Analysis of Porous Media Sediments on Seismic Response of Concrete Dams

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Abstract:

To solve the problem of sediments on seismic response of concrete dams, pressure wave formula of saturated porous fluid-solid two-phase medium was derived from the Bait’s consolidation theory, and was determined the seismic response magnitude of sediment on concrete dam. The method was applied to analyze the influence of sediments thickness and permeability on hydrodynamic pressures. Finally, a typical example is analyzed. The result shows sediments are able to decrease hydrodynamic pressures.

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Periodical:

Advanced Materials Research (Volumes 631-632)

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576-583

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January 2013

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© 2013 Trans Tech Publications Ltd. All Rights Reserved

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[1] Fenves G, Chopra A K. Effects of reservoir bottom absorption and dam-water-foundation rock interaction on frequency response functions for concrete gravity dams [J]. Earthquake Engineering and Structural Dynamics, 1984, 13(1): 13-31.

DOI: 10.1002/eqe.4290130104

Google Scholar

[2] Cheng A H D . Effect of sediment on earthquake-induced reservoir hydrodynamic response[J]. Journal of Engineering Mechanics, ASCE, 1986, 112(7): 654一665.

DOI: 10.1061/(asce)0733-9399(1986)112:7(654)

Google Scholar

[3] Dominguez J , Gallego R , Japon B R . Effects of porous sediments on seismic response of concrete gravity dams[J]. Journal of Engineering Mechanics, ASCE, 1997, 123(4): 302一311.

DOI: 10.1061/(asce)0733-9399(1997)123:4(302)

Google Scholar

[4] Zhang Chuhan, Yan Chengda, Wang Guanglun. Numerical simulation of reservoir sediment and effects on hydrodynamic response of arch dams[J]. Earthquake Engineering and Structure Dynamics, 2001, 30: 1817一1837. (in Chinese).

DOI: 10.1002/eqe.96

Google Scholar

[5] Chen B F, Hung T K . Hydrodynamic pressure of water and sediment on rigid dam [J]. Journal of Engineering Mechanics, ASCE, 1993, 119 (7): 1411一1433.

DOI: 10.1061/(asce)0733-9399(1993)119:7(1411)

Google Scholar

[6] Zhao cheng-gang, Li wei-hua, Wang jin-ting etc. An explicit finite element method for dynamic analysis in three-medium coupling system and its application[J]. Asta seismologica sinica, 2003, 25(3): 262-271. (in Chinese).

DOI: 10.1007/s11589-003-0031-8

Google Scholar

[7] Du xiu-li, Wang jin-ting. Analysis method for seismic response of arch dam-compressible water-foundation systems[J]. Journal of hydrodynamic engineering, 2002, 6: 83-90. (in Chinese).

Google Scholar

[8] Wang jin-ting, Tang qing, Du xiu-li. Analysis of the saturated sediment effect on the seismic response of high arch dams[J]. Journal of hydroelectric engineering, 2006, 25(2): 11-15. (in Chinese).

Google Scholar

[9] Atkin RJ, Craine RE. Continuum theory of mixture: application [J]. J Inst Maths Appls, 1976, 17: 153一207.

Google Scholar

[10] Chen BF, Hung TK. Dynamic pressure of water and sediment on rigid dam[J]. J Engrg Mech 1993, 119(7): 1411一1433.

DOI: 10.1061/(asce)0733-9399(1993)119:7(1411)

Google Scholar