衝撃振動の伝搬特性と溝によるしゃ断の測定 : 地盤モデルを用いた実験

概要

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This paper presents the experimental results on a propagation characteristics of elastic waves and vibration isolation effects of an open trench. First, elastic wave propagation in the gelatine gel and the reflection and diffraction phenomena of the waves by trench have been observed. Next, the surface wave propagation characteristics and vibration isolation effects of the trench have been measured using the elastic half-space model made of the chemical grout gel. The experimental results have been compared with the theoretical values of the stresses radiated from surface point source in the half-space. Some of the results obtained are as follows. Vibration isolation effect of the trench is affected by the values of the stress just below the bottom of the trench at the arrival of the waves. It is effective for vibration isolation to arrange a trench as its bottom exists on the direction that the stresses of the waves are smallest and also effective to set a trench as far as possible from the vibration source.
社団法人日本音響学会の論文
1984-09-01