물 자연 그리고 사람 - 물로 더 행복한 세상을 만들어가겠습니다.
HOME성과논문실적

논문실적

Safety evaluation of cored rockfill dams under high seismicity using dynamic centrifuge modeling 게시글의 제목, 학술지명, 저자, 발행일, 작성내용을 보여줌
Safety evaluation of cored rockfill dams under high seismicity using dynamic centrifuge modeling
학술지명 Soil Dynamics and Earthquake Engineering 저자 김남룡,박동순
발표일 2017-03-17

Dynamic centrifuge modeling was performed for inclined-core rockfill dams under high seismicity to assess their seismic safety and characterize the dynamic response of embankments. Latest techniques including two stage generalized scaling, shell stiffness matching, and single target g-level shaking were adopted. The effect of rockfill material degradation on the seismic response was investigated. All the inclined-core rockfill dam models indicated that exceptionally strong shaking (0.7?1.0g) does not endanger structural safety although the less competent shell models undergo comparable deformation. Measured data indicated that a counterbalancing effect influences the seismic response of dam models: increased damping from shear strains (material nonlinearity) and amplification from material nhomogeneity. An irregular stiff foundation is believed to affect the attenuation characteristics of motion. The study results/data will ontribute to the research of advanced physical modeling of large embankments under seismic areas and help to validate the procedures and results of numerical modeling.

목록