Attenuation with distance of traffic-induced vibrations.

DOI NDLデジタルコレクション Web Site Web Site Web Site 被引用文献2件 参考文献10件

書誌事項

タイトル別名
  • Attenuation with Distance of Traffic In

この論文をさがす

抄録

The purpose of this study is to investigate the propagation characteristics of the traffic-induced vibrations and to make a prediction method of the attenuation with distance of the traffic-induced vibrations. To do this field tests were performed by using test trucks and ground vibrations were measured on the ground surface and in the ground at depths of 2 and 4m. Moreover the investigation of the real traffic-induced vibrations all over Japan was carried out and ground vibrations were measured as far as 20m from the center of the outside lane.Conclusions obtained from the investigations are following : i) The Rayleigh wave is dominant in the traffic-induced vibrations. ii) The vibration due to large truck (the mass is about 20Mg) has almost same frequency as small truck (the mass is about 10Mg). Frequency of the traffic-induced vibrations is mainly determined by ground soil conditions. iii) The higher the frequency of the ground vibration is, the larger the attenuation with distance is. One of reasons on this is that soils have rate-independent damping characteristics. iv) The larger the acceleration at reference point (at a distance of 5m from the center of the outside lane) is, the larger the attenuation with distance is. One of reasons is that the propagation velocity and the damping ratio of soils depend on shear strain even in a very small strain region. v) In the condition that the acceleration at reference point is same, soft ground has smaller attenuation with distance than hard ground. vi) Quantitatively vibration level recuces 1-7 dB per double distance.

収録刊行物

被引用文献 (2)*注記

もっと見る

参考文献 (10)*注記

もっと見る

キーワード

詳細情報 詳細情報について

問題の指摘

ページトップへ