WIT Press

Seismic Response Analysis Of Lined Tunnels In Poroelastic Soil Medium

Price

Free (open access)

Paper DOI

10.2495/ERES990591

Volume

41

Pages

10

Published

1999

Size

815 kb

Author(s)

S.E. Kattis, K. Karveli, D.L. Karabalis & D.E. Beskos

Abstract

The problem of harmonic wave diffraction by tunnels in an infinite poroelastic saturated soil obeying Biot's theory is studied numerically under conditions of plane strain and the effect of poroelasticity on the response is assessed through some parametric studies. The method is based on the theory of Mei and Foda, which considers the total field to be approximated by the superposition of an elastodynamic problem with modified elastic constants and mass density for the whole domain and a diffusion problem for the pore fluid pressure confined to a boundary layer at free boundaries. Both problems are solved numeri

Keywords