Accounting for the influence of the free surface on the vibration response of underground railway tunnels: a new iterative method

Tisal Edirisinghe, James P. Talbot & Mohammed Farouk Mohammed Hussein
This paper presents a new method for calculating the ground-borne vibration from shallow underground railways. The method is based on an iterative wave-scattering approach, which decouples the problem into two sub-systems: (1) a tunnel embedded in a full-space and (2) a half-space domain for the soil alone. The Pipe-in-Pipe (PiP) model is first used to find the soil response remote from the tunnel, in the absence of a free surface. The reflected wave-field approaching the...
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