群杭基礎の非線形挙動に関する振動実験および解析研究 : 25本杭試験体の実験結果とシミュレーション解析

概要

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Vibration tests of a structure supported on 25-piles have been conducted at a large-scale mining site. Ground motions from large-scale blasting operations were used as excitation forces for vibration tests. The pile-supported structure was constructed in an excavated 4m-deep pit. The test pit was carefully backfilled with sand to create uniform test bed. Accelerations were measured at the structures, in the sand of the test pit and in the adjacent free field. Strains of piles were also measured. As the level of the input motions increased, response characteristics of the structure were remarkably changed by nonlinear soil around piles. This paper shows vibration tests results and its simulation analyses, and discusses nonlinear behaviors of structure supported on pile-groups.
社団法人日本建築学会の論文
2007-05-30