Discussion on Ground Motion Parameters of JiYin Hydraulic Project

Article Preview

Abstract:

JiYin hydraulic project is located at the branch of Keliya River, Yutian county of Xinjiang. During the stage of its planning and design, a magnitude 7.3 earthquake occurred 43km away from the southeast of the dam. As the earthquake was in the southeastern part of Altyn Tagh Fault which was recognized in the past as a low seismicity segment, the cognition about seismic surroundings had changed totally. Based on comparison between the two seismic safety evaluations on JiYin before and after the earthquake, epistemic uncertainties in probabilistic seismic hazard assessments have a significant effect on final results. Therefore, in order to mitigate earthquake disasters of dams, combination of probabilistic and deterministic methods should be applied for evaluating seismic hazards when large dams are constructed in strong seismicity regions.

You might also be interested in these eBooks

Info:

Periodical:

Pages:

2151-2156

Citation:

Online since:

September 2013

Export:

Price:

Permissions CCC:

Permissions PLS:

Сopyright:

© 2013 Trans Tech Publications Ltd. All Rights Reserved

Share:

Citation:

* - Corresponding Author

[1] Li Zhengang. High Toe Wall Design of JiYin CFRD[J]. WarerPower. 2011. 37(10): 44-47 (in Chinese).

Google Scholar

[2] China Seismological Bureau Research Group on the Active Altyn Tagh Fault Zone. The Altyn Active Fault Zone[M]. Beijing: Seismological Press, 1992: 1-319 (in Chinese).

Google Scholar

[3] YIN Guanghua, JIANG Jingxiang, Wu Guodong. Tectonic Background of the Ms7. 4 Earthquake at Yutian on March 21, 2008[J]. Arid Land Geography. 2008. 31(4): 543-549; (in Chinese).

Google Scholar

[4] Fu Bihong, Zhang Songlin, Xie Xiaoping, et. al. Late Quaternary Tectono-geomorphic Features Along the Kangxiwar Fault, Alytn Tagh Fault System, Northern Tibet[J]. Quaternary Sciences. 2006. 26(2): 228-235. (in Chinese).

Google Scholar

[5] Ma Yuhu. Seismic Activity Background of Alytn Tagh Fault and Distribution Characters of Small Moderate Earthquakes along its Central Segment[J]. Recent Developments in World Seismology. 2012. 214-214. (in Chinese).

Google Scholar

[6] Chen Jianbo. Research on Seismotectonic Features in Xinjiang[D]. Lanzhou Institute of Seismology. 2008. 1-113. (in Chinese).

Google Scholar

[7] Chen Houqun, Hou SHunzai, Liang Aihu. Probabilistic Level of Fortification against Earthquake and Probabilistic Models of Seismic Actions for Hydraulic Projects[J]. Journal of Natural Disasters. 1993. 2(2): 91-98. (in Chinese).

Google Scholar

[8] GB 5073-2000 Specifications for Seismic Design of Hydraulic Structures[S]. Beijing. China Electric Power Press. 2001. (in Chinese).

Google Scholar

[9] Pan hua. Study on Uncertainties in the Parameters of PSHA[D]. Institute of Geophysics, CEA. 2000. 1-174. (in Chinese).

Google Scholar

[10] Wieland M. Seismic Design and Performance Criteria for Large Storage Dams, Proc. 15th World Conf. on Earthquake Engineering, Lisbon, Portugal, Sep. 24-28, (2012).

Google Scholar

[11] Mi Suting, Cheng Guoxing, Wu Hao, et al. Uncertainty Analysis of Latent Focal Region and Upper Magnitude Limit in Seismic Hazard Analysis[J]. Earthquake. 2004. 24(3): 87-94. (in Chinese).

Google Scholar

[12] John Douglas. Consistency of ground-motion predictions from the past four decades Bull Earthquake Eng (2010) 8: 1515–1526.

DOI: 10.1007/s10518-010-9195-5

Google Scholar

[13] Bommer JJ, Scherbaum F (2008) The use and misuse of logic trees in probabilistic seismic hazard analysis. Earthq Spectra 24(4): 997–1009.

DOI: 10.1193/1.2977755

Google Scholar

[14] GB 17741-2005. Evaluation of Seismic Safety for Engineering Sites[S]. 2005. (in Chinese).

Google Scholar

[15] Shi Yucheng. Seismic Fortification Research on Important Hydro-electric Structures Based on Scenario Earthquakes[D]. China Institute of Water Resources and Hydropower Research. 2007. 1-236. (in Chinese).

Google Scholar

[16] Chen Houqun. Seismic Fortification Levels for Hydraulic Structures[J]. China Water Resources. 2010. 20: 4-6. (in Chinese).

Google Scholar

[17] Hu Yuxian. A Tutorial of Seismic Safety Evaluation. Seismological Publishing. (in Chinese).

Google Scholar

[18] CHEN Houqun, LI Min, SHI Yuchen. Determination of Design Response Spectrum for Important Structures Based on Scenario Earthquake[J]. Journal of Hydraulic engineering. 2005. 36(12): 1399-1404. (in Chinese).

Google Scholar

[19] ICOLD. Selecting Seismic Parameters for Large Dams". Guidelines, Revision of Bulletin 72, Committee on Seismic Aspects of Dam Design, International Commission on Large Dams, Paris, (2010).

Google Scholar

[20] Wieland M. Seismic Design and Performance Criteria for Large Storage Dams[A], Proc. 15th World Conf. on Earthquake Engineering, Lisbon, Portugal, Sep. 24-28, (2012).

Google Scholar