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有限長周期杭が配置された地盤の表面波分散解析
有限長周期杭が配置された地盤の表面波分散解析
Dispersion Analysis of Surface Elastic Waves for Ground with Finite-Length Periodic Piles
古里, 駿
阿部, 和久
紅露, 一寛
QUINAY, Pher Errol Balde
Copyright(C)2013 公益社団法人土木学会
本文データは学協会の許諾に基づきJ-Stageから複製したものである
band structure
vibration barrier
Rayleigh waves
pile length
A dispersion analysis method is developed for surface elastic waves in a semi-infinite ground, in which a periodic array of piles with finite length is arranged. A displacement solution is given by coupling of the finite element discretization and the plane wave description. In order to consider the finite piles, a semiinfinite unit cell is decomposed into two sub-domains, i.e., the upper layer including the pile and the lower semi-infinite region. The comprehensive solution is then constructed by imposing the continuity conditions on the interface between both domains. The dispersion analysis is reduced to a search for zeros of the determinant of solving matrix in an irreducible sub-region of the first Brillouin zone. Through numerical examples, the influence of the pile length on the band structure is discussed.
土木学会
2013-08
jpn
journal article
http://hdl.handle.net/10191/31906
https://niigata-u.repo.nii.ac.jp/records/3540
info:doi/10.2208/jscejam.69.I_799
https://www.jstage.jst.go.jp/article/jscejam/69/2/69_I_799/_pdf
AA12373113
土木学会論文集A2(応用力学)
土木学会論文集A2(応用力学)
69
2
I_799
I_807
https://niigata-u.repo.nii.ac.jp/record/3540/files/69_2_799-807.pdf
application/pdf
295.9 kB
2019-07-30