Analysis the Influence of Layered Sediment on Seismic Responses of Concrete Dam

Abstract:

Studied a certain thickness layered sediment of different distribution form for the seismic response of a concrete dam, Based on pressure wave equation of saturated porous fluid-solid medium, the layers of sediment thickness is different, divided the layered sediment into three different distribution forms, the physical parameters of each layered sediment divided into the same and the different two situations, prediction the seismic response magnitude of concrete dam. Application of the method of a typical example shows the influence on the same physical properties different forms of response to the seismic response was not significant, the distribution of different forms of seismic response shows a significant effected. solid medium, the layers of sediment thickness is different, divided the layered sediment into three different distribution forms, the physical parameters of each layered sediment divided into the same and the different two situations, prediction the seismic response magnitude of concrete dam. Application of the method of a typical example shows the influence on the same physical properties different forms of response to the seismic response was not significant, the distribution of different forms of seismic response shows a significant effected.

• Periodical: Advanced Materials Research (Volumes 838-841)
• Pages: 1733-1737
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.838-841.1733
• Online since: November 2013
• Authors: Chang Xin Xiong*, Yi Zhi Yan
• Keywords: Hydraulic Structure, Layered Sediment Distribution Form, Saturated Porous Fluid-Solid Medium, Seismic Response

References

[1] Bougacha S，Tassoulas J L. Seismic response of gravity dams I：Modeling of sediment [J]. Journal of Engineering Mechanics，ASCE，1991，117（7）1826 - 1837.

DOI: 10.1061/(asce)0733-9399(1991)117:8(1826)

[2] Bougacha S，Tassoulas J L. Seismic response of gravity dams II： Effects of sediment [J]. Journal of Engineering Mechanics，ASCE，1991，117（7）1839 - 1850.

DOI: 10.1061/(asce)0733-9399(1991)117:8(1839)

[3] Xiuli Du，Jinting Wang，TinKan Huang. Effect of sediment on the dynamic pressure of water and sediment on dams [J]. Chinese Science Bulletin，2001, 46(6)：521 - 524.

DOI: 10.1007/bf03187273

[4] Jinting Wang, Xiuli Du, Chuhan Zhang. Explicit finite element model for dynamic analysis of dam-reservoir-sediment-foundation system[J]. Tsinghua Univ (Sci & Tech), 2003, 43（8）: 1112~1115. (In Chinese).

[5] Yizhi Yan, Liaojun Zhang, Huashu Yang, Zhimin Su, Liang Wu. Analysis of porous medium sediments on seismic response of concrete dam[J]. Water Resources and Power, Vol. 30 No. 1, Jan. 2012. (In Chinese).

[6] Xiuli Du, Mi Zhao. Analysis method for seismic response of arch dams in time domain based on viscous—spring artificial boundary condition[J]. SHUILI XUEBAO, 2006, 37(9): 1063-1069. (In Chinese).