An analytical solution for dynamic response of water barrier subjected to strong shock waves caused by an underwater explosion to dams

• Autorzy: Lu L. , Zou D. , Zhu Y. , Dong Y. , Zuo C. , Wu Y.

Identyfikatory

DOI

10.1515/pomr-2017-0072

• Języki publikacji: EN

Abstrakty

EN

Shock waves arriving at a dam site are close to plane waves when the center of an underwater explosion is far from the dam site. In general, the wave pressure is calculated with COLE empirical formula. The COLE formula is a negative exponential function with respect to time. In this paper, a new analytical solution algorithm is proposed, which does not require the use of step-by-step time integration. In Comparison with the step-by-step time integration, the proposed algorithm requires relatively less calculation and avoids high-frequency oscillation. Furthermore, the vertical upstream surface and the sloping upstream surface in two types of the dams are analyzed in this paper. The research results indicate that the analytical solution can be applied for a dam with a vertical upstream surface. However, because the upstream face of a dam is inclined, the analytical solution can be obtained only for dams that are at lower height. Whenever the height of a dam is higher, then no analytical solution can be obtained, and only the use of step-by-step time integration can obtain a solution.

Słowa kluczowe

EN

underwater explosion; shock wave; dam; analytical solution; dynamic response

• Wydawca: Gdańsk University of Technology, Faculty of Ocean Engineering & Ship Technology
• Czasopismo: Polish Maritime Research
• Rocznik: 2017
• Tom: S 2
• Strony: 111--117
• Opis fizyczny: Bibliogr. 18 poz., rys.

Twórcy

autor

Lu L.

• Faculty of Management Engineering Huaiyin Institute of Technology Huai’an Jiangsu, 223003 China, tel.: 0086+15161753545
• The State Key Laboratory of Coastal and Offshore Engineering, Dalian University of Technology, Dalian, 110623, China

autor

Zou D.

• The State Key Laboratory of Coastal and Offshore Engineering, Dalian University of Technology, Dalian, 110623, China

autor

Zhu Y.

• The State Key Laboratory of Coastal and Offshore Engineering, Dalian University of Technology, Dalian, 110623, China
• Faculty of Architecture and Civil Engineering, Huaiyin Institute of Technology, Huai’an 223001, China

autor

Dong Y.

• Faculty of Architecture and Civil Engineering, Huaiyin Institute of Technology, Huai’an 223001, China

autor

Zuo C.

• Faculty of Management Engineering, Huaiyin Institute of Technology, Huai’an 223003, China

autor

Wu Y.

• Faculty of Management Engineering, Huaiyin Institute of Technology, Huai’an 223003, China

Bibliografia

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• 2. Lu L, Li X, Zhou J. Protection Scheme for Concrete Gravity Dam Acting by Strong Underwater Shock Wave. Advanced Science Letters, Adv. Sci. Lett. Vol. 19, No. 1, pp. 238-243,2013.
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• 4. Lu L, Li X, Zhou J, et al. Numerical Simulation of Shock Response and Dynamic Fracture of a Concrete Dam Subjected to Impact Load. Earth Sciences Research Journal, vol.20, no.1,pp.1-6, 2016.
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• 15. C. C.Liang and Y. S. Tai. Shock responses of a surface ship subjected to noncontact underwater explosions. Ocean Engineering, vol.33, pp.5, pp.748-772, 2006.
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Uwagi

PL

Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2018).