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http://dx.doi.org/10.7843/kgs.2018.34.11.57

Verification of the Numerical Analysis on Caisson Quay Wall Behavior Under Seismic Loading Using Centrifuge Test  

Lee, Jin-Sun (Dept. of Civil and Environmental Eng., Wonkwang Univ.)
Park, Tae-Jung (Dept. of Civil and Environmental Eng., Wonkwang Univ.)
Lee, Moon-Gyo (Dept. of Civil and Environmental Eng., KAIST)
Kim, Dong-Soo (Dept. of Civil and Environmental Eng., KAIST)
Publication Information
Journal of the Korean Geotechnical Society / v.34, no.11, 2018 , pp. 57-70 More about this Journal
Abstract
In this study, verification of the nonlinear effective stress analysis is performed for introducing performance based earthquake resistance design of port and harbor structures. Seismic response of gravitational caisson quay wall in numerical analysis is compared directly with dynamic centrifuge test results in prototype scale. Inside of the rigid box, model of the gravitational quay wall is placed above the saturated sand layer which can show the increase of excess pore water pressure. The model represents caisson quay wall with a height of 10 m, width of 6 m under centrifugal acceleration of 60 g. The numerical model is made in the same dimension with the prototype scale of the test in two dimensional plane strain condition. Byrne's liquefaction model is adopted together with a nonlinear constitutive model. Interface element is used for sliding and tensional separation between quay wall and the adjacent soils. Verification results show good agreement for permanent displacement of the quay wall, horizontal acceleration at quay wall and soil layer, and excess pore water pressure increment beneath the quay wall foundation.
Keywords
Performance based design; Caisson quay wall; Centrifuge test; Numerical analysis; Liquefaction;
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