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Evaluation of the applicability of the surface wave method to rock fill dams  

Kim, Jong-Tae (Department of Civil and Environmental Engineering, KAIST)
Kim, Dong-Soo (Department of Civil and Environmental Engineering, KAIST)
Park, Heon-Joon (Department of Civil and Environmental Engineering, KAIST)
Bang, Eun-Seok (Geotechnical Engineering Division, KIGAM)
Kim, Sung-Woo (Korea Railroad Corporation)
Publication Information
Geophysics and Geophysical Exploration / v.13, no.1, 2010 , pp. 9-23 More about this Journal
Abstract
In current design practice, the shear wave velocity (Vs) of the core and rock-fill zone of a dam, one of the characteristics essential for seismic response design, is seldom determined by field tests. This is because the borehole seismic method is often restricted in application, due to stabilisation activities and concern for the security of the dam structure, and surface wave methods are limited by unfavourable in-situ site conditions. Consequently, seismic response design for a dam may be performed using Vs values that are assumed, or empirically determined. To estimate Vs for the core and rock-fill zone, and to find a reliable method for measuring Vs, seismic surface wave methods have been applied on the crest and sloping surface of the existing 'M' dam. Numerical analysis was also performed to verify the applicability of the surface wave method to a rock-fill dam. Through this numerical analysis and comparison with other test results, the applicability of the surface wave method to rock-fill dams was verified.
Keywords
core zone; rock fill dam; rock-fill zone; surface wave method; Vs profile;
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