Propagation properties of train-induced vibration from tunnels

Abstract

If a tunnel is to be constructed in an urban area, it is often necessary to predict the vibration and structure-borne sound levels in nearby buildings. Establishing a method for this purpose necessitated a detailed investigation of the propagation properties of train-induced vibration from tunnels to the ground surface. Therefore, we measured the vibration levels both on and under the ground surface, as well as that of a tunnel structure located at the same site. The results of the measurements were compared with those from numerical analysis to confirm the adequacy of the analysis method.