Abstract

PEREZ-ROCHA, Luis Eduardo  and  AVILES, Javier. Seismic design criteria of tunnels. Tecnol. cienc. agua [online]. 2014, vol.5, n.1, pp.57-70. ISSN 2007-2422.

A revision and adaptation of the seismic design criteria established in the practice for straight tunnels of circular shape is presented. Two methods of analysis are considered: the free-field deformation method and the soil-structure-interaction method. The axial, flexural and ovaling deformations caused by the passage of seismic waves are analyzed, and practical expressions for computing the associated mechanical elements are given. The application of both methods is illustrated by solving the case of a typical tunnel in soft ground, which clearly shows the effect due to the stiffness contrast between the two elements.

Keywords : soil-tunnel interaction; free-field deformation; seismic response of tunnels.

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