yang; Chen Jianyun

doi:10.11883/1001-1455(2017)04-0677-08

Volume 37 Issue 4

May 2017

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Xu Qiang, Cao Yang, Chen Jianyun. Antiknock performance of an overflow dam subjected to contact explosion[J]. Explosion And Shock Waves, 2017, 37(4): 677-684. doi: 10.11883/1001-1455(2017)04-0677-08

Citation:

Xu Qiang, Cao Yang, Chen Jianyun. Antiknock performance of an overflow dam subjected to contact explosion[J]. Explosion And Shock Waves, 2017, 37(4): 677-684. doi: 10.11883/1001-1455(2017)04-0677-08

Xu Qiang, Cao Yang, Chen Jianyun. Antiknock performance of an overflow dam subjected to contact explosion[J]. Explosion And Shock Waves, 2017, 37(4): 677-684. doi: 10.11883/1001-1455(2017)04-0677-08

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Antiknock performance of an overflow dam subjected to contact explosion

doi: 10.11883/1001-1455(2017)04-0677-08

Xu Qiang^{1, 2},
Cao Yang^{1, 2},
Chen Jianyun^{1, 2
,
,}

1.
State Key Laboratory of Coastal and Offshore Engineering, Dalian University of Technology, Dalian 116024, Liaoning, China
2.
Institute of Earthquake Engineering, Faculty of Infrastructure Engineering, Dalian University of Technology, Dalian 116024, Liaoning, China

Received Date: 2015-12-25
Rev Recd Date: 2016-04-11
Publish Date: 2017-07-25

Abstract

Abstract

In this paper, against the background of the Huangdeng gravity dam and in consideration of the influence of the concrete's high strain rate, we established a fully-coupled numerical model for the dam-water-air-explosive using the Lagrange-Euler coupling method, and studied the antiknock performance of the overflow dam subjected to contact explosion loading. The dynamic response and damage of the overflow dam under the condition of withholding a full reservoir of water were compared with that under the condition of withholding an empty reservoir. Further, the response of the overflow dam subjected to underwater explosion at different explosion points was also investigated. The results show that, subjected to the same underwater explosion, the dynamic response and damage degree of the overflow dam withholding a full reservoir were significantly higher than those of the dam withholding an empty reservoir, and the weak points of the overflow dam were mainly located at the dam's overflow spillway on the top and the upstream slope. Therefore, it is concluded that research on the antiknock performance of an overflow dam subjected to underwater contact explosion should focus on the damage characteristics of the dam withholding a full reservoir.
- overflow dam,
- contact explosion,
- dynamic response,
- damage,
- antiknock performance

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References(25)

References

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