A STUDY ON PROPAGATION PROPERTIES OF TRAFFIC VIBRATION FROM TUNNEL TO NEAR BUILDING

In order to predict the level of vibration and structure-borne sound of a building near the underground railway tracks, it is essential to investigate vibration propagation from the ground to the foundation of the building. Therefore, the authors proposed a simple prediction method of vibration propagation from the ground to pile-foundations based on the dynamic-substructure method, which was able to consider the soil-structure-interaction. In the method, input vibration to pile-foundations and response ratio of upper-structures with the dynamic-soil-spring were calculated. We predicted the vibration propagation from the tunnel to the buildings of three types, and confirmed that the predicted results were similar to the measurements.