自動車走行外乱による地盤の振動性状に関する研究 : 実測記録の分析と薄層法によるシミュレーション解析

概要

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In a study of the dynamic response of the soil due to a mobil, it is necessary to confirm the dynamic load excited by a mobil and the wave propagation in a soil. In order to clarify them, a large size of dump car was driven at midnight. The accelerations on the car, velocities on the surrounding ground surface and in the soil were recorded. The PS logging and the smoothness of road surface were also surveyed. The dynamic load induced by the moving car is simulated from the acceleration records on the car and the correspondence with the smoothness record of road surface is studied. On the soil response, the nonstationary response spectra, Tgr are evaluated. Motion product and the orbit are also examined to grasp the effect of surface waves. Finally, the complex envelope is evaluated in order to study the attenuation. From these results, it is clarified that the surface waves act an important role in the wave propagation in a soil. Finally, the simulation analysis using thin layer method is carried out in order to examine the effect of moving excited load.
一般社団法人日本建築学会の論文
1993-03-20