不整形地盤の波動伝播特性 : 油圧制御起振機による強制振動試験に関する研究(3)

概要

論文の詳細を見る
Propagation characteristics of harmonic waves by subsurface irregularities is studied experimentally with the detailed measurements of a surface ground motion generated by forced vibration of a reinforced concrete model footing placed on a subsurface irregular ground. Each of three different footings was excited in three kinds of directions to generate different patterns of wave propagation. We evaluated particle orbits, coherence function and phase information from the cross-power spectra between adjacent sites and constructed phase velocity dispersion curves to investigate wave propagation characteristics of subsurface irregular ground. It is shown that dispersion data measured on less irregular subsurface ground are in good agreement with the theoretical values.
社団法人日本建築学会の論文
1992-01-30