AN ESTIMATING METHOD FORA PHASE VELOCITY OF RAYLEIGH WAVE IN MULTI-LAYERED MEDIA
Publish Year: 1378
نوع سند: مقاله کنفرانسی
زبان: English
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شناسه ملی سند علمی:
SEE03_190
تاریخ نمایه سازی: 20 مهر 1400
Abstract:
The ground strain induced by Rayleigh wave may play a key role in designing a long structure, such as a pipeline. The strain is a function of ground velocity motion and phase velocity. However, it is difficult to calculate the phase velocity of Rayleigh wave without a high performance computer. Therefore, we propose a simple estimation method for a phase velocity of fundamental-mode Rayleigh wave in multi-layered media. This method uses only S-wave velocity and thickness of each layer and gives an approximate phase velocity at any period. Furthermore, this method can be applied to direct estimation for the S-wave velocity structure from observed phase velocities of Rayleigh wave.
Authors
KATSUAKI KONN۰
Department of Civil Engineering, Shibaura Institute of Technology, ۳-۹-۱۴, Shibaura, Minato-ku, Tokyo Japan
SHUNICHI KATAOKA
Institute of Technology, Shimizu Corporation ۳-۴-۱۷, Echujima; Koto-ku, Tokyo ۱۳۵-۸۵۳۰ Japan