Author(s)

C.J.C. Jones, A. Wang & T.M. Dawn

Abstract

A cross-sectional model for the propagation of vibration from a bored tunnel to the ground surface is described. This incorporates Finite Elements (FE) to model the tunnel and adjacent ground, and infinite elements to model the wave propagation away from this region. The use of the model in practice is discussed with some examples which show how the model can be used in the design of an underground railway. 1 Introduction Vibration caused by trains running in tunnels propagates to buildings above, where, if the level is sufficient, it may be perceived in one of two ways. Vibration with frequency components in the low audible range of about 30Hz to 200Hz may be heard as a rumbling noise radiated from the walls of the room [1]. More unusually, frequency components below 30Hz may be strong enough to be felt. A model of t

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