열차하중에 의한 인접 지반의 진동 감쇠 특성 분석

Analysis of Vibration Damping Characteristics of the Ground Nearby Railroad Induced by Train Loading

In this study, the vibration were measured to analyze the characteristics of propagating vibration on the railroad, the roadbed and the ground nearby railroad induced by traveling trains. About Fifty cases of passing trains were measured with different types and speed, changing the source of loading and the points of measurement. The measured signals were analyzed in time domain and frequency domain. As a result of analysis, sudden reduction of energy was shown in near part from vibration source and the contents of high frequency was reduced more rapidly as the distance was increased. The amplitude of vibration and the contents of frequency did not make big differences in spite of different types of train which is recently used in Korea.